Confirmatory factor analysis and examination of the psychometric properties of the eating beliefs questionnaire

BMC Psychiatry

Research Article

Jayanthi Raman¹  Phillipa Hay²  Stephen W. Touyz³  Maree J. Abbott³  Amy L. Burton³  Sabina Kleitman³  Evelyn Smith⁴  Jessica Swinbourne⁵ 

[1] School of Medicine, Western Sydney University, Sydney, NSW, Australia;School of Medicine, Western Sydney University, Sydney, NSW, Australia;Translational Health Research Institute (THRI), School of Medicine, Western Sydney University, Sydney, NSW, Australia;School of Psychology, University of Sydney, Sydney, NSW, Australia;School of Social Sciences and Psychology, Western Sydney University, Sydney, NSW, Australia;The Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders, Sydney, NSW, Australia;

关键词: Eating disorders;    Binge eating;    Cognitive;    Beliefs;    Self-report;    Questionnaire;    Factor analysis;    Psychometric;    Validity;    Reliability;   

DOI  :  10.1186/s12888-017-1394-z

 received in 2017-02-06, accepted in 2017-06-21,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundThe Eating Beliefs Questionnaire (EBQ) is a 27-item self-report measure that assesses positive and negative beliefs about binge eating. It has been validated and its factor structure explored in a non-clinical sample. This study tested the psychometric properties of the EBQ in a clinical and a non-clinical sample.MethodA sample of 769 participants (573 participants recruited from the university and general community, 76 seeking treatment for an eating disorder and 120 participating in obesity research) completed a battery of questionnaires. A subset of clinical participants with a diagnosis of Bulimia Nervosa or Binge Eating Disorder completed the test-battery before and after receiving a psychological treatment (n = 27) or after allocation to a wait-list period (n = 28), and a subset of 35 community participants completed the test battery again after an interval of two-weeks. Confirmatory Factor Analysis (CFA) was performed.ResultsCFA found a two-factor structure that provided a good fit to the data, supporting the solution presented in the development paper. Items with poor psychometric properties were removed, resulting in a 16 item measure. EBQ scores were found to correlate with binge eating episode frequency, increases in body mass index (BMI), and measures of eating disorder behaviours and related psychopathology. The EBQ was found to have excellent internal consistency (α = .94), good test-retest reliability (r = .91) and sensitivity to treatment.ConclusionThese findings indicate that the EBQ is a psychometrically sound and clinically useful measure.

【 授权许可】

CC BY   
© The Author(s). 2017