When Grandpa Was A Boy, Were There Any Dinosaurs?

Retarded Youngsters

1926: Writing in the Journal of Experimental Psychology, Florence Goodenough established a rough correlation between the amount of English spoken in immigrant households in the United States, and the intelligence of children from those households. Correlation and causation are not the same thing, however, and Goodenough cast doubt on the possibility that “the use of a foreign language in the home” might be “one of the chief factors in producing mental retardation as measured by intelligence tests”.

Source: Journal of Experimental Psychology, October 1926

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