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In response to Senator Joseph McCarthy's anticommunist attacks, President Eisenhower
SSB
The sum of squares between groups, a measure used in analysis of variance to compare the variance between different groups' means.
SST
A statistical measure in analysis of variance, representing the total variation in a dataset (Sum of Squares Total).
Factorial Research Designs
Experimental designs that allow researchers to examine the effects of two or more independent variables on a dependent variable, as well as the interaction effects between variables.
Interaction Effect
The effect on a dependent variable that arises from the combination of two or more independent variables, rather than from any single variable.
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