Resignation in Australian Civil Service

Employee retention has many benefits. It can help with efficiency, customer satisfaction, and workplace diversity. Understanding why people choose to resign is key in building a stable group.
This paper looks at the Australian Department of Education, Training, and Employment (DETE) as well as the Technical and Further Education (TAFE) institute in Queensland, Australia. It compares rates of resignation to the length of employment and to the age of employee.

In [1]:
# import necessary libraries and set display options
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
%matplotlib inline
pd.options.display.float_format = '{:20,.4f}'.format
pd.set_option('display.max_rows', None)
pd.set_option('display.max_columns', None)
pd.set_option('display.width', 3000)
pd.set_option('display.colheader_justify', 'center')
pd.set_option('display.precision', 3)

# open files
dete_survey = pd.read_csv("dete_survey.csv", na_values="Not Stated")
tafe_survey = pd.read_csv("tafe_survey.csv")
In [2]:
# dete_survey
display(dete_survey.head())
display(dete_survey.info())
ID SeparationType Cease Date DETE Start Date Role Start Date Position Classification Region Business Unit Employment Status Career move to public sector Career move to private sector Interpersonal conflicts Job dissatisfaction Dissatisfaction with the department Physical work environment Lack of recognition Lack of job security Work location Employment conditions Maternity/family Relocation Study/Travel Ill Health Traumatic incident Work life balance Workload None of the above Professional Development Opportunities for promotion Staff morale Workplace issue Physical environment Worklife balance Stress and pressure support Performance of supervisor Peer support Initiative Skills Coach Career Aspirations Feedback Further PD Communication My say Information Kept informed Wellness programs Health & Safety Gender Age Aboriginal Torres Strait South Sea Disability NESB
0 1 Ill Health Retirement 08/2012 1,984.0000 2,004.0000 Public Servant A01-A04 Central Office Corporate Strategy and Peformance Permanent Full-time True False False True False False True False False False False False False False False False False True A A N N N A A A A N N N A A A N A A N N N Male 56-60 NaN NaN NaN NaN Yes
1 2 Voluntary Early Retirement (VER) 08/2012 NaN NaN Public Servant AO5-AO7 Central Office Corporate Strategy and Peformance Permanent Full-time False False False False False False False False False False False False False False False False False False A A N N N N A A A N N N A A A N A A N N N Male 56-60 NaN NaN NaN NaN NaN
2 3 Voluntary Early Retirement (VER) 05/2012 2,011.0000 2,011.0000 Schools Officer NaN Central Office Education Queensland Permanent Full-time False False False False False False False False False False False False False False False False False True N N N N N N N N N N N N N N N A A N N N N Male 61 or older NaN NaN NaN NaN NaN
3 4 Resignation-Other reasons 05/2012 2,005.0000 2,006.0000 Teacher Primary Central Queensland NaN Permanent Full-time False True False False False False False False False False False False False False False False False False A N N N A A N N A A A A A A A A A A A N A Female 36-40 NaN NaN NaN NaN NaN
4 5 Age Retirement 05/2012 1,970.0000 1,989.0000 Head of Curriculum/Head of Special Education NaN South East NaN Permanent Full-time False False False False False False False False False False False False False False False True False False A A N N D D N A A A A A A SA SA D D A N A M Female 61 or older NaN NaN NaN NaN NaN
<class 'pandas.core.frame.DataFrame'>
RangeIndex: 822 entries, 0 to 821
Data columns (total 56 columns):
 #   Column                               Non-Null Count  Dtype  
---  ------                               --------------  -----  
 0   ID                                   822 non-null    int64  
 1   SeparationType                       822 non-null    object 
 2   Cease Date                           788 non-null    object 
 3   DETE Start Date                      749 non-null    float64
 4   Role Start Date                      724 non-null    float64
 5   Position                             817 non-null    object 
 6   Classification                       455 non-null    object 
 7   Region                               717 non-null    object 
 8   Business Unit                        126 non-null    object 
 9   Employment Status                    817 non-null    object 
 10  Career move to public sector         822 non-null    bool   
 11  Career move to private sector        822 non-null    bool   
 12  Interpersonal conflicts              822 non-null    bool   
 13  Job dissatisfaction                  822 non-null    bool   
 14  Dissatisfaction with the department  822 non-null    bool   
 15  Physical work environment            822 non-null    bool   
 16  Lack of recognition                  822 non-null    bool   
 17  Lack of job security                 822 non-null    bool   
 18  Work location                        822 non-null    bool   
 19  Employment conditions                822 non-null    bool   
 20  Maternity/family                     822 non-null    bool   
 21  Relocation                           822 non-null    bool   
 22  Study/Travel                         822 non-null    bool   
 23  Ill Health                           822 non-null    bool   
 24  Traumatic incident                   822 non-null    bool   
 25  Work life balance                    822 non-null    bool   
 26  Workload                             822 non-null    bool   
 27  None of the above                    822 non-null    bool   
 28  Professional Development             808 non-null    object 
 29  Opportunities for promotion          735 non-null    object 
