Browsing by Subject "measurement invariance"

Recognizing factors that contribute to strain of employees is important. If we are able to do this we are also able to promote the mental health of the working population. Valid measurement is required if we want to achieve this. In this thesis the focus will be on the job demand-control questionnaire's construct validity and longitudinal measurement invariance. Some problems exist in the research and the aim of this thesis is to contribute in solving these problems. The sample is from the Children's Risk Factors for Coronary Heart disease study, and the sample includes observations from a wide spread of people from different occupations. Structural equation modeling is used to test the hypotheses of construct validity and longitudinal measurement invariance. The results point towards good construct validity and longitudinal measurement invariance. Some remarks that came up with the analysis are discussed. The results give clarity considering the hypotheses and confidence in deductions made with the questionnaire.