STATISTICAL TECHNIQUES AND TOOLS
MULTIPLE REGRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Variable selection methods generally work by selecting IVs in a sequential fashion based on ____
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the IVs zero-order correlation with the DV
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the IVs residual after all other IVs have been used to predict it
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the IVs semi-partial correlation with the DV
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the increase in the adjusted
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Explanation:
Detailed explanation-1: -Some commonly used methods for selecting variables in logistic regression include forward selection, backward elimination, stepwise selection, best subset selection, purposeful selection, tabu search, and Bayesian model averaging.
Detailed explanation-2: -Difference between Partial and Semipartial Correlation Partial correlation holds variable X3 constant for both the other two variables. Whereas, Semipartial correlation holds variable X3 for only one variable (either X1 or X2). Hence, it is called ‘semi’partial.
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