Background Suicide is a global public health problem. Digital interventions are considered a
low-threshold treatment option for people with suicidal ideation or behaviors. Internet-based …

Question Digital interventions based on cognitive–behavioural therapy (iCBT) is associated
with reductions in suicidal ideation. However, fine-grained analyses of effects and potential …

Introduction Digital cognitive behavioral therapy (i-CBT) interventions for the treatment of
depression have been extensively studied and shown to be effective in the reduction of …

The deviation between chronological age and age predicted from neuroimaging data has
been identified as a sensitive risk marker of cross-disorder brain changes, growing into a …

Abstract Research on the Dark Tetrad (Machiavellianism, narcissism, psychopathy, and
sadism) is burgeoning. Therefore, psychometrically sound measures are required to ensure …

Pooling the relative risk (RR) across studies investigating rare events, for example, adverse
events, via meta‐analytical methods still presents a challenge to researchers. The main …

Several psychometric tests and self‐reports generate count data (eg, divergent thinking
tasks). The most prominent count data item response theory model, the Rasch Poisson …

Abstract The Remote Associates Test (RAT; Mednick, 1962; Mednick & Mednick, 1967) is a
commonly employed test of creative convergent thinking. The RAT is scored with a …

Internet-and mobile-based cognitive behavioral therapy (iCBT) might reduce suicidal
ideation. However, recent meta-analyses found small effect sizes, and it remains unclear …

The framework of multidimensional item response theory (MIRT) offers psychometric models
for various data settings, most popularly for dichotomous and polytomous data. Less …