ویژگی‌های روان‌سنجی و تعیین نقاط برش مقیاس نارضایتی از بدن در جمعیت نوجوانان ایرانی

نویسندگان
زهرا قدوسی
سارا آزادی
فاطمه نعمتی سوگلی‌تپه
دانشگاه تبریز
چکیده
هدف پژوهش حاضر اعتباریابی مقیاس تصویری نارضایتی از بدن (BDS) و ارزیابی روایی، پایایی و کارایی مؤلفۀ بدن واقعی ادراک‌ شده (PAB) آن در تمایز طبقات وزنی در جمعیت نوجوانان ایرانی بود. بدین منظور، ۲۸۱ نوجوان (میانگین سن= 80/1 ± 94/15 سال؛ 61% دختر) مقیاس‌های نارضایتی از بدن (BDS)، نگرانی از تصویر بدن (BICI)، فرم کوتاه خوردن هیجانی (EES-C) و شاخص تودۀ بدنی (BMI) را تکمیل کردند. یافته‌ها بیانگر آن بود که BDSاز روایی همگرای مطلوبی برخوردار است؛ به‌طوری‌که نمره‌های آن با BICI و زیر‌مقیاس‌های آن همبستگی مثبت و معناداری نشان دادند. روایی همزمان نیز با ارتباط BDS و EES-C در میان دختران مورد تأیید قرار گرفت. در ارزیابی روایی گروه‌های شناخته‌شده، مؤلفۀ PAB به‌طور خطی با افزایش BMI بالا رفت و میان گروه‌های وزنی تفاوت معناداری مشاهده شد. به‌علاوه، تحلیل منحنی ROC نشان داد که PAB در تمایز نسبی کمبود وزن دقتی قابل قبول (77/0 در دختران، 74/0 در پسران) و در افتراق اضافه‌وزن/چاقی دقتی خوب تا عالی (82/0 در دختران، 86/0 در پسران) دارد. نقاط برش تجربی برای کمبود وزن ≤ 3 در دختران و ≤ 4 در پسران و برای اضافه‌وزن/چاقی ≥ 6 تعیین شد. همچنین، مؤلفۀ PAB می‌تواند به‌عنوان شاخصی مقدماتی برای بررسی الگوهای ادراک بدنی مرتبط با وضعیت وزنی، به‌ویژه در شرایطی که دسترسی به اندازه‌گیری‌های آنتروپومتریک محدود است، مورد استفاده قرار گیرد.
کلیدواژه‌ها
نارضایتی از بدن
اعتبارسنجی
مقیاس تصویری
شاخص تودۀ بدنی
نوجوان

عنوان مقاله English

Psychometric Properties and Cutoff Points of the Body Dissatisfaction Scale in an Iranian Adolescent Population

نویسندگان English

zahra Ghoddousi
Azadi
Nemati-Sogolitappeh
چکیده English

This study aimed to validate the Body Dissatisfaction Scale (BDS) and evaluate its validity, reliability, and diagnostic accuracy among Iranian adolescents across BMI categories. A total of 281 adolescents (mean age = 15.94 ± 1.80 years; 61% girls) completed the BDS, the Body Image Concern Inventory, the short form of the Emotional Eating Scale for Children, and provided their Body Mass Index (BMI). The findings indicated that the BDS demonstrated satisfactory convergent validity, as scores were positively correlated with the BICI and its subscales. Concurrent validity was supported by the significant relationship between the BDS and EES-C among girls. Known-groups validity was supported, as PAB scores increased with higher BMI, showing significant differences between weight categories. ROC analysis revealed that PAB had acceptable accuracy in distinguishing underweight and good-to-excellent accuracy for overweight/obesity. Cutoff points were ≤ 3 for underweight in girls, ≤ 4 in boys, and ≥ 6 for overweight/obesity. Test–retest reliability was excellent among girls and good among boys. Overall, the findings confirmed that the BDS is a valid, reliable, and efficient tool for assessing body dissatisfaction among Iranian adolescents and can serve as a useful screening measure when direct measurement of height and weight is not feasible.

کلیدواژه‌ها English

Body dissatisfaction
Validation
figure rating scale
body mass index
adolescents
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