 30  Staff morale                         816 non-null    object 
 31  Workplace issue                      788 non-null    object 
 32  Physical environment                 817 non-null    object 
 33  Worklife balance                     815 non-null    object 
 34  Stress and pressure support          810 non-null    object 
 35  Performance of supervisor            813 non-null    object 
 36  Peer support                         812 non-null    object 
 37  Initiative                           813 non-null    object 
 38  Skills                               811 non-null    object 
 39  Coach                                767 non-null    object 
 40  Career Aspirations                   746 non-null    object 
 41  Feedback                             792 non-null    object 
 42  Further PD                           768 non-null    object 
 43  Communication                        814 non-null    object 
 44  My say                               812 non-null    object 
 45  Information                          816 non-null    object 
 46  Kept informed                        813 non-null    object 
 47  Wellness programs                    766 non-null    object 
 48  Health & Safety                      793 non-null    object 
 49  Gender                               798 non-null    object 
 50  Age                                  811 non-null    object 
 51  Aboriginal                           16 non-null     object 
 52  Torres Strait                        3 non-null      object 
 53  South Sea                            7 non-null      object 
 54  Disability                           23 non-null     object 
 55  NESB                                 32 non-null     object 
dtypes: bool(18), float64(2), int64(1), object(35)
memory usage: 258.6+ KB
None
In [3]:
# tafe_survey
display(tafe_survey.head())
display(tafe_survey.info())
Record ID Institute WorkArea CESSATION YEAR Reason for ceasing employment Contributing Factors. Career Move - Public Sector Contributing Factors. Career Move - Private Sector Contributing Factors. Career Move - Self-employment Contributing Factors. Ill Health Contributing Factors. Maternity/Family Contributing Factors. Dissatisfaction Contributing Factors. Job Dissatisfaction Contributing Factors. Interpersonal Conflict Contributing Factors. Study Contributing Factors. Travel Contributing Factors. Other Contributing Factors. NONE Main Factor. Which of these was the main factor for leaving? InstituteViews. Topic:1. I feel the senior leadership had a clear vision and direction InstituteViews. Topic:2. I was given access to skills training to help me do my job better InstituteViews. Topic:3. I was given adequate opportunities for personal development InstituteViews. Topic:4. I was given adequate opportunities for promotion within %Institute]Q25LBL% InstituteViews. Topic:5. I felt the salary for the job was right for the responsibilities I had InstituteViews. Topic:6. The organisation recognised when staff did good work InstituteViews. Topic:7. Management was generally supportive of me InstituteViews. Topic:8. Management was generally supportive of my team InstituteViews. Topic:9. I was kept informed of the changes in the organisation which would affect me InstituteViews. Topic:10. Staff morale was positive within the Institute InstituteViews. Topic:11. If I had a workplace issue it was dealt with quickly InstituteViews. Topic:12. If I had a workplace issue it was dealt with efficiently InstituteViews. Topic:13. If I had a workplace issue it was dealt with discreetly WorkUnitViews. Topic:14. I was satisfied with the quality of the management and supervision within my work unit WorkUnitViews. Topic:15. I worked well with my colleagues WorkUnitViews. Topic:16. My job was challenging and interesting WorkUnitViews. Topic:17. I was encouraged to use my initiative in the course of my work WorkUnitViews. Topic:18. I had sufficient contact with other people in my job WorkUnitViews. Topic:19. I was given adequate support and co-operation by my peers to enable me to do my job WorkUnitViews. Topic:20. I was able to use the full range of my skills in my job WorkUnitViews. Topic:21. I was able to use the full range of my abilities in my job. ; Category:Level of Agreement; Question:YOUR VIEWS ABOUT YOUR WORK UNIT] WorkUnitViews. Topic:22. I was able to use the full range of my knowledge in my job WorkUnitViews. Topic:23. My job provided sufficient variety WorkUnitViews. Topic:24. I was able to cope with the level of stress and pressure in my job WorkUnitViews. Topic:25. My job allowed me to balance the demands of work and family to my satisfaction WorkUnitViews. Topic:26. My supervisor gave me adequate personal recognition and feedback on my performance WorkUnitViews. Topic:27. My working environment was satisfactory e.g. sufficient space, good lighting, suitable seating and working area WorkUnitViews. Topic:28. I was given the opportunity to mentor and coach others in order for me to pass on my skills and knowledge prior to my cessation date WorkUnitViews. Topic:29. There was adequate communication between staff in my unit WorkUnitViews. Topic:30. Staff morale was positive within my work unit Induction. Did you undertake Workplace Induction? InductionInfo. Topic:Did you undertake a Corporate Induction? InductionInfo. Topic:Did you undertake a Institute Induction? InductionInfo. Topic: Did you undertake Team Induction? InductionInfo. Face to Face Topic:Did you undertake a Corporate Induction; Category:How it was conducted? InductionInfo. On-line Topic:Did you undertake a Corporate Induction; Category:How it was conducted? InductionInfo. Induction Manual Topic:Did you undertake a Corporate Induction? InductionInfo. Face to Face Topic:Did you undertake a Institute