Question

Which of the following is a technique to improve internal validity

Answer 1

The technique to improve internal validity is D) Addition of a control group.

What is internal validity?

Internal validity  serves as the  study  which bring about the establishment of a trustworthy cause-and-effect relationship  that can be found in treatment and an outcome.

it should be noted that  Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.

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COMPLETE QUESTOIN:

Which of the following is a technique to improve internal validity ____________?

A) Experimenter expectancy

B) Participant bias

C) Use of a confederate

D) Addition of a control group