In which of the following is a history threat least likely to occur?
A) Experimental and control groups are in the same classroom.
B) Experimental and control groups are in different classes in the same school.
C) Experimental and control groups are in different schools.
D) Experimental and control groups are limited only to females.

Question

Quizplus · Accepted Answer

A history threat refers to external events that occur during the course of a study that could affect the outcome. When experimental and control groups are in the same classroom, they are exposed to the same external events or historical context, making a history threat less likely to impact the differences between the groups' outcomes.

In Which of the Following Is a History Threat Least