Why Might So Few Studies Demonstrate an Effect of the Examiner's

Multiple Choice

Why might so few studies demonstrate an effect of the examiner's race on intelligence test performance?

A) Intelligence tests are culture fair; this prevents any possible impact of examiner race.
B) Special administration methods are used when the examiner and test-taker are of different races.
C) While early studies did not find an effect of race,more recent studies show consistent and substantial effects of race.
D) The standardized test administration methods typical of intelligence tests may minimize the effects of racial differences.