Network-based validation of the psychometric questionnaire EDI-3 for the assessment of eating disorders.

ABSTRACT: Assessing the validity of a psychometric test is fundamental to ensure a reliable interpretation of its outcomes. Few attempts have been made recently to complement classical approaches (e.g., factor models) with a novel technique based on network analysis. The objective of the current study is to carry out a network-based validation of the Eating Disorder Inventory 3 (EDI-3), a questionnaire designed for the assessment of eating disorders. Exploiting a reliable, open source sample of 1206 patients diagnosed with an eating disorder, we set up a robust validation process encompassing detection and handling of redundant EDI-3 items, estimation of the cross-sample psychometric network, resampling bootstrap procedure and computation of the median network of the replica samples. We then employe

SUBMITTER: Punzi C 

PROVIDER: S-EPMC9884211 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature