Protocol Registration for Reliability Generalization Meta-Analysis of the Body Esteem Scale (BES)

The Body Esteem Scale (BES), developed by Franzoi and Shields (1984), is a psychometrically robust instrument designed to assess individuals’ subjective perceptions of their bodies through gender-specific dimensions, reflecting the influence of sociocultural norms and biological factors. Unlike earlier unidimensional measures, the BES recognizes body esteem as a multifaceted construct, comprising three distinct subscales for each gender: for males, these include Physical Attractiveness (e.g., facial features, physique), Upper Body Strength (e.g., muscularity), and Physical Condition (e.g., stamina); for females, subscales encompass Sexual Attractiveness (e.g., body parts tied to desirability), Weight Concern (e.g., hips, weight control), and Physical Condition. Responses are recorded on a 5-point Likert scale, with higher scores indicating greater body esteem. The scale demonstrates strong internal consistency (Cronbach’s α = .78–.87) and discriminant validity, effectively distinguishing clinical groups (e.g., individuals with anorexia nervosa, male weightlifters) from controls. Widely used in clinical, research, and educational settings, the BES aids in evaluating body image disturbances, monitoring intervention outcomes, and investigating cultural or developmental influences on body perception. Its strengths lie in its gender-sensitive, multidimensional framework and accessibility, though limitations include its initial validation in college populations and Western cultural biases. The BES has advanced theoretical understanding by challenging unidimensional assumptions of body esteem, emphasizing how societal expectations shape gendered body perceptions. While it remains a cornerstone in body image research, future adaptations could enhance inclusivity for non-binary individuals and non-Western cultural contexts.