A psychologist wishes to test a behavioral modification therapy that is claimed to improve the behavior of pre-teen autistic children.She randomly selects 20 pre-teen autistic children and exposes half of the group to the behavioral modification therapy while the other half continue with their standard treatment regimen.A standardized behavioral test is administered to each child both before and after his/her respective treatment.The population in this experiment is:
A) all pre-teen autistic children.
B) the behavioral modification therapy.
C) the standardized behavioral test scores.
D) the 20 selected pre-teen autistic children.

Question

Quizplus · Accepted Answer

The population in this experiment is all pre-teen autistic children, as the psychologist wishes to test a behavioral modification therapy on this group. The selected 20 pre-teen autistic children are a sample from this population. The behavioral modification therapy and the standardized behavioral test scores are not the population, but rather the variables being studied.

A Psychologist Wishes to Test a Behavioral Modification Therapy That