Bob is conducting research on high school students' motivation.He believes one group of students is more motivated than another simply because they are in an honors class.This belief illustrates a(n)
A) single-blind.
B) placebo effect.
C) ceiling effect.
D) experimenter bias.

Question

Quizplus · Accepted Answer

Experimenter bias occurs when the researcher's beliefs or expectations about the outcome of a study influence their interpretation of the results. In this case, Bob's belief that students in honors classes are more motivated may bias his interpretation of any differences he observes between the two groups of students.

Bob Is Conducting Research on High School Students' Motivation