Social Studies, 08.10.2019 02:00 xscape0mari

Na laboratory, smokers are asked to drive using a computerized driving simulator. they are asked to cover the maximum distance possible, while avoiding rear-end collisions. some volunteers are given a real cigarette to smoke immediately before the test. others are given a fake cigarette without nicotine. the number of collisions the two groups make will be compared. in this study, the cigarette without nicotine is a(n):
dependent variable.
placebo.
double-blind procedure.
hypothesis.

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