Postpartum depression is more likely in women who
a. were depressed before pregnancy.
b. wanted to become pregnant.
c. have the support of other adults after the baby is born.
d. have particularly low levels of hormones in the later phases of pregnancy.
a
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Sarah, a graduate student in psychology, just heard about a
five-year-old child who has already learned calculus. She is thinking about doing an in-depth study of the child for her dissertation because such early-life math skill is so rare. Sarah is considering which research method? A) Naturalistic observation B) Experiment C) Independent study D) Case study
If a 100ml solution contained 50% alcohol, what is the proof of the solution?
a. 100 proof b. 50 proof c. 25 proof d. Cannot be determined from the information provided.
Which distance zone extends from about 18 inches to four feet from the body and basically keeps people within "arm's reach" of each other?
a. personal b. social c. intimate d. public
Estimated effect sizes are very useful for ______.
a. significance testing b. computing p-values c. subject effects d. meta-analyses