Getting entangled with body image: development and validation of a new measure

Several studies have highlighted the role of cognitive fusion on human suffering and a wide range of psychopathological conditions. Namely, this process has been regarded as a core aspect in eating disorders. Nevertheless, the study of cognitive fusion on eating psychopathology is scarce and a measure that specifically concerns body image was still to be created. The present study aimed therefore at developing and validating such measure, the Cognitive Fusion Questionnaire - Body Image (CFQ-BI).

The current study was conducted using different samples of both genders, collected in the general and student populations. The dimensionality of the CFQ-BI was tested through an exploratory factor analysis and a confirmatory factor analysis (CFA). The scale's internal reliability and other psychometric qualities were also analysed.

The CFQ-BI's final structure was one-dimensional and comprised 10 items that assess body image-related cognitive fusion. This final structure explained a total of 73.41% of the variance. The adequacy of the questionnaire was corroborated through a CFA which revealed that CFQ-BI presents good global and local adjustment values and goodness-of-fit indices. Results also showed that the CFQ-BI holds a very good internal consistency (α = .96), convergent, divergent and temporal reliabilities, and is able to discriminate cases from non-cases of eating psychopathology.

The CFQ-BI was thus established as a short, robust, and reliable measure of body image-related cognitive fusion. This new measure may correspond to a significant contribution to research and clinical practice in the field of body image and eating-related difficulties.

A new measure of body image-related cognitive fusion (CFQ-BI) was developed. The CFQ-BI was proved to be a short, robust, and reliable measure. Body image-related cognitive fusion was strongly linked to eating psychopathology. CFQ-BI may be useful in eating psychopathology's research and clinical practice.