Which of the following is NOT a threat to the internal validity of an experiment?
a. Experimenter effects.
b. Demand characteristics.
c. Confounding variables.
d. Within-groups design.
d. Within-groups design.
Psychology
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Recently, Russian cosmonauts found that bone health could be reasonably maintained up to what period of time if vigorous exercise in the form of treadmill walking and running was maintained while in space?
A. 3 months B. 6 months C. 9 months D. 1 year E. 1.5 years
Psychology
What shift rotation pattern is recommended by chronobiologists?
a) days to nights to evenings b) days to evenings to nights c) evenings to days to nights d) evenings, then naps only across the day, then day shift
Psychology