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Reproduce the multiple regression model where Math SAT is regressed on PctTake b
Reproduce the multiple regression model where Math SAT is regressed on PctTake but now include an interaction term. To reproduce the result in the textbook, you need to recode Pct30: 1 represents the subgroup with PctTake ? 30% and 0 represents the subgroup with PctTake > 30%. Next, create a new variable called Interaction by multiplying PctTake x Pct30. Enter these three variables into your multiple regression model as independent variables.
Attach your SPSS output and interpret/explain the interaction term, but only if the p-value for the interaction term is statistically significant. Incidentally, in Psychology quantitative research literature the interaction term is known as a moderation effect.
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