Hi, a few of the others and I were confused on which order the IVs should be entered. Some argued 1 to 3, because it says "addition", and some argued 3 to 1, because age and gender were "over and above". Thank you.
Actually, both "addition" and "over and above" indicate the same order. Another way of thinking about "over and above" is "beyond the original." So the first step is your first predictor. Then the additional predictors added after that in subsequent steps are expected to improve the model "over and above" the original one.
As for Erika's question, "over and above" means it "adds to the predictability taken along with the other predictors." The order of your steps depends on theory and the question you're trying to ask. Sometimes, you want to enter in the "best" predictors first. Other times, you want to enter the nuisance variables you want to control for first.
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Actually, both "addition" and "over and above" indicate the same order. Another way of thinking about "over and above" is "beyond the original." So the first step is your first predictor. Then the additional predictors added after that in subsequent steps are expected to improve the model "over and above" the original one.
As for Erika's question, "over and above" means it "adds to the predictability taken along with the other predictors." The order of your steps depends on theory and the question you're trying to ask. Sometimes, you want to enter in the "best" predictors first. Other times, you want to enter the nuisance variables you want to control for first.
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