Factor validity and reliability of the aberrant behavior checklist-community (ABC-C) in an Indian population with intellectual disability.
The Telugu ABC-C works well for Indian adults with ID.
01Research in Context
What this study did
Cox et al. (2015) translated the Aberrant Behavior Checklist-Community into Telugu.
They gave the new form to caregivers of Indian adults with intellectual disability.
The team ran a confirmatory factor analysis and checked reliability three ways.
What they found
The five-factor structure held up in the Indian sample.
Internal consistency, test-retest, and inter-rater reliability were all good.
The Telugu ABC-C is ready for clinical use.
The study found positive results.
How this fits with other research
Sappok et al. (2017) did the same kind of check on the Social Communication Questionnaire in adults with ID.
Both studies used confirmatory factor analysis and found the original factor structure still fits.
McIntyre et al. (2017) also translated a Western scale into an Asian language and got similar reliability numbers.
Goodwin et al. (2012) remind us that questionnaires like the QABF are helpful but should not replace direct observation.
Why it matters
If you serve Telugu-speaking adults with ID, you now have a valid behavior checklist.
Use it to track irritability, lethargy, stereotypy, hyperactivity, and inappropriate speech.
Pair it with a functional tool like the QABF to get both topography and function.
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02At a glance
03Original abstract
BACKGROUND: In this study realised in collaboration with the department of psychology and parapsychology of Andhra University, validation of the Aberrant Behavior Checklist-Community (ABC-C) in Telugu, the official language of Andhra Pradesh, one of India's 28 states, was carried out. METHODS: To assess the factor validity and reliability of this Telugu 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 Lebenshilfe Institution for Mentally Handicapped in Visakhapatnam, Andhra Pradesh, India. Rating data were analysed with a confirmatory factor analysis. The internal consistency was estimated by Cronbach'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 Tucker Lewis 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. Spearman'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 Telugu version of the ABC-C evidenced factor validity and reliability comparable to the original English version and appears to be useful for assessing behaviour disorders in Indian people with intellectual disabilities.
Journal of intellectual disability research : JIDR, 2015 · doi:10.1111/jir.12128