Computerized Adaptive Testing for Schizotypal Personality Disorder: Detecting Individuals at Risk.

ABSTRACT: As schizotypal personality disorder (SPD) increasingly prevails in the general population, a rapid and comprehensive measurement instrument is imperative to screen individuals at risk for SPD. To address this issue, we aimed to develop a computerized adaptive testing for SPD (CAT-SPD) using a non-clinical Chinese sample (N = 999), consisting of a calibration sample (N ₁ = 497) and a validation sample (N ₂ = 502). The item pool of SPD was constructed from several widely used SPD scales and statistical analyses based on the item response theory (IRT) via a calibration sample using a graded response model (GRM). Finally, 90 items, which measured at least one symptom of diagnostic criteria of SPD in the fifth edition of the Diagnostic and Stati

SUBMITTER: Li Y 

PROVIDER: S-EPMC7868333 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature