EWCTS 2021  - Questionnaire development

The EWCTS 2021 questionnaire was adapted from the original questionnaire developed for the EWCS 2020 .

To adapt the survey from face-to-face to telephone interviewing, the length of the original face-to-face questionnaire had to be shortened. To achieve this reduction, substantive cuts were made, and parts of the questionnaire were modularised, meaning that in those parts, each respondent was asked only a subset of the questions.

The selection of questions on job quality was guided by the work of the Organisation for Economic Co-operation and Development’s (OECD) Guidelines on measuring the quality of the working environment which include two sets of questions on the working environment.

  • The condensed module asks 13 questions pertaining to 11 job characteristics; this module was added to the core part of the EWCTS questionnaire. The quality of the working environment indicator is calculated based on this condensed module.
  • The extended module aims to conduct a more comprehensive assessment of the working environment; these questions are collected in Module 1 (M1 in the table below).

The items included in the modules are those that are most relevant to workers’ well-being and those with the strongest evidence for their statistical reliability.

The table below shows the general design of the telephone interview questionnaire. It is composed of three parts. One is fixed and mandatory for all respondents while the other two are modularised. Each respondent answered three sections of the questionnaire: the core questionnaire, one version of Module 1 and one version of Module 2.

The allocation of respondents to groups was randomised so that every respondent had the same probability of being asked one of the modularised questions.

Section Details of questions Respondents
Core questionnaire Job and establishments characteristics
Sociodemographic characteristics
Work (activity) characteristics: place of work, contact with customers
Condensed OECD job quality questions 
Key working life indicators (WHO-5 well-being index, health and safety risks, work–life balance)

Module 1

Modularised job quality component to capture additional job quality questions (extended job quality questions) 

Job demands:  unsocial working time, job insecurity

Job resources: autonomy, job prospects, intrinsic rewards, training, organisational participation, flexible working arrangements 


Job demands: physical risks, physical demands, unsocial working time 

Job resources: autonomy, social support

Job demands: 
physical demands, physical risks, job insecurity 

Job resources: job prospects, intrinsic rewards, training, organisational participation

Each dimension 67%

Module 2: 

Thematic modules

Collective quality of working life module 
Work organisation, job resources and well-being at work, work–life conflicts


Individual quality of working life module 
Paid and unpaid work, health and well-being, ability to make ends meet



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