(A) and (B) make different predictions. If (B) is true, people with high IQ will not be particularly good at a new task when they try it for the first time—but then they would improve by application. If (A) is true, people with high IQ will be immediately good at new cognitive tasks (or, at least, much better than people with low IQ).
(A) and (B) make different predictions. If (B) is true, people with high IQ will not be particularly good at a new task when they try it for the first time—but then they would improve by application. If (A) is true, people with high IQ will be immediately good at new cognitive tasks (or, at least, much better than people with low IQ).