A common way to form scores from multiple-item scales is to sum responses of all items.
Though sum scoring is often contrasted with factor analysis as a competing method, we …

Confirmatory factor analyses (CFA) are often used in psychological research when
developing measurement models for psychological constructs. Evaluating CFA model fit can …

Abstract Model fit assessment is a central component of evaluating confirmatory factor
analysis models and the validity of psychological assessments. Fit indices remain popular …

This study investigated the effect the number of observed variables (p) has on three
structural equation modeling indices: the comparative fit index (CFI), the Tucker–Lewis index …

Critics of positive psychology have questioned the validity of positive psychological
assessment measures (PPAMs), which negatively affects the credibility and public …

Psychology has become less WEIRD in recent years, marking progress toward becoming a
truly global psychology. However, this increase in cultural diversity is not matched by greater …

We examined the effect of estimation methods, maximum likelihood (ML), unweighted least
squares (ULS), and diagonally weighted least squares (DWLS), on three population SEM …

Body image research has grown rapidly to include new cultural and linguistic populations,
but this gives rise to a need for measurement instruments that are sensitive to local …

Assessing and analysing individual differences in change over time is of central scientific
importance to developmental neuroscience. However, the literature is based largely on …

Live streaming commerce as a popular marketing method has attracted wide attention, but
little is known about why consumers continue to watch live streaming. To fill this research …