Additional Research Reports To view all research reports released by GMAC, visit the GMAC Research Library. Questions? Contact Us We at GMAC conduct ongoing research on the reliability and accuracy of the GMAT® exam and related testing methodologies used in high-stakes testing environments. These reports examine issues such as test design, bias measurement, and the impact of changes in test methodology. An Approach to Assembling Optimal Multistage Testing Modules on the Fly (2013) An Evaluation of Intellimetric™ Essay Scoring System Using Responses to GMAT AWA Prompts (2005) Assessing the Reliability of GMAT Analytical Writing Assessment (2009) Computer Adaptive Testing for Small Scale Programs and Instructional Systems (2011) Consider Propensity Scores to Compare Treatments (2006) Differential Impact as an Item Bias Indicator in CAT- and other IRT-Based Tests (2006) Evaluating Analytical Writing for Admission to Graduate Business Programs (2011) Evaluating Scale Stability of a Computer Adaptive Testing System (2005) Examinees Retaking the GMAT® Exam (2005) Examining Test Speededness by Native Language (2012) Expected Classification Accuracy Using Latent Distributions (2006) Exploring Potential Quantitative Item Bias Across Groups (2007) Fairness of Automated Essay Scoring of GMAT AWA (2009) GMAT® Analytic Rubric Study Report (2006) Guess Again: The Effect of Correct Guesses on Scores in an Operational CAT Program (2011) Guess What? Score Differences with Rapid Replies versus Omissions on a Computerized Adaptive Test (2009) Potential Impact of Item Parameter Drift Due to Practice and Curriculum Change on Item Calibration in Computerized Adaptive Testing (2011) Scaling Item Difficulty Estimates from Nonequivalent Groups (2009) Use of the GMAT Analytical Writing Assessment: Past and Present (2006) When Are Grades No Longer Valid? A Look at the Effect of Time on the Usefulness of Previous Grades (2009) Top of page
