Descriptor
| Age Differences | 1 |
| Difficulty Level | 1 |
| Exceptional Child Research | 1 |
| Mental Retardation | 1 |
| Object Manipulation | 1 |
| Play | 1 |
| Preschool Education | 1 |
Source
| American Journal of Mental… | 1 |
Author
| Switzky, Harvey N. | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
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Peer reviewedSwitzky, Harvey N.; And Others – American Journal of Mental Deficiency, 1979
Three-dimensional random polygon objects ranging in complexity between four and 40 turns were presented to the Ss, and time spent in exploration and play was measured over three successive exposure-time blocks. (Author/DLS)
Descriptors: Age Differences, Difficulty Level, Exceptional Child Research, Mental Retardation
