The mechanical ability of subnormal boys.
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| Iaith: | Saesneg |
| Cyhoeddwyd: |
New York
Teachers College, Columbia Univ.
1937
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Eitemau Tebyg: The mechanical ability of subnormal boys.
- Measurements of mechanical ability
- Mechanical Ability of deaf children.
- Relationships between expressed preferences and curricular abilities of ninth grade boys.
- A comparative study of subnormal children in the elementary grades.
- A comparative study of the progress of subnormal pupils in the grades and in special classes
- Boy Roman