Induction? InductionInfo. On-line Topic:Did you undertake a Institute Induction? InductionInfo. Induction Manual Topic:Did you undertake a Institute Induction? InductionInfo. Face to Face Topic: Did you undertake Team Induction; Category? InductionInfo. On-line Topic: Did you undertake Team Induction?process you undertook and how it was conducted.] InductionInfo. Induction Manual Topic: Did you undertake Team Induction? Workplace. Topic:Did you and your Manager develop a Performance and Professional Development Plan (PPDP)? Workplace. Topic:Does your workplace promote a work culture free from all forms of unlawful discrimination? Workplace. Topic:Does your workplace promote and practice the principles of employment equity? Workplace. Topic:Does your workplace value the diversity of its employees? Workplace. Topic:Would you recommend the Institute as an employer to others? Gender. What is your Gender? CurrentAge. Current Age Employment Type. Employment Type Classification. Classification LengthofServiceOverall. Overall Length of Service at Institute (in years) LengthofServiceCurrent. Length of Service at current workplace (in years)
0 634,133,009,996,093,952.0000 Southern Queensland Institute of TAFE Non-Delivery (corporate) 2,010.0000 Contract Expired NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN Agree Agree Agree Neutral Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Strongly Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Neutral Agree Agree Yes Yes Yes Yes Face to Face - - Face to Face - - Face to Face - - Yes Yes Yes Yes Yes Female 26 30 Temporary Full-time Administration (AO) 1-2 1-2
1 634,133,654,064,530,944.0000 Mount Isa Institute of TAFE Non-Delivery (corporate) 2,010.0000 Retirement - - - - - - - - - Travel - - NaN Agree Agree Agree Agree Agree Strongly Agree Strongly Agree Agree Strongly Agree Agree Agree Agree Disagree Strongly Agree Strongly Agree Strongly Agree Agree Agree Agree Strongly Agree Agree Agree Agree Strongly Agree Agree Strongly Agree Strongly Agree Agree Agree Strongly Agree No NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN Yes Yes Yes Yes Yes NaN NaN NaN NaN NaN NaN
2 634,138,845,606,562,944.0000 Mount Isa Institute of TAFE Delivery (teaching) 2,010.0000 Retirement - - - - - - - - - - - NONE NaN Agree Agree Agree Agree Agree Agree Strongly Agree Agree Agree Agree Agree Neutral Neutral Strongly Agree Strongly Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree No NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN Yes Yes Yes Yes Yes NaN NaN NaN NaN NaN NaN
3 634,139,903,350,000,000.0000 Mount Isa Institute of TAFE Non-Delivery (corporate) 2,010.0000 Resignation - - - - - - - - - Travel - - NaN Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Yes No Yes Yes - - - NaN - - - - - Yes Yes Yes Yes Yes NaN NaN NaN NaN NaN NaN
4 634,146,578,511,788,032.0000 Southern Queensland Institute of TAFE Delivery (teaching) 2,010.0000 Resignation - Career Move - Private Sector - - - - - - - - - - NaN Agree Agree Strongly Agree Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Agree Strongly Agree Strongly Agree Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Strongly Agree Yes Yes Yes Yes - - Induction Manual Face to Face - - Face to Face - - Yes Yes Yes Yes Yes Male 41 45 Permanent Full-time Teacher (including LVT) 3-4 3-4
<class 'pandas.core.frame.DataFrame'>
RangeIndex: 702 entries, 0 to 701
Data columns (total 72 columns):
 #   Column                                                                                                                                                         Non-Null Count  Dtype  
---  ------                                                                                                                                                         --------------  -----  
 0   Record ID                                                                                                                                                      702 non-null    float64
 1   Institute                                                                                                                                                      702 non-null    object 
 2   WorkArea                                                                                                                                                       702 non-null    object 
 3   CESSATION YEAR                                                                                                                                                 695 non-null    float64
 4   Reason for ceasing employment                                                                                                                                  701 non-null    object 
 5   Contributing Factors. Career Move - Public Sector                                                                                                              437 non-null    object 
 6   Contributing Factors. Career Move - Private Sector                                                                                                             437 non-null    object 
 7   Contributing Factors. Career Move - Self-employment                                                                                                            437 non-null    object 
 8   Contributing Factors. Ill Health                                                                                                                               437 non-null    object 
 9   Contributing Factors. Maternity/Family                                                                                                                         437 non-null    object 
 10  Contributing Factors. Dissatisfaction                                                                                                                          437 non-null    object 
