Dr.Subing conducted a research experiment investigating the effect of ceiling fans on water consumption in laboratory rats.She was able to control for almost every factor that would influence the rats' desire to drink water,so in the end she had a lot of confidence that the dependent variable (water consumption)was caused exclusively by the independent variable (ceiling fans).In statistical terms,this project has high __________ validity.
A) Internal
B) Construct
C) Predictive
D) Criterion

Question

Quizplus · Accepted Answer

Internal validity refers to the degree to which a study accurately reflects the relationship between the independent and dependent variables, while controlling for other potential influences. Since Dr. Subing was able to control for almost every factor that could influence the rats' water consumption, the experiment has high internal validity. Construct validity refers to whether a study measures what it intends to measure, predictive validity refers to the ability of a study to predict future outcomes, and criterion validity refers to the extent to which a study's results correspond to an established external criterion. While these are all important types of validity, they are not the most relevant for this experiment's specific methodology and goals.

DrSubing Conducted a Research Experiment Investigating the Effect of Ceiling