Barbara is concerned about her husband's premature ejaculation, which occurs before she reaches orgasm. Which of the following phases of the sexual response cycle is problematic in Barbara's husband?

Boys are most likely to outnumber girls in a class designed for students gifted in:

a. reading. b. speech. c. mathematics. d. a foreign language.

To make a hypothesis logical, we provide __________; to make it concrete, we provide

__________ of each concept in the hypothesis. A) theory; operational definitions B) study variables; theory C) independent variables; dependent variables D) operational definitions; speculation