Examlex
As rough rule of thumb,if the absolute value of the studentized residual for an observation is greater than ______,then it is concluded that there is some evidence that the observation is an outlier.
Double-blind Study
A research experiment in which neither the participants nor the experimenters know who is receiving a particular treatment, eliminating bias in the results.
Dependent Variable
In an experiment, it is the variable being tested and measured, and is thought to be influenced by the independent variable.
Independent Variable
The variable in an experiment that is manipulated or changed by the researcher to observe its effects on the dependent variable.
Placebos
Inactive substances or treatments used in controlled experiments to test the effectiveness of another substance or treatment.
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