 11  Contributing Factors. Job Dissatisfaction                                                                                                                      437 non-null    object 
 12  Contributing Factors. Interpersonal Conflict                                                                                                                   437 non-null    object 
 13  Contributing Factors. Study                                                                                                                                    437 non-null    object 
 14  Contributing Factors. Travel                                                                                                                                   437 non-null    object 
 15  Contributing Factors. Other                                                                                                                                    437 non-null    object 
 16  Contributing Factors. NONE                                                                                                                                     437 non-null    object 
 17  Main Factor. Which of these was the main factor for leaving?                                                                                                   113 non-null    object 
 18  InstituteViews. Topic:1. I feel the senior leadership had a clear vision and direction                                                                         608 non-null    object 
 19  InstituteViews. Topic:2. I was given access to skills training to help me do my job better                                                                     613 non-null    object 
 20  InstituteViews. Topic:3. I was given adequate opportunities for personal development                                                                           610 non-null    object 
 21  InstituteViews. Topic:4. I was given adequate opportunities for promotion within %Institute]Q25LBL%                                                            608 non-null    object 
 22  InstituteViews. Topic:5. I felt the salary for the job was right for the responsibilities I had                                                                615 non-null    object 
 23  InstituteViews. Topic:6. The organisation recognised when staff did good work                                                                                  607 non-null    object 
 24  InstituteViews. Topic:7. Management was generally supportive of me                                                                                             614 non-null    object 
 25  InstituteViews. Topic:8. Management was generally supportive of my team                                                                                        608 non-null    object 
 26  InstituteViews. Topic:9. I was kept informed of the changes in the organisation which would affect me                                                          610 non-null    object 
 27  InstituteViews. Topic:10. Staff morale was positive within the Institute                                                                                       602 non-null    object 
 28  InstituteViews. Topic:11. If I had a workplace issue it was dealt with quickly                                                                                 601 non-null    object 
 29  InstituteViews. Topic:12. If I had a workplace issue it was dealt with efficiently                                                                             597 non-null    object 
 30  InstituteViews. Topic:13. If I had a workplace issue it was dealt with discreetly                                                                              601 non-null    object 
 31  WorkUnitViews. Topic:14. I was satisfied with the quality of the management and supervision within my work unit                                                609 non-null    object 
 32  WorkUnitViews. Topic:15. I worked well with my colleagues                                                                                                      605 non-null    object 
 33  WorkUnitViews. Topic:16. My job was challenging and interesting                                                                                                607 non-null    object 
 34  WorkUnitViews. Topic:17. I was encouraged to use my initiative in the course of my work                                                                        610 non-null    object 
 35  WorkUnitViews. Topic:18. I had sufficient contact with other people in my job                                                                                  613 non-null    object 
 36  WorkUnitViews. Topic:19. I was given adequate support and co-operation by my peers to enable me to do my job                                                   609 non-null    object 
 37  WorkUnitViews. Topic:20. I was able to use the full range of my skills in my job                                                                               609 non-null    object 
 38  WorkUnitViews. Topic:21. I was able to use the full range of my abilities in my job. ; Category:Level of Agreement; Question:YOUR VIEWS ABOUT YOUR WORK UNIT]  608 non-null    object 
 39  WorkUnitViews. Topic:22. I was able to use the full range of my knowledge in my job                                                                            608 non-null    object 
 40  WorkUnitViews. Topic:23. My job provided sufficient variety                                                                                                    611 non-null    object 
