If a researcher conducted six t tests, each at the .05 significance level, the chance that at least one test would reach significance would be about __________, even if the null hypothesis were true. (Give a number.)

__________ refer(s) to genetic characteristics that are the result of environmental influences during the prenatal period or during the lifespan that affect how existing genes are expressed

a. Intergenerational effects b. The developmental origins hypothesis c. Epigenetic inheritance d. Comorbid

Which of the following is NOT a problem facing men sexually during middle adulthood?

a) more time to achieve an erection b) endurance decreases c) volume of fluid ejaculated declines d) testosterone declines