This study compares effects of an early childhood instructional program--designed to develop auditory and visual perception skills by stressing differential diagnosis, prescriptive suggestions and concomitant procedures--with programs typically found in nursery schools. Treatment group consisted of twelve paired on intelligence, auditory and visual perception scores. Treatment group split in two, each receiving instruction engaging weaker sense modality, mainly visual for one, mainly auditory for the other. Statistical analysis revealed significantly higher scores on both perceptual indices for the treatment groups. Study suggests need to focus upon modification of behaviors basic to learning (e.g. perception) and catering to the specificity of learner inadequacies. (Author)