Distinguish the genetic and environmental factors that can contribute to the development of PTSD.
What will be an ideal response?
Research suggests that there are individuals who are likely more susceptible to developing PTSD than others. For instance, individuals with a particular allele (Val158Met polymorphism) are more likely to develop PTSD when faced with a significant stressor. In addition, past trauma contributes to the likelihood. Individuals with smaller hippocampi may also be at greater risk.
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When social class factors are not taken into consideration, ethnic differences for intelligence test scores seem to follow which pattern?
a. European Americans score above Native Americans who score above Asian Americans. b. African Americans score below European Americans who score below Asian Americans. c. Latino Americans score about the same as European Americans who score above Asian Americans. d. Native Americans score about the same as African Americans who score above Latino Americans.
How does the partial report technique differ from the whole-report technique?
a. The partial report technique presents information for only a very brief time. b. The partial report technique presents each line individually. c. The partial report technique requires the subject to respond with all recalled information. d. The partial report technique requires the subject to respond with only certain items.
Beginning in childhood, one finds that males are superior to females in:
a. abstract reasoning. c. visual-spatial skills. b. mathematics. d. verbal abilities.
The sum of the expected frequencies in a given row equals _____
a. the sum of the expected frequencies in its column b. the sum of the expected frequencies in the other rows c. the grand mean minus the observed frequencies for that row d. the sum of the observed frequencies in the same row