Abstract. In many large-scale surveys, life satisfaction is measured with a single item. Little is known about how sensitive single-item instruments react to changes across time or in the face of critical life events. The present study ...

Abstract. Although the popularity of research on academic emotions is on the rise, little is known about the extent to which these emotional experiences are due to stable (trait) versus situational (state) influences. In the present paper, ...

Abstract. Support is key to healthy family functioning. Using the family social relations model (SRM), it has already been shown that variability in perceived support is mostly attributed to individual perceiver effects. Little is known, ...

Abstract. We present a probit latent state model for dichotomous items with one latent state variable for each occasion of measurement and one latent item-effect variable for each item, except for a reference item. All latent variables are ...

Abstract. In longitudinal studies with short time lags, classical models of latent state-trait (LST) theory that assume no carry-over effects between neighboring occasions of measurement are often inappropriate, and have to be extended by ...

Abstract. In psychological research, statistical models of latent state-trait (LST) theory are popular for the analysis of longitudinal data. We identify several limitations of available models when applied to intensive longitudinal data ...