When Mr.Marlboro begins to self-record the number of cigarettes he smokes each day, his frequency of smoking decreases.This phenomenon is referred to as
A)adaptation.
B)unreliability.
C)observer bias.
D)reactivity.

Question

Quizplus · Accepted Answer

This phenomenon is referred to as reactivity, which occurs when individuals alter their performance or behavior due to the awareness that they are being observed. In this case, Mr. Marlboro's awareness of self-recording his smoking behavior leads to a decrease in the frequency of smoking.

When MrMarlboro Begins to Self-Record the Number of Cigarettes He Smokes