Examlex
Compared to the overall population, prostitutes have significantly lower rates of sexually transmitted infections.
Interaction
The effect of two or more variables is not simply additive, but depends on the levels of the other variables.
Factorial ANOVA
A statistical test used to examine the effects of two or more independent variables on a dependent variable, and their interactions, within an experimental design.
Probability Level
The threshold of significance in hypothesis testing, indicating the likelihood that a result is not due to chance.
Main Effect
The direct influence of an independent variable on a dependent variable in an experiment, ignoring other factors or interactions.
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