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Child Behavior Checklist 6–18

Child Behavior Checklist 6–18

The CBCL 6–18 [56] was assessed with a sample of ASD youth in two papers [51, 67]. Pandolfi, Magyar and Dill [51] found internal consistency was good with r = 0.92 for the aggressive behaviour scale, but I found no evidence concerning reliability. Structural validity for the complete measure was good and analysis supported the original two-factor structure of the CBCL 6–18 (internalizing and externalising factors). Tests of unidimensionality of scales did not reach the cut off for acceptable fit for aggressive behaviour (RMSEA = 0.10, CFI = 0.95); however, convincing arguments were provided to allow for correlated disturbances in the model for two item pairs (destroys own things/destroys others things and disobedient at home/disobedient at school). This adjusted model showed an acceptable fit (RMSEA<0.06, CFI>0.95). Criterion validity was assessed by Pandolfi, Magyar and Dill [51] by comparing ASD children with and without a co-occurring emotional/behavioural difficulty. Children with a co-occurring EBD scored significantly higher than those without EBDs on total problems, though there were no significant differences between the two groups for aggressive behaviour or externalising behaviour as the most common co-occurring EBDs in the sample were anxiety disorders. Kuhlthau et al [67] hypothesised that externalising behaviours would be more strongly associated with quality of life than internalising behaviours in children with ASD, but this was not supported.

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