Assessing differential item functioning for the Social Appearance Anxiety Scale: a Scleroderma atient-centred Intervention Network (SPIN) Cohort Study

Objectives The Social Appearance Anxiety Scale (SAAS) is a 16-item questionnaire developed to evaluate fear of appearance-based evaluation by others. The primary objective of this research was to investigate the existence of differential item functioning (DIF) for the 16 SAAS items, comparing patien...

Full description

Bibliographic Details
Main Authors: Paul R Fortin, Elana J Bernstein, Sophia J Sommer, Shirley Haslam Geneviève Guillot, Tatiana Sofia Rodriguez Reyna, Sabrina Hoa, Angelica Bourgeault, Andrea Carboni Jiménez
Format: Article
Language:English
Published: BMJ Publishing Group 2020-10-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/10/10/e037639.full