Understanding between- and within-person differences in experience sampling measurements using mixture factor analysis
Experience sampling, in which participants are questioned repeatedly via smartphone apps, is popular for studying psychological constructs (e.g., wellbeing, depression) within subjects over time. The validity of such studies, e.g., regarding decisions about treatment allocation over time, may be hampered by distortions of the measurement of the relevant constructs, e.g., by response styles or substantively altered interpretations of questionnaire items. This project develops a new approach for disentangling the distortions from the actual construct measurements while taking the specific features of experience sampling studies into account. The method will be implemented in user-friendly existing software.
Dr Kim De Roover & Prof. Jeroen K. Vermunt
NWO Research Talent Grant
1 July 2017 to 30 June 2021