What two factors are thought to underlie the secular trend in which the age of menarche dropped from about age 16-17 to age 13 between the 1840’s and the 1960’s in several Western nations?
What will be an ideal response?
Answer: The secular trend is thought to be due to a reduction in the effects of disease and improved nutrition over this period of time.
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If you are like the average person, you can expect to reach the peak of your physical performance in your
a. late teens. b. twenties. c. early thirties. d. late thirties. e. early forties.
Research by Hubel and Wiesel on visual deprivation in cats demonstrated that
a. visual deprivation led to permanent vision loss in both kittens and adult cats. b. visual deprivation led to permanent vision loss in kittens and but not adult cats. c. visual deprivation led to permanent vision loss in adult cats but not kittens. d. visual deprivation had no long-term impact on either kittens nor adult cats.
The main causal model of eating disorders given by your text emphasizes , , and factors
a. internal; external; subjective b. genetic; cognitive; behavioral c. neurological; physiological; psychosocial d. biological; psychological; sociocultural
Which of the following statements about adolescent depression is true?
A) Serious depression affects 15 to 20 percent of U.S. teens. B) Boys are more likely than girls to report a depressed mood—a difference sustained throughout the lifespan. C) The stereotypical view of adolescence as a period of storm and stress leads many adults to minimize the seriousness of adolescent depression. D) Heredity plays little to no role in adolescent depression.