GMATkey: Key of Correct Answers for 'GMATtest' Data Set

Description Usage Format Author(s) References See Also


The GMATkey is a vector of factors representing correct answers of generated GMATtest data set based on Graduate Management Admission Test (GMAT) data set (Kingston et al., 1985).




A data frame with 20 values representing correct answers to items of GMATtest data set. For more details see GMATtest.


Adela Drabinova
Institute of Computer Science, The Czech Academy of Sciences
Faculty of Mathematics and Physics, Charles University
[email protected]

Patricia Martinkova
Institute of Computer Science, The Czech Academy of Sciences
[email protected]


Kingston, N., Leary, L., & Wightman, L. (1985). An Exploratory Study of the Applicability of Item Response Theory Methods to the Graduate Management Admission Test. ETS Research Report Series, 1985(2) : 1-64.

Martinkova, P., Drabinova, A., Liaw, Y. L., Sanders, E. A., McFarland, J. L., & Price, R. M. (2017). Checking equity: Why Differential Item Functioning Analysis Should Be a Routine Part of Developing Conceptual Assessments. CBE-Life Sciences Education, 16(2),

See Also


difNLR documentation built on May 4, 2018, 5:04 p.m.