Spanish Validation of the Child Anxiety Life Interference Scale (CALIS-C): Psychometric Properties, Factorial Structure and Factorial Invariance Across Gender

The Child Anxiety Life Interference Scale (CALIS-C) is a measure created to specifically identify life interference and impairment related to children's anxiety disorders in areas of daily functioning. Despite being a widely used scale, a Spanish version of the CALIS-C is not available. The purpose of this study was to adapt and validate the CALIS-C for Spanish-speaking children. We examined the CALIS-C factorial structure, factorial invariance across gender, and psychometric properties in a community sample of 336 (46.7% girls) Spanish-speaking children aged 8-12 years. Confirmatory factor analysis provided support for the original two-factor model. Excellent internal consistency coefficients were found for the total scale (0.88) and the subscales (0.85 and 0.82). 8-week test-retest reliability was moderate (IC = 0.51). Evidence of convergent and divergent validity was found, and factorial invariance across gender was reached. The current study provides initial support for the use of the CALIS-C with Spanish-speaking children by clinicians and researchers.