Researchers often make claims regarding the importance of predictor variables in multiple regression analysis by comparing standardized regression coefficients (standardized beta coefficients). This practice has been criticized as a misuse of multiple regression analysis. As a remedy, I highlight the use of dominance analysis and random forests, a…

Reports on a study of the influence of cognitive/affective variables on the second language learning ability of adults. Two variables, field independence and ambiguity tolerance, were found to be significant predictors of English as a second language proficiency for international students studying in the United States. (SED)