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The validity of Graduate Management Admission Test (GMAT) scores is examined by summarizing 273 studies conducted between 1997 and 2004. Each of the studies was conducted through the Validity Study Service of the test sponsor and contained identical variables and statistical methods. Validity coefficients from each of the studies were corrected for restriction of range on the predictors. The interquartile range of the validity coefficients for the combination of GMAT scores and undergraduate grades in predicting early graduate school performance was .45 to .63. Further examination of study findings showed that higher validity coefficients were observed for executive MBA programs compared to either full-time or part-time programs. There appeared to be no measurable differences in results for public versus private institutions. For programs not located at U.S. institutions, quantitative scores showed lower average validity coefficients compared to programs located in the United States. [ABSTRACT FROM AUTHOR]

Admissions data and first-year grade point average (GPA) data from 11 graduate management schools were analyzed to evaluate the predictive validity of Graduate Management Admission Test® (GMAT®) scores and the extent to which predictive validity held across sex and race/ethnicity. The results indicated GMAT verbal and quantitative scores had substantial predictive validity, accounting for about 16% of the variance in graduate GPA beyond that predicted by undergraduate GPA. When these scores and undergraduate GPA were used together, they accounted for approximately 25% of the variation in first-year graduate GPA. Correcting correlations for restriction of range improved the predictive power. No statistical differences were found across examinee groups defined by race/ethnicity and sex, which suggests a lack of bias in these scores. The predictive utility of GMAT analytical writing scores was relatively low, accounting for only about 1% of the variation in graduate GPA, after accounting for undergraduate GPA and GMAT verbal and quantitative scores. [ABSTRACT FROM AUTHOR]