Supplementary Material for: Weight Bias: A Systematic Review of Characteristics and Psychometric Properties of Self-Report Questionnaires

Background: People living with overweight and obesity
often experience weight-based stigmatization. Investigations of the
prevalence and correlates of weight bias and evaluation of weight bias
reduction interventions depend upon psychometrically-sound measurement.
Our paper is the first to comprehensively evaluate the psychometric
properties, use of people-first language within items, and suitability
for use with various populations of available self-report measures of
weight bias. Methods: We searched five electronic
databases to identify English-language self-report questionnaires of
weight bias. We rated each questionnaire's psychometric properties based
on initial validation reports and subsequent use, and examined item
language. Results: Our systematic review identified 40
original self-report questionnaires. Most questionnaires were brief,
demonstrated adequate internal consistency, and tapped key cognitive and
affective dimensions of weight bias such as stereotypes and blaming.
Current psychometric evidence is incomplete for many questionnaires,
particularly with regard to the properties of test-retest reliability,
sensitivity to change as well as discriminant and structural validity.
Most questionnaires were developed prior to debate surrounding
terminology preferences, and do not employ people-first language in the
items administered to participants. Conclusions: We
provide information and recommendations for clinicians and researchers
in selecting psychometrically sound measures of weight bias for various
purposes and populations, and discuss future directions to improve
measurement of this construct.