Describe two of the methods for studying genetic influences. What can they tell us and what are their limitations?

What will be an ideal response?


The family history method observes relatives of a person with a disorder to see if the likelihood of having the disorder increases in proportion to the closeness of the biological relationship. This is compared to the likelihood of developing the disorder without any relative with the disorder. This method doesn't control for the effects of the environment. The twin method compares identical and fraternal twins. If identical twins have a higher concordance rate than fraternal, there is evidence that the disorder has a genetic component. However, this may be misleading because it is possible that identical twins are treated more similarly than fraternal twins. The adoption method follows people with a disorder who give their babies up for adoption or examines the biological and adoptive parents of adoptees with disorders. If there is a genetic component, the rates should be higher in the biological parent-child pair than the adoptive parent-adoptive child pair. These are difficult to do unless adoption is open and the biological parents are known. GRADING RUBRIC - 10 points. 5 points for each part.

Psychology

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The Stanford prison study ended _____ days early

A) 4 B) 6 C) 8 D) 9

Psychology

Emotion emphasizes

a. stress. b. energy. c. desire. d. traits. e. arousal.

Psychology

When pairs of participants played a competitive game, and researchers told one member of each pair that the other was either hostile or friendly, the players who were led to believe that their partner was hostile behaved ________

a. differently than players who were led to believe that their partner was friendly, and their partner's behavior actually became more hostile b. differently than players who were led to believe that their partner was friendly, but their partner's behavior did not change c. no differently than players who were led to believe that their partner was friendly, and their partner's behavior did not change d. no differently than players who were led to believe that their partner was friendly, but their partner's behavior actually became more hostile

Psychology

Band of nerve fibers connecting the right and left hemispheres of the brain.

What will be an ideal response?

Psychology