 41  WorkUnitViews. Topic:24. I was able to cope with the level of stress and pressure in my job                                                                    610 non-null    object 
 42  WorkUnitViews. Topic:25. My job allowed me to balance the demands of work and family to my satisfaction                                                        611 non-null    object 
 43  WorkUnitViews. Topic:26. My supervisor gave me adequate personal recognition and feedback on my performance                                                    606 non-null    object 
 44  WorkUnitViews. Topic:27. My working environment was satisfactory e.g. sufficient space, good lighting, suitable seating and working area                       610 non-null    object 
 45  WorkUnitViews. Topic:28. I was given the opportunity to mentor and coach others in order for me to pass on my skills and knowledge prior to my cessation date  609 non-null    object 
 46  WorkUnitViews. Topic:29. There was adequate communication between staff in my unit                                                                             603 non-null    object 
 47  WorkUnitViews. Topic:30. Staff morale was positive within my work unit                                                                                         606 non-null    object 
 48  Induction. Did you undertake Workplace Induction?                                                                                                              619 non-null    object 
 49  InductionInfo. Topic:Did you undertake a Corporate Induction?                                                                                                  432 non-null    object 
 50  InductionInfo. Topic:Did you undertake a Institute Induction?                                                                                                  483 non-null    object 
 51  InductionInfo. Topic: Did you undertake Team Induction?                                                                                                        440 non-null    object 
 52  InductionInfo. Face to Face Topic:Did you undertake a Corporate Induction; Category:How it was conducted?                                                      555 non-null    object 
 53  InductionInfo. On-line Topic:Did you undertake a Corporate Induction; Category:How it was conducted?                                                           555 non-null    object 
 54  InductionInfo. Induction Manual Topic:Did you undertake a Corporate Induction?                                                                                 555 non-null    object 
 55  InductionInfo. Face to Face Topic:Did you undertake a Institute Induction?                                                                                     530 non-null    object 
 56  InductionInfo. On-line Topic:Did you undertake a Institute Induction?                                                                                          555 non-null    object 
 57  InductionInfo. Induction Manual Topic:Did you undertake a Institute Induction?                                                                                 553 non-null    object 
 58  InductionInfo. Face to Face Topic: Did you undertake Team Induction; Category?                                                                                 555 non-null    object 
 59  InductionInfo. On-line Topic: Did you undertake Team Induction?process you undertook and how it was conducted.]                                                555 non-null    object 
 60  InductionInfo. Induction Manual Topic: Did you undertake Team Induction?                                                                                       555 non-null    object 
 61  Workplace. Topic:Did you and your Manager develop a Performance and Professional Development Plan (PPDP)?                                                      608 non-null    object 
 62  Workplace. Topic:Does your workplace promote a work culture free from all forms of unlawful discrimination?                                                    594 non-null    object 
 63  Workplace. Topic:Does your workplace promote and practice the principles of employment equity?                                                                 587 non-null    object 
 64  Workplace. Topic:Does your workplace value the diversity of its employees?                                                                                     586 non-null    object 
 65  Workplace. Topic:Would you recommend the Institute as an employer to others?                                                                                   581 non-null    object 
 66  Gender. What is your Gender?                                                                                                                                   596 non-null    object 
 67  CurrentAge. Current Age                                                                                                                                        596 non-null    object 
 68  Employment Type. Employment Type                                                                                                                               596 non-null    object 
 69  Classification. Classification                                                                                                                                 596 non-null    object 
 70  LengthofServiceOverall. Overall Length of Service at Institute (in years)                                                                                      596 non-null    object 
 71  LengthofServiceCurrent. Length of Service at current workplace (in years)                                                                                      596 non-null    object 
dtypes: float64(2), object(70)
memory usage: 395.0+ KB
None

