You read in a psychology journal that the authors of an article have conducted a meta-analysis. You conclude that they have
a. analyzed the variety of independent variables that would probably influence the dependent variable they are studying.
b. conducted a study with at least 100 participants.
c. located previous studies on a topic and then statistically combined the results of those studies in order to determine an overall effect.
d. interviewed at least 20 experts in the appropriate field and compared their opinions on a particular topic.
Ans: c
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Beals et al. (2005) found that Native Americans living in the Northern Plains and the Southwest area of the United States had the most prevalent diagnosis for mental health issues such as:
a. Post Traumatic Stress Disorder c. lower prevalence of depression b. higher prevalence of substance abuse d. all of the above
After Phineas Gage's accident in which a metal rod entered his brain, the doctors kept notes on his behavior, used tests to measure various responses, and interviewed Phineas and those who knew him. His brain injury was studied using a(n)
a. ablation. b. clinical case study. c. ESB. d. functional analysis.
When two variables interact
a. the effect of one variable depends on the level of the other b. the main effect cannot be interpreted without discussing the interaction c. the effect of one variable does not depend on the level of the other d. both a and b
From 1990 to 2007 the percentage of women receiving prenatal care increased by
A) 2%. B) 4%. C) 8%. D) 6%.