When he began drinking alcohol,Patrick would drink two beers after work to feel relaxed.Six months later,Patrick needs to drink a six-pack of beer to feel the same level of relaxation.This illustrates:
A)drug tolerance.
B)withdrawal.
C)a placebo effect.
D)expectancy effects.

Question

Quizplus · Accepted Answer

The scenario described exemplifies drug tolerance, which occurs when a person needs higher doses of a substance over time to achieve the same effect. In this case, Patrick needs more beer to feel relaxed, suggesting that his body has become tolerant to the effects of alcohol.

When He Began Drinking Alcohol,Patrick Would Drink Two Beers After