Assessing the temporal stability of psychological constructs: An illustration of Type D personality, anxiety and depression

Various methods exist to assess the temporal stability of psychological constructs. In this paper we discuss common based on a review personality traits negative affectivity and social inhibition. Most ignore non-normal distributions measurement error in questionnaire item scores. We illustrate how handle these issues using three longitudinal latent variable models. further highlight importance testing often overlooked assumption invariance. Lastly, apply several invariance models, univariate multivariate growth curves trait-state occasions models data from 2625 cancer survivors, affectivity, inhibition, depression, anxiety, across period four years.