Barb examines the impact that sitting in front of a mirror has on the academic performance of female adolescents. In her study, the number of math questions answered correctly appears to be the ____ variable

"People who have relationship difficulties clearly have unresolved unconscious issues that remain from difficult experiences during childhood," a researcher hypothesizes

What is the basic error of this hypothetical statement? a. It is too subjective, and may be based on the researcher's own personal issues. b. It is not based on any specific, clearly stated problem. c. The researcher's hypothesis cannot be proven or disproven and thus is not open to scientific inquiry. d. The hypothesis has been presented before any empirical data was collected to verify it.

Which of the following statements about adolescent sexuality is FALSE?

A) In general, African American adolescents have a higher rate of sexual intercourse than do adolescents from other ethnic groups. B) The earlier a girl experiences menarche, the younger she will likely be when she first has intercourse. C) Parents who are excessively strict have children who are less sexually active. D) Gender differences in sexual motivations decrease in late adolescence.