Factor validity and reliability of the A berrant B ehavior C hecklist‐ C ommunity ( ABC ‐ C ) in an I ndian population with intellectual disability

• Published in: Journal of intellectual disability research Vol. 59; no. 3; pp. 208 - 214
• Main Authors: Lehotkay, R., Saraswathi Devi, T., Raju, M. V. R., Bada, P. K., Nuti, S., Kempf, N., Carminati, G. Galli
• Format: Journal Article
• Language: English
• Published: 01.03.2015
• ISSN: 0964-2633; 1365-2788
• DOI: 10.1111/jir.12128

Abstract Background In this study realised in collaboration with the department of psychology and parapsychology of A ndhra U niversity, validation of the A berrant B ehavior C hecklist‐ C ommunity ( ABC ‐ C ) in T elugu, the official language of A ndhra P radesh, one of I ndia's 28 states, was carried out. Methods To assess the factor validity and reliability of this T elugu version, 120 participants with moderate to profound intellectual disability (94 men and 26 women, mean age 25.2, SD 7.1) were rated by the staff of the L ebenshilfe I nstitution for M entally H andicapped in V isakhapatnam, A ndhra P radesh, I ndia. Rating data were analysed with a confirmatory factor analysis. The internal consistency was estimated by C ronbach's alpha. To confirm the test–retest reliability, 50 participants were rated twice with an interval of 4 weeks, and 50 were rated by pairs of raters to assess inter‐rater reliability. Results Confirmatory factor analysis revealed that the root mean square error of approximation ( RMSEA ) was equal to 0.06, the comparative fit index ( CFI ) was equal to 0.77, and the T ucker L ewis index ( TLI ) was equal to 0.77, which indicated that the model with five correlated factors had a good fit. Coefficient alpha ranged from 0.85 to 0.92 across the five subscales. S pearman's rank correlation coefficients for inter‐rater reliability tests ranged from 0.65 to 0.75, and the correlations for test–retest reliability ranged from 0.58 to 0.76. All reliability coefficients were statistically significant ( P  < 0.01). Conclusion The factor validity and reliability of T elugu version of the ABC ‐ C evidenced factor validity and reliability comparable to the original E nglish version and appears to be useful for assessing behaviour disorders in I ndian people with intellectual disabilities.