Some scholars suggest a link between cognitive development and contraception use

According to the discussion of comparable worth,

a. jobs traditionally occupied by males usually pay more than jobs traditionally occupied by females, even if the "female" jobs require more education or experience. b. the most important factor to be used in calculating comparable worth is the salary that the individual worker has requested. c. the argument of comparable worth was relatively successful in US and Canadian courts during the 1990s. d. comparable-worth legislation would actually end up lowering women's salaries relative to men.

Dr. V wanted to test her hypothesis that sugar improves memory, so she gave one group of participants candy sweetened with sugar and another group candy sweetened with NutraSweet. Then she compared the performance of the two groups on a test of recognition memory. Dr. V's research method is ____.?

a. ?dependent b. ?experimental c. ?descriptive d. ?naturalistic