If subjects know which group theyare in, the research is not
A) random
B) controlled
C) double-blind
D) significant
C
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One formula for the correlation between two dichotomous variables is
a. Spearman's rank order formula. b. the point biserial correlation. c. the phi coefficient. d. the biserial correlation.
Consider the findings from the study on stress and the immune system. On a college campus, when would students be most susceptible to catching a cold?
a. just after returning from Spring Break b. the second week of the semester c. finals week, when there are many exams and papers due d. during summer break
Research on flashbulb memories finds that ______________
Fill in the blank(s) with the appropriate word(s).
Which type of study mostly takes place over a relatively short period, a year or less, although some studies have followed their samples over an entire lifetime, from infancy to old age?
a) longitudinal b) cross-sectional c) survey d) cohort