본 연구는 Gearhardt, Corbin과 Brownell(2016)이 음식중독의 측정을 위해 개발한 Yale Food Addiction Scale 2.0(YFAS 2.0)의 번안 및 타당화를 위해 실시되었다. 이를 위하여 인터넷 카페, 연구자 개인 SNS, 대구 소재 대학 1곳, 경북 소재 대학 1곳에서 성인 435명을 대상으로 연구대상자를 모집하였다. 예일음식중독척도 2.0의 문항별 진단을 위한 임계치를 ROC 곡선을 사용하여 국내 실정에 맞게 조정한 뒤, 요인구조의 적절성을 확보하기 위한 탐색적 요인분석과 확인적 요인분석을 실시하였고 타당도와 신뢰도를 분석하였다. 그 결과, 첫째 총 35문항 중 16개의 문항에서 임계치가 변경되었다. 둘째, 원척도와 마찬가지로 11개의 증상에 대한 단일 요인구조가 추출되었으며 내적 일치도는 적절한 것으로 나타났다. 또한, 확인적 요인분석 결과, 단일 요인이 적합한 것으로 나타났다. 예일음식중독척도 2.0은 폭식행동 척도(Binge Eating Scale; BES), 일반적 음식갈망-특질 척도(General-Food Cravings Questionnaire-Trait; G-FCQ-T)와 정적 상관을 보였다. 그러나 선행연구와는 달리 Three Factor Eating Questionnaire(TFEQ)의 하위요인 중 식이제한 및 BMI와는 부적 상관을 보였다. 종합적으로, 예일음식중독척도 2.0의 공인 타당도, 교차 타당도, 수렴 타당도는 유의미하였다. 마지막으로 본 연구결과를 바탕으로 연구의 시사점과 제한점에 대하여 논의하였다.
This study was conducted to validate the Yale Food Addiction Scale 2.0 (YFAS 2.0) developed by Gearhardt, Corbin and Brownell (2016) for the measurement of food addiction. For this purpose, 435 adults were recruited from internet cafes, researchers' personal SNS, one university in Daegu and one university in Kyungbuk. The ROC curve was used to adjust the thresholds for each item of the Yale food addiction scale 2.0 to fit the domestic situation. The exploratory factor analysis and the confirmatory factor analysis were conducted to ensure the appropriateness of the factor structure, and the validity and reliability respectively. As a result, first of all, the threshold was changed in 16 of the 35 items. Second, as with the original scale, the single factor structure for 11 symptoms was extracted and the internal consistency was found to be appropriate. As a result of confirmatory factor analysis, it was shown that they had better fit in single factor. Yale food addiction scale 2.0 showed a positive correlation with the Binge Eating Scale (BES) and the general food craving-trait scale (G-FCQ-T). However, unlike previous studies, sub-factors of Three Factor Eating Questionnaire (TFEQ) showed negative correlation with dietary restriction and BMI. Overall, the validated validity, cross validity, and convergent validity of the Yale Food Addiction Scale 2.0 were significant. Finally, the implications and limitations of the study were discussed based on the results of this study.
This study was conducted to validate the Yale Food Addiction Scale 2.0 (YFAS 2.0) developed by Gearhardt, Corbin and Brownell (2016) for the measurement of food addiction. For this purpose, 435 adults were recruited from internet cafes, researchers' personal SNS, one university in Daegu and one university in Kyungbuk. The ROC curve was used to adjust the thresholds for each item of the Yale food addiction scale 2.0 to fit the domestic situation. The exploratory factor analysis and the confirmatory factor analysis were conducted to ensure the appropriateness of the factor structure, and the validity and reliability respectively. As a result, first of all, the threshold was changed in 16 of the 35 items. Second, as with the original scale, the single factor structure for 11 symptoms was extracted and the internal consistency was found to be appropriate. As a result of confirmatory factor analysis, it was shown that they had better fit in single factor. Yale food addiction scale 2.0 showed a positive correlation with the Binge Eating Scale (BES) and the general food craving-trait scale (G-FCQ-T). However, unlike previous studies, sub-factors of Three Factor Eating Questionnaire (TFEQ) showed negative correlation with dietary restriction and BMI. Overall, the validated validity, cross validity, and convergent validity of the Yale Food Addiction Scale 2.0 were significant. Finally, the implications and limitations of the study were discussed based on the results of this study.
