Psychological researchers today often use a .05 level of significance for their statistical tests. Who
is credited with first establishing this standard?
A) Sir Francis Galton B) Carl Jung
C) Sir Ronald Fisher D) Wilhelm Wundt
C
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Universal efforts to prevent substance abuse often target
a. drug companies. b. the public. c. the strength of the economy. d. private and public institutional settings.
Suppose that you are reading an article about visual imagery. The researchers point out that experimenter expectancy might have influenced the results of this study. One example of this possibility would be:
a. the participants tried to ruin the researchers' results by refusing to follow directions. b. the participants tried to answer as quickly as possible, so they could leave early. c. the researchers' expectations could have influenced the participants' responses. d. the researchers used a heuristic when trying to explain the results of this study..
How is it possible to prevent the intellectual disabilities that are generally associated with PKU?
a. through exercise b. through diet c. through drugs d. through exposure to bright light
Freud believed that at birth, a child's personality only has the ____
a. id portion c. superego portion b. ego portion d. oral portion