Social status and abstract behavior.

"The contention that 'intelligence' tests are biased against lower-class children was investigated by testing lower- and middle-status children of similar IQs with block-sorting (abstract behavior) problems. These problems involved only 4 relatively simple concepts found to be equally familiar to the 2 groups. It was hypothesized that lower-status subjects are actually brighter than their IQs indicate, and that their performance on the blocksorting problems would be superior to that of middle-status Ss of similar IQ. The hypothesis was not confirmed; middle-status Ss were significantly superior to lower-status Ss." (PsycINFO Database Record (c) 2010 APA, all rights reserved)