With stepwise multiple regression,there is no need to trim and rerun the regression analysis because SPSS does the trimming automatically based on the stepwise method selected by the researcher.

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Stepwise multiple regression automatically determines the most significant predictor variables to include in the model, and SPSS will remove less significant variables in each step. Therefore, there is no need for the researcher to manually trim and rerun the analysis.

With Stepwise Multiple Regression,there Is No Need to Trim and Rerun