The technique to improve internal validity is D) Addition of a control group.
<h3>What is
internal validity?</h3>
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
Pluto because it is so small or the sun if you count that because it is the hottest thing in the entire universe
Answer:
Explanation:
War forces women to enter the labor market more massively and with that, women were gradually able to find a place of work, because in the war, as men were needed to work, but most were in the war, women served as a workforce, this opened up a greater space for them, to encourage them to continue making space in the market.