If a researcher discovers that a variable that is not of interest in a study may be affecting the dependent variable, that researcher
a. can rule out causal ambiguity.
b. should invoke the temporal precedence rule.
c. has identified a possible extraneous variable.
d. should use a double blind study to overcome the problem.
c
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What is it called when the fetus's head appears at the outer opening of the vagina?
a. birth b. transition c. delivery d. crowning
Suppose that Peter hates his job as a medical assistant. Research on the panic button effect would suggest that Peter would hate his job less if ____
a. he felt that could quit at any time and get a different job b. he thought about how much unhappier he would be if he lost his job and became homeless c. he considered how much his job helped to relieve people's stress and discomfort d. he thought about how he would feel if he were rushed to the hospital and there was no one there to help him