Initial Look & Header Standardization

There are many columns in both files that are not needed to answer the research questions. Making the header style more uniform allows for code that is easier to read.

In [4]:
# drop unnecessary columns
dete_survey_updated = dete_survey.drop(dete_survey.columns[28:49], axis=1)
tafe_survey_updated = tafe_survey.drop(tafe_survey.columns[17:66], axis=1)

# modify & standardize header
map = {'Record ID': 'id', 'CESSATION YEAR': 'cease_date', 'Reason for ceasing employment': 'separationtype',
       'Gender. What is your Gender?': 'gender', 'CurrentAge. Current Age': 'age',
       'Employment Type. Employment Type': 'employment_status', 'Classification. Classification': 'position',
       'LengthofServiceOverall. Overall Length of Service at Institute (in years)': 'institute_service',
       'LengthofServiceCurrent. Length of Service at current workplace (in years)': 'role_service'}
tafe_survey_updated = tafe_survey_updated.rename(columns=map)
dete_survey_updated.columns = dete_survey_updated.columns.str.lower().str.replace(' ', '_').str.strip()
tafe_survey_updated.columns = tafe_survey_updated.columns.str.lower().str.replace(' ', '_').str.strip()

display(dete_survey_updated.columns.to_list())
display(tafe_survey_updated.columns.to_list())
['id',
 'separationtype',
 'cease_date',
 'dete_start_date',
 'role_start_date',
 'position',
 'classification',
 'region',
 'business_unit',
 'employment_status',
 'career_move_to_public_sector',
 'career_move_to_private_sector',
 'interpersonal_conflicts',
 'job_dissatisfaction',
 'dissatisfaction_with_the_department',
 'physical_work_environment',
 'lack_of_recognition',
 'lack_of_job_security',
 'work_location',
 'employment_conditions',
 'maternity/family',
 'relocation',
 'study/travel',
 'ill_health',
 'traumatic_incident',
 'work_life_balance',
 'workload',
 'none_of_the_above',
 'gender',
 'age',
 'aboriginal',
 'torres_strait',
 'south_sea',
 'disability',
 'nesb']
['id',
 'institute',
 'workarea',
 'cease_date',
 'separationtype',
 'contributing_factors._career_move_-_public_sector_',
 'contributing_factors._career_move_-_private_sector_',
 'contributing_factors._career_move_-_self-employment',
 'contributing_factors._ill_health',
 'contributing_factors._maternity/family',
 'contributing_factors._dissatisfaction',
 'contributing_factors._job_dissatisfaction',
 'contributing_factors._interpersonal_conflict',
 'contributing_factors._study',
 'contributing_factors._travel',
 'contributing_factors._other',
 'contributing_factors._none',
 'gender',
 'age',
 'employment_status',
 'position',
 'institute_service',
 'role_service']

Filtering Year Columns

The code cell below shows the responses in the separationtype column. This study is focused only on resignations. The DETE survey has multiple resignation codes. All of these rows, plus the corresponding rows in the tafe survey, will be copied to new data frames. This reduces 822 DETE rows and 702 TAFE rows to 262 and 340 respectively. from The relevant values will be cleaned and the rows checked to see if they are corrupted by any outlier values.

In [5]:
# values coded into speparationtype column
display(dete_survey_updated["separationtype"].value_counts(dropna=False))
display(tafe_survey_updated["separationtype"].value_counts(dropna=False))
Age Retirement                          285
Resignation-Other reasons               150
Resignation-Other employer               91
Resignation-Move overseas/interstate     70
Voluntary Early Retirement (VER)         67
Ill Health Retirement                    61
Other                                    49
Contract Expired                         34
Termination                              15
Name: separationtype, dtype: int64
Resignation                 340
Contract Expired            127
Retrenchment/ Redundancy    104
Retirement                   82
Transfer                     25
Termination                  23
NaN                           1
Name: separationtype, dtype: int64
In [6]:
# copy separationtype rows using regex and vectorized string methods
pattern = r"Resignation"
dete_resignations = dete_survey_updated[dete_survey_updated["separationtype"].str.contains(pattern, regex=True)].copy()
tafe_resignations = tafe_survey_updated[tafe_survey_updated["separationtype"].str.contains(pattern, regex=True, na=False)].copy()

display(dete_resignations["separationtype"].value_counts(dropna=False))
display(tafe_resignations["separationtype"].value_counts(dropna=False))
Resignation-Other reasons               150
Resignation-Other employer               91
Resignation-Move overseas/interstate     70
Name: separationtype, dtype: int64
Resignation    340
Name: separationtype, dtype: int64
In [7]:
# dete_start_date > 1940
dete_resignations = dete_resignations[1940 < dete_resignations["dete_start_date"]]

# dete_start_date < role_start_date < cease_date
dete_resignations = dete_resignations[1940 < dete_resignations["role_start_date"]]
dete_resignations = dete_resignations[dete_resignations["role_start_date"] < 2021]

# cease_date < current date
pattern = r"[0-9][0-9]/"
dete_resignations["cease_date"] = dete_resignations["cease_date"].str.replace(pattern, "", regex=True).astype(float)
dete_resignations = dete_resignations[dete_resignations["cease_date"] < 2021]
In [8]:
dete_resignations.boxplot(column=["dete_start_date", "role_start_date", "cease_date"])
Out[8]:
<AxesSubplot:>

Filtering Year Columns Continued

The DETE dataframe had one row in the role_start_date column with a year entry of 200. This row was excluded. There are a number of rows with NaN, but they can stay in because Pandas vectorized methods accommodate them. The first question is to assess connections between resignation and newer employees. The TAFE dataframe includes a employment duration column. A similar column needs to created for the DETE information.

