Which of these is NOT a possible explanation for obtaining null results in a valid experiment?
a. the levels of the independent variable are too similar to each other.
b. the experimenter used a valid and reliable measure of the dependent variable.
c. the manipulation of the independent variable was unsuccessful..
d. the dependent variable is subject to a floor effect.
B
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A. social facilitation B. informational influence C. altruism D. deindividuation
__________ challenged laws regarding contraception and created the National Birth Control League
A. Katherine Dexter McCormack B. nSusan B. Anthony C. Margaret Sanger D. Anthony Comstock
Which of the following theories of emotion most explicitly recognizes the importance of the cognitive component of emotion?
A. the Schachter-Singer theory B. the James-Lange theory C. the cognitive-mediational theory D. the Cannon-Bard theory
A mutation in the FMR1 gene causes ______.
A. fragile X B. Down syndrome C. hydrocephaly D. fragile Y