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| Adolescents | 1 |
| Attention Span | 1 |
| Exceptional Child Research | 1 |
| Institutionalized Persons | 1 |
| Mental Retardation | 1 |
| Performance Factors | 1 |
| Responses | 1 |
| Young Adults | 1 |
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| Griffin, James Craig | 1 |
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Download full textGriffin, James Craig; And Others
Twelve educable or trainable Ss, 14 to 22 years of age, who were institutionalized residents of a state school for the retarded, were examined in a simple vigilance test to determine effects of knowledge-of-results (KR) contingent upon correct responses. Each S in the KR group was instructed to press a switch upon seeing a light signal and to…
Descriptors: Adolescents, Attention Span, Exceptional Child Research, Institutionalized Persons
