Examlex
Which of the following statements is true regarding hyperactivity?
Confounding Variable
An outside influence that changes the effect of a dependent and independent variable being examined in an experimental or observational study.
Independent Variable
A variable in an experiment that is manipulated or changed by the researcher to observe its effects on the dependent variable.
Covaries
When two variables change in relation to each other, suggesting a potential relationship or correlation between the two.
Double-Blind Procedure
A research or testing method in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.
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