Imp because some sounds are more similar than others. If more, first may have already been miscategorized when 2nd arrives, therefore penalizing judgment re same differ. No consideration given to phonetic context Clinical Potential Benefit of discrim format is that it could say something about what the child regards as discriminablBut this decision is restricted to adult forms as they are processed thru echoic memory. Picture ID Paradigm Description Show child 2-4 pics which differ phonemically and say or play tape of target word Cognitive processing Child makes judgment, but criteria he uses not under control of Examiner. Immune to aud decay and insensitive to allophonic variation.
Child is free to determine criteria for decision.
Require child to make decision re two or more sylls heard in close succession. Child is NOT asked to make decision regarding any relationships to his internal rep. Bec has a referent in view, permits inferences re child's internal rep. Asking if 2 sounds are same or different doesn't ask anything about child's lexical entries. Limitation lies in E's ability to make intruding sound.