It is always desirable to have comprehensive, rather than limited-range, theories

Tawanda is a typical American who is in the stage of late adulthood and has 3 children. Statistically speaking, one can assume that she speaks with at least one of her children _____

a. several times a week b. one hour a month c. once a week d. daily

If a pregnancy test can detect pregnancy within two weeks after fertilization, it most likely works by:

a. detecting the hormone human chorionic gonadotropin in the woman's urine b. detecting a rise in the woman's body temperature from 98.6 to about 99.3 c. detecting the presence of a much higher percentage of alpha brain waves during the woman's sleep cycles d. detecting a dramatic increase in the acidity of the woman's urine