Which of the following statements are true about tests of psychomotor abilities? (1 ) their
reliabilities are low; (2 ) the correlations among different tests are low; (3 ) they are highly
susceptible to practice effects.
A) 1 and 3 B) 2 and 3 C) 1 and 2 D) 1, 2, and 3
Question 2
Regarding the relationship of mental ability to race, it has been proven that
A) lower IQs in blacks and whites are due to environment.
B) the mean score of blacks is usually lower than that of whites on intelligence tests that
have not been culturally adjusted.
C) lower IQs in blacks and whites are due to heredity.
D) blacks are genetically inferior to whites in measured ability.
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A diagram showing one of Mendel’s crosses. True-breeding strains of pea plants with smooth and ...