_____ is a regression procedure in which the predictor variables enter or leave the regression equation one at a time.
A) Forward selection
B) Backward elimination
C) Stepwise selection
D) Ad hoc selection
E) Random elimination

Question

Quizplus · Accepted Answer

Stepwise selection is a regression procedure in which the predictor variables enter or leave the regression equation one at a time. It starts with no predictor variables in the equation, then adds variables in a stepwise fashion based on statistical significance or some other predetermined criterion, and may also remove variables that no longer meet the criterion. Forward selection and backward elimination are variations of stepwise selection, but may lead to different models and thus are not interchangeable with stepwise selection. Ad hoc and random elimination do not refer to commonly used regression procedures.

_____ Is a Regression Procedure in Which the Predictor Variables