Fasting weight was measured on a calibrated scale to the nearest 0.1 kg, and height was measured in triplicate on a stadiometer to the nearest 0.1 cm. BMIz-scores and percentiles were calculated using CDC growth standards to adjust for age and sex (Kuczmarski et al., 2002). Dual-energy x-ray absorptiometry (GE Lunar iDXA, GE Healthcare, Madison WI; software GE enCore 15) was used to measure adiposity.

The Perception of Teasing Scale (POTS) is a 6-item self-report questionnaire assessing the frequency of WBT (Thompson, Cattarin, Fowler, & Fisher, 1995). Participants were asked to rate the frequency of various experiences (e.g., People made fun of you because you were heavy) on a scale from 1= ‘never’ to 5= ‘very often.’ Total scores range from 6 to 30; higher scores indicate greater lifetime frequency of WBT. The POTS has demonstrated validity among non-treatment seeking youth (Jensen & Steele, 2010) and had excellent internal consistency in the current sample (Cronbach’s α= .91).

The Emotional Eating Scale for Children and Adolescents (EES-C) (Tanofsky-Kraff et al., 2007) is a 25-item self-report questionnaire assessing the desire to eat in response to negative emotional states (e.g., stressed out, sad), designed for youths ages 8–18. Higher scores indicate greater emotional eating. The EES-C has demonstrated good convergent validity, discriminant validity, test-retest reliability, and construct validity (Tanofsky-Kraff et al., 2007). The total score, used in the current study, showed excellent internal consistency (α= .97).

The Eating in the Absence of Hunger Questionnaire for Children and Adolescents (EAH-C) is a 14-item self-report questionnaire assessing the frequency with which a respondent begins or continues to eat due to various factors (e.g., food looks, tastes or smells so good) despite a lack of physical hunger (Tanofsky-Kraff et al., 2008). Higher scores indicate greater eating in the absence of hunger. This questionnaire has shown good convergent validity and temporal stability in children and adolescents across weight strata (Tanofsky-Kraff et al., 2008). The total score, used in the current study, showed excellent internal consistency (α= .94).

The Eating Disorder Examination (EDE) (Fairburn, 1993) is a semi-structured clinical interview that assesses eating-related pathology, and yields four subscales (dietary restraint, and eating, shape, and weight concerns) in addition to a global eating pathology score (the average of the subscales) which was used for the present study. The EDE also assesses LOC eating within the past three months. Participants under 12 years were administered the child adaptation (Bryant-Waugh, Cooper, Taylor, & Lask, 1996); the adult and child interviews have been combined successfully in prior studies (e.g., Elliott et al., 2010). The EDE has demonstrated good inter-rater reliability and discriminant validity in youth across weight strata (Glasofer et al., 2007; Tanofsky-Kraff et al., 2004). In the current sample, internal consistency for the global score was excellent (Cronbach’s α= .91).

The Children’s Depression Inventory (CDI) (Kovacs & Beck, 1977) is a widely used 27-item measure of depressive symptoms within the last two weeks for children ages 7–17. Each symptom is presented with three options (e.g., I am sad once in a while / many times / all the time); higher scores indicate greater depressive symptoms. The CDI has demonstrated good discriminant validity and reliability in children (Knight, Hensley, & Waters, 1988), and showed good internal consistency in the current sample (α= .85).

The State-Trait Anxiety Inventory for Children (STAI-C) (Spielberger, Edwards, Lushene, Montuori, & Platzek, 1973) trait subscale is a widely used 20-item self-report measure designed for youths ages 6–14 and commonly used with youth and adolescents through age 18 (Muris, Merckelbach, Ollendick, King, & Bogie, 2002). Participants report the frequency with which they feel anxiety-related symptoms (e.g., I get a funny feeling in my stomach.). Total scores range from 20 – 60; higher values indicate greater anxiety. The STAI-C has demonstrated good internal consistency and test-retest reliability among non-treatment seeking children (Spielberger, 1972) and adolescents (Glasofer et al., 2007), and had good internal consistency in the current study (α= .88).

Scores on the CDI (depression) and STAI-C (anxiety) were standardized and averaged to create a composite negative affect score (Shank et al., 2017).