Which of the following is the independent variable in a study that investigates the impact of religious environments on discipline problems in children?

Which of the following is true with respect to sexual orientation?

A. A large proportion of individuals have at least one homosexual experience, especially in adolescence. B. Bisexuality is more common among males than among females. C. Homosexual individuals tend to have many more sexual partners than heterosexuals. D. Researchers now believe that there is little need to understand heterosexuality, seeing it is considered the "base" sexual orientation.

Noah, age three, was born to a teenage mother. According to research, Noah is more likely than his counterparts who were born to older mothers to

A. have a mother who is less competent in her child-rearing skills. B. have behavioral problems. C. score poorly on intelligence tests. D. All of these choices are correct.