Effects of vibratory, edible, and social reinforcement on performance of institutionalized mentally retarded individuals

K. Ottenbacher, R. Altman

Research output: Contribution to journalArticle

3 Scopus citations


The relative effectiveness of verbal praise, vibration, and edible reward as methods of enhancing and maintaining performance on a perceptual-motor task was investigated. Sixty-six mentally retarded students were divided into high- and low-MA groups and randomly assigned to reinforcement conditions. Data analysis revealed that response rates for the low-MA students in the verbal condition reinforcement and the nonreinforcement phases were significantly lower than the response rates for the low-MA students in any phase of the edible or vibratory conditions. No significant difference in reinforcer effectiveness was observed across various phases for students in the high-MA groups.

Original languageEnglish (US)
Pages (from-to)201-204
Number of pages4
JournalAmerican Journal of Mental Deficiency
Issue number2
StatePublished - Jan 1 1984


ASJC Scopus subject areas

  • Psychiatry and Mental health

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