Abstract
This study described the psychometric properties of a self-report measure of functional impairment related to anxiety and depression in adolescents, the Adolescent Life Interference Scale for Internalizing symptoms (ALIS-I). A clinical sample of 266 adolescents and a community sample of 63 adolescents, aged 11 to 18 years (Mean = 14.7, SD = 1.71) completed the ALIS-I and additional measures assessing internalizing problems. Exploratory factor analyses indicated four distinct but correlated factors of life interference related to personal withdrawal/avoidance, peer problems, problems with study/work, and somatic symptoms. Reliability and retest reliability (8–12 weeks) of the total score were high and psychometric properties of the subscales were acceptable. The ALIS-I effectively discriminated between clinical and community control groups, and expected correlations were shown between ALIS-I subscales and other related symptom measures. The ALIS-I is a promising instrument for the assessment of functional impairment related to internalizing disorders in youth.
| Original language | English |
|---|---|
| Pages (from-to) | 508–519 |
| Number of pages | 12 |
| Journal | Child Psychiatry and Human Development |
| Volume | 54 |
| Issue number | 2 |
| Early online date | 16 Oct 2021 |
| DOIs | |
| Publication status | Published - Apr 2023 |
Keywords
- internalizing disorders
- anxiety
- depression
- psychometrics
- assessment
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