Jane has been diagnosed with bipolar disorder. Which of her relatives has the highest risk for developing the disorder?
a) Her (dizygotic) twin sister
b) Her brother
c) Her daughter
d) All of the above have an equal chance of developing the disorder
d
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Which of the following best summarizes the differences between men's and women's brains in young adulthood?
A) The sex differences that were seen in childhood and adolescence become less pronounced in young adulthood. B) The corpus callosum develops faster in young men than in young women. C) The amount, distribution, and ratio of gray matter to white matter differs considerably between men and women in young adulthood. D) The distribution of glial cells is markedly different between young men and young women.
A study with two groups in a repeated measured design lends itself to what statistical test for comparing means?
a. Correlation b. Descriptive statistics c. Student's t-test d. Chi square