Jews almost always score above average in old studies, with mean IQs coming in at around 105 when measured by Weschler's or 115+ on the Stanford Binet. Even when samples do extraordinarily well overall they tend to be poor at tests of drawing:https://journals.sagepub.com/doi/abs/10.2466/pr0.1977.41.1.155 …
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"A Comparative Study of the Intelligence of Jewish and Scandinavian Schoolchildren" (1944), finds comparable total scores but large subtest differences. Scandos excel at the spatial ball and field test, biggest Jewish advantage is in.....counting pennies https://scihubtw.tw/10.1080/08856559.1944.10533254 …
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The ball and field test has the test taker draw a circle on a sheet of paper: the circle is a field of grass where your baseball has landed and you have to plan a strategy to find it quickly: high marks are given for walking in columns or a spiral.
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