Reply to Humphreys and to Jensen

Replies to L. G. Humphrey's (see PA, Vol 56:Issue 2) and A. R. Jensen's (see PA, Vol 56:Issue 2) criticisms of the authors' study on the effects of verbal strategy training on race differences in nonverbal reasoning test performance. The authors agree with Humphrey's argument that significant interactions cannot be proven with nested designs, although it is pointed out that his suggestion that there were large numbers of low-scoring Ss in both groups who did not understand the directions is misleading, since it ignores the other low scorers who were merely inefficient problem solvers. It is also argued that Jensen's implication that demonstrations of training effects are irrelevant for conclusions about racial genetic differences or the absence of such differences is incorrect because successful training logically eliminates the possibility of genetic inabilities.