n a 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.

According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question the cigarette without nicotine is a placebo. This term refers to a substance that has no chemical effects and is given to a patient or test subject instead of the actual drug, in order to compare the effects that it has to the individual in comparison to the effects of the individuals that take the actual drug. Which is what the researcher are doing in this scenario as they test the reactions that nicotine has on individuals with those that just think they are smoking a cigarette.

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