06.02.2015 Views

Educability-and-Group-Differences-1973-by-Arthur-Robert-Jensen

Educability-and-Group-Differences-1973-by-Arthur-Robert-Jensen

Educability-and-Group-Differences-1973-by-Arthur-Robert-Jensen

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

276 <strong>Educability</strong> <strong>and</strong> <strong>Group</strong> <strong>Differences</strong><br />

(the median difference being 12 IQ points) favoring the white<br />

pupils (<strong>Jensen</strong> & Rohwer, 1970, pp. 86-9). This test, however, is<br />

not a very good measure of g (as indicated <strong>by</strong> correlations of only<br />

0-4 to 0-5 with Raven’s matrices) <strong>and</strong> may be more culturally<br />

loaded than some tests of g which show larger Negro-white<br />

differences. (A review of other studies of Negro-white differences<br />

on the Draw-a-Man test is provided <strong>by</strong> Shuey, 1966, pp. 24-7;<br />

83-4.)<br />

NOTE<br />

1. Sattler’s summary: ‘Katz <strong>and</strong> his co-workers’ series of studies show<br />

that white testers in comparison with Negro testers do not necessarily<br />

impede the performance of Negro college subjects. Negro testers<br />

obtained significantly higher scores than white testers when the<br />

probability-of-success conditions informed the college subjects that<br />

they had little or an equal chance of equaling the white norm; white<br />

testers obtained significantly higher scores than Negro testers under<br />

certain conditions <strong>and</strong> with certain groups (e.g., motor instructions<br />

<strong>and</strong> hard digit-symbol task; digit-letter substitution <strong>and</strong> mild threat;<br />

college students with satisfactory high school averages in any probability<br />

of success condition)’ (p. 143).

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!