[Experimental research on the level classification of occupations].
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Occupations↗
Biomedical subjects
S WIEGERSMA
Publications and source records attributed to S WIEGERSMA.
[Studies on the success of reading instruction in six year old children].
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Achievement↗
[A statistical myth; reply to Prof. Kower].
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Biometry↗
[Frequency tables for scoring in the Behn-Rorschach test].
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Humans↗
[Some observations on the effect of environmental factors on development of intelligence].
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Environment↗
[A variant of the sentimental type].
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Humans↗