In a classic study of language development, Roger Brown chose three children to study and sampled their language every 2 weeks beginning when they were approximately 2 years old. This is an example of which research design?

Regarding castration in sexually experienced adults, which of the following statements is FALSE?

a. Castration includes the procedures known as the vasectomy and the tubal ligation. b. At first after castration, some people experience a loss of sex drive; while with others there is no change. c. Several years after castration, almost all subjects report a decrease in sex drive unless they take hormone supplements. d. Castration of sex offenders is not likely to curb their behavior.

The development of dating

a. follows a predicable sequence. b. varies greatly by individual. c. varies based upon the sex of the adolescent. d. varies depending upon the age at which the adolescent begins dating.