In [9]:
# display TAFE institute service
display(tafe_resignations["institute_service"].value_counts())
display(tafe_resignations["institute_service"].describe())
Less than 1 year      73
1-2                   64
3-4                   63
5-6                   33
11-20                 26
7-10                  21
More than 20 years    10
Name: institute_service, dtype: int64
count                  290
unique                   7
top       Less than 1 year
freq                    73
Name: institute_service, dtype: object
In [10]:
# create and display DETE institute service column
# the dictionary reassigns discrete numbers into a more useable range
dete_resignations["institute_service"] = dete_resignations["cease_date"] - dete_resignations["dete_start_date"]
di = {0.0: "Less than 1 year", 1.0: "1-2", 2.0:"1-2", 3.0:"3-4", 4.0:"3-4", 5.0:"5-6", 6.0:"5-6", 7.0:"7-10",
      8.0:"7-10", 9.0:"7-10", 10.0:"7-10", 11.0:"11-20", 12.0:"11-20", 13.0:"11-20", 14.0:"11-20", 15.0:"11-20",
      16.0:"11-20", 17.0:"11-20", 18.0:"11-20", 19.0:"11-20", 20.0:"11-20", 21:"More than 20 years",
      22:"More than 20 years", 23:"More than 20 years", 24:"More than 20 years", 25:"More than 20 years",
      26:"More than 20 years", 27:"More than 20 years", 28:"More than 20 years", 29:"More than 20 years",
      30:"More than 20 years", 31:"More than 20 years", 32:"More than 20 years", 33:"More than 20 years",
      34:"More than 20 years", 35:"More than 20 years", 36:"More than 20 years", 38:"More than 20 years",
      39:"More than 20 years", 41:"More than 20 years", 42:"More than 20 years", 49:"More than 20 years"}
dete_resignations['institute_service'] = dete_resignations['institute_service'].map(di)

display(dete_resignations["institute_service"].value_counts())
dete_resignations["institute_service"].describe()
11-20                 52
More than 20 years    41
7-10                  39
5-6                   38
3-4                   36
1-2                   36
Less than 1 year      20
Name: institute_service, dtype: int64
Out[10]:
count       262
unique        7
top       11-20
freq         52
Name: institute_service, dtype: object

Aggregating Dissatisfaction

Each dataset has multiple resignation columns that could be considered as dissatisfaction, as opposed to other reasons such as ill_health, study, or maternity. These columns will be aggregated into a single dissatisfied column for each dataset. Values will be coded to True or False. At this time, the NaN values are being coded as False.

In [11]:
# inspect TAFE resignation values
display(tafe_resignations["contributing_factors._dissatisfaction"].value_counts(dropna=False))
display(tafe_resignations["contributing_factors._job_dissatisfaction"].value_counts(dropna=False))
-                                         277
Contributing Factors. Dissatisfaction      55
NaN                                         8
Name: contributing_factors._dissatisfaction, dtype: int64
-                      270
Job Dissatisfaction     62
NaN                      8
Name: contributing_factors._job_dissatisfaction, dtype: int64
In [12]:
# convert TAFE resignation values to boolean values
# vectorized methods are amazing
def boolean_bummer(element):
    if pd.isnull(element):
        return np.nan
    elif element == "-":
        return False
    else:
        return True

tafe_resig_factors = ["contributing_factors._dissatisfaction", "contributing_factors._job_dissatisfaction"]    
tafe_resignations[tafe_resig_factors] = tafe_resignations[tafe_resig_factors].applymap(boolean_bummer)
In [13]:
# inspect TAFE resignation values after converting to boolean
display(tafe_resignations["contributing_factors._dissatisfaction"].value_counts(dropna=False))
display(tafe_resignations["contributing_factors._job_dissatisfaction"].value_counts(dropna=False))
False    277
True      55
NaN        8
Name: contributing_factors._dissatisfaction, dtype: int64
False    270
True      62
NaN        8
Name: contributing_factors._job_dissatisfaction, dtype: int64
In [14]:
# create new TAFE column `dissatisfied` using .any()
# trying to preserve NaN as NaN does not work, gets converted to True or False
tafe_resignations["dissatisfied"] = tafe_resignations[tafe_resig_factors].any(axis=1, skipna=True)
In [15]:
# inspect all three columns for logical errors
tafe_resignations = tafe_resignations.reindex()
display(tafe_resignations.loc[39:53,["contributing_factors._dissatisfaction", "contributing_factors._job_dissatisfaction",
                           "dissatisfied"]])
contributing_factors._dissatisfaction contributing_factors._job_dissatisfaction dissatisfied
39 False False False
40 True False True
41 False False False
42 False False False
45 False False False
46 False False False
47 True False True
49 False False False
51 NaN NaN False
52 False True True
53 False False False
In [16]:
# create new DETE column `dissatisfied` using .any()
dete_resig_factors = ["job_dissatisfaction", "dissatisfaction_with_the_department", "physical_work_environment",
                      "lack_of_recognition", "lack_of_job_security", "work_location", "employment_conditions",
                      "work_life_balance", "workload"]

dete_resignations["dissatisfied"] = dete_resignations[dete_resig_factors].any(axis=1, skipna=True)
display(dete_resignations["dissatisfied"].value_counts())
True     132
False    130
Name: dissatisfied, dtype: int64

Combine Datasets

Both datasets are ready to combine. Vertical concatenation will work best for the purpose of this study. Only the relevant columns will be used. They will be used to create new two new columns, one of age groups, and the other length of employment groups.

