__________ is an experiment in which neither the participants nor the individuals running the experiment know if participants are in the experimental or the control group until after the results are tallied
a) The double-blind study
b) Field research
c) The single-blind study
d) Correlational research
Answer: A
Psychology
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This theory is based on the premise that sleep evolved to keep humans out of harm's way
a) restorative theory of sleep b) melatonin theory of sleep c) circadian theory of sleep d) ecobehavioral theory of sleep
Psychology
One leading humanistic psychologist, who assumed the existence of an actualizing tendency at the biological level, is
a. Freud d. Erikson c. Fromm d. Rogers
Psychology