BACKGROUND: Due to the lack of a validated instrument to measure fatphobia, its epidemiology in India remains unknown. This study aimed to culturally adapt and validate the Fat Phobia Scale-Short Form (FPS-SF) in Hindi.
PATIENTS AND METHODS: A cross-sectional study using a purposive sampling technique was conducted in the metabolic surgery clinic of a tertiary care teaching institution. We followed the World Health Organization's procedure for cultural adaptation and validation of an instrument. The study was biphasic. The phase-1 entailed forward translation, formation of an expert panel, backward translation and cognitive interviewing with the two groups of seven individuals, each with severe obesity. During phase-2, 175 participants (students [n = 120], patients [n = 55]) were recruited after written informed consent. Hindi-FPS-SF was administered to students twice, 1 week apart. All participants completed Hindi-FPS-SF, Modified Weight Bias Internalization Scale (Hindi-WBIS-M), Patient Health Questionnaire (Hindi-PHQ-9) and Generalised Anxiety Disorder Questionnaire (Hindi-GAD-7). Statistical analysis was done.
RESULTS: Several items of forward-translated Hindi-FPS-SF underwent culture-specific modifications in Phase-1. Content or curricular validity and face validity were assessed. In Phase-2, the reliability and validity of Hindi-FPS-SF were evaluated. The internal consistency (Cronbach's alpha), intra-class correlation type-A coefficient (ICC) and cross-cultural reliability were �� =0.902 (P < 0.001), 0.799 (95% CI = 0.753-0.840) (P < 0.001) and (ICC: 0.865-0.992) (P < 0.001), respectively. The convergent-construct validity assessed by correlations between total scores of Hindi-WBIS-M and Hindi-FPS-SF was significant. Criterion validity measured through correlations with original FPS-SF, Hindi-WBIS-M, PHQ-9 and GAD-7 was significant.
CONCLUSIONS: The Hindi-FPS-SF demonstrated good psychometric properties and may be used to measure fat phobia and its correlates in India for epidemiological purposes.