Abstract: Grit, defined as passion and perseverance for long-term goals, has received much attention over the last decade. However, its dimensionality is still very much up for debate. The present study examines whether the bidimensional ...
Abstract. The Hungarian version of the Penn State Worry Questionnaire (PSWQ) was validated in two studies, using five different samples. Study 1 tested the factor structure and internal consistency of the PSWQ in two undergraduate student ...
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. The common factor model – by far the most widely used model for factor analysis – assumes equal item intercepts across respondents. Due to idiosyncratic ways of understanding and answering items of a questionnaire, this ...