+
+Jensen—
+> the test must measure, in addition to the construct it purports to measure,
+some other characteristic or factor that is completely uncorrelated with the construct and on which the major group, on the average, exceeds the minor group A typical example is the case in which the major and minor groups differ in their native language. A person’s native language is presumably not correlated with the construct of intelligence. If the test involves the native language of the major group exclusively and the minor group has a different language, the test will most likely be positively biased in favor of the major group. In other words, the test is measuring something (in this case a specific language) in addition to the construct that it purports to measure, which condition favors the major group
+
+https://en.wikipedia.org/wiki/Black_Intelligence_Test_of_Cultural_Homogeneity
+
+Draw-a-Horse Pueblo
+
+> That is, the order of item difficulties should be expected to differ between racial groups.
+
+> the items that discriminate most between whites and blacks are the same items that discriminate most between older and younger children within each racial group.
+
+> In general, for children and adults alike, it is found that those test items that best discriminate individual differences in general mental ability among whites are the same items that best discriminate differences in general ability among blacks, and they are also the same items that discriminate the most between whites and blacks.
+
+> Gordon and Rudert (1979)
+
+> The effect of black dialect as compared with standard English on the IQs of black lower-class children was investigated in three studies by Quay (1971, 1972, 1974), who had the Stanford-Binet translated into black ghetto dialect by a linguistics specialist in black dialect. No significant difference (the difference actually amounts to less than 1 IQ point) was found between the nonstandard dialect and standard English forms of the Stanford-Binet when administered by two black Es to one hundred black children in a Head Start program in Philadelphia (Quay, 1971).
+
+> For example, in the United States only about 9 percent of physicians and dentists are women, whereas in the Soviet Union the figure is close to 50 percent.
+
+