Some researchers are looking for other predictors to help account for a greater percentage of criterion variance than what is accounted for by general cognitive ability. Their goal is to demonstrate:

The major disadvantage with repeated-measures designs is that they

a. require too many subjects. b. are less powerful than between-subjects designs. c. have a funny looking summary table. d. are subject to the influence of carry-over effects.

The risks to the fetus from smoking are insubstantial

Indicate whether the statement is true or false