In [17]:
# make two new dataframes containing only relevant columns
dete_resignations_up = dete_resignations[["age", "institute_service", "dissatisfied"]].copy()
tafe_resignations_up = tafe_resignations[["age", "institute_service", "dissatisfied"]].copy()

# add institute column to each dataset w/ dataset label
dete_resignations_up["institute"] = "DETE"
tafe_resignations_up["institute"] = "TAFE"

# combine dataframes vertically
combined = pd.concat([dete_resignations_up, tafe_resignations_up], ignore_index=True)
display(combined.head())
display(combined.tail())
age institute_service dissatisfied institute
0 36-40 7-10 False DETE
1 41-45 11-20 True DETE
2 31-35 3-4 False DETE
3 46-50 11-20 True DETE
4 31-35 3-4 False DETE
age institute_service dissatisfied institute
597 21 25 5-6 False TAFE
598 51-55 1-2 False TAFE
599 NaN NaN False TAFE
600 51-55 5-6 False TAFE
601 26 30 3-4 False TAFE
In [18]:
# use institute_service to create new service_cat column
# function to reassign institute_service values
def service_changer(element):
    if element == "Less than 1 year" or element == "1-2":
        return "New"
    elif element == "3-4" or element == "5-6":
        return "Experienced"
    elif element == "7-10":
        return "Established"
    elif pd.isnull(element):
        return np.nan
    else:
        return "Veteran"
    
combined["service_cat"] = combined["institute_service"].apply(service_changer)
display(combined["institute_service"].value_counts(dropna=False))
1-2                   100
3-4                    99
Less than 1 year       93
11-20                  78
5-6                    71
7-10                   60
More than 20 years     51
NaN                    50
Name: institute_service, dtype: int64
In [19]:
# use age to create new age_groups column
alpha = r"[a-z]*"
combined["age_groups"] = combined["age"]
combined["age_groups"] = combined["age_groups"].str.replace(" ","-").str.replace(alpha, "", regex=True).str.replace("--", "-")
combined["age_groups"] = combined["age_groups"].str.replace("20-", "Under 30").str.replace("21-25", "Under 30").str.replace("26-30", "Under 30")
combined["age_groups"] = combined["age_groups"].str.replace("31-35", "31-40").str.replace("36-40", "31-40").str.replace("41-45", "41-50").str.replace("46-50", "41-50")
combined["age_groups"] = combined["age_groups"].str.replace("51-55", "51-60").str.replace("56-60", "51-60").str.replace("56-", "51-60").str.replace("61-", "Over 60")
display(combined["age_groups"].value_counts(dropna=False))
41-50       155
Under 30    131
31-40       128
51-60       119
NaN          52
Over 60      17
Name: age_groups, dtype: int64
In [20]:
# heatmap showing missing values in pink
import seaborn as sns
display(sns.heatmap(combined.isnull(), cbar=False))
<AxesSubplot:>
In [21]:
# bar chart showing resignation vs length of employment categories
pv_service_cat = combined.pivot_table(values="dissatisfied", index="service_cat")
ax = pv_service_cat.plot(kind="barh", legend=False, title="Resignations Due to Dissatisfaction, Grouped by Length of Employment", color="darkblue")
ax.set_ylabel("")
plt.show()
In [22]:
# bar chart showing resignation vs age categories
pv_age_groups = combined.pivot_table(values="dissatisfied", index="age_groups")
ax = pv_age_groups.plot(kind="barh", legend=False, title="Resignations Due to Dissatisfaction, Grouped by Age", color="green")
ax.set_ylabel("")
plt.show()
In [23]:
# bar chart showing resignation vs insitute
pv_institute = combined.pivot_table(values="dissatisfied", index="institute")
ax = pv_institute.plot(kind="barh", legend=False, title="Resignations Due to Dissatisfaction, Grouped by Institute", color="orange")
ax.set_ylabel("")
plt.show()

Conclusions

While this is only a primary survey, it appears that both age and length of employment are correlated to resignation due to job dissatisfaction. The high rate seen in workers over the age of 60 suggests reconsidering inclusion factors. The data also show an almost double rate of resignation due to job dissatisfaction in the DETE.