K

Abstract

THE MMPI WAS GIVEN TO 182 SALES REPRESENTATIVES FROM 9 COMPANIES, RANGING FROM BEVERAGE SALES TO BUSINESS FORMS. WITHIN EACH SAMPLE, SS WERE CAST INTO UPPER- AND LOWER-CRITERION GROUPS, BASED UPON SALES MANAGERS' RATINGS. THE 5 UNCORRECTED MMPI SCALES WHICH ARE NORMALLY SUBJECT TO THE K CORRECTION DIFFERENTIATED SIGNIFICANTLY BETWEEN THE CRITERION GROUPS IN THE EXPECTED DIRECTION. THE K SUPPRESSOR VARIABLE, WHEN APPLIED AS INSTRUCTED IN THE PUBLISHER'S MANUAL, ACTUALLY DECREASED VALIDITY. THIS EFFECT WAS CLEARLY STATISTICALLY SIGNIFICANT FOR 3 OF THE SCALES, APPROACHED SIGNIFICANCE FOR 1 SCALE, AND WAS NOT SIGNIFICANT FOR THE FINAL SCALE. (PsycInfo Database Record (c) 2025 APA, all rights reserved)