A researcher investigates the relationship between teaching style and student achievement in elementary school teachers. Since she is concerned that gender might be a confounding factor in her study, she includes only female teachers. The control technique she used was:
A) Holding the extraneous variable constant
B) Statistical control
C) Matching
D) Random assignment

Question

Quizplus · Accepted Answer

By including only female teachers, the researcher is holding the extraneous variable (gender) constant, thus controlling for its potential confounding effect.

A Researcher Investigates the Relationship Between Teaching Style and Student