The hierarchical relationship between several visual and auditory discriminations and three verbal operants among individuals with developmental disabilities.


This study examined the relationship between performance on the Assessment of Basic Learning Abilities test (ABLA), two auditory matching tasks, and a test of echoics, tacts, and mands with persons with developmental disabilities. It was found that discrimination skill (visual, auditory-visual, and auditory-auditory discriminations) was a better predictor… (More)


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