| An instructor’s guide to understanding test reliability CS Wells, JA Wollack Testing & Evaluation Services University of Wisconsin, 2003 | 334 | 2003 |
| Item parameter estimation under conditions of test speededness: Application of a mixture Rasch model with ordinal constraints DM Bolt, AS Cohen, JA Wollack Journal of Educational Measurement 39 (4), 331-348, 2002 | 245 | 2002 |
| A mixture item response model for multiple-choice data DM Bolt, AS Cohen, JA Wollack Journal of Educational and Behavioral Statistics 26 (4), 381-409, 2001 | 191 | 2001 |
| An investigation of the likelihood ratio test for detection of differential item functioning AS Cohen, SH Kim, JA Wollack Applied Psychological Measurement 20 (1), 15-26, 1996 | 157 | 1996 |
| Handbook of quantitative methods for detecting cheating on tests GJ Cizek, JA Wollack Routledge, 2016 | 155 | 2016 |
| A nominal response model approach for detecting answer copying JA Wollack Applied psychological measurement 21 (4), 307-320, 1997 | 139 | 1997 |
| Recovery of item parameters in the nominal response model: A comparison of marginal maximum likelihood estimation and Markov chain Monte Carlo estimation JA Wollack, DM Bolt, AS Cohen, YS Lee Applied psychological measurement 26 (3), 339-352, 2002 | 111 | 2002 |
| Test Administration, Security, Scoring AS Cohen, JA Wollack Educational measurement, 355, 2006 | 101 | 2006 |
| Handbook of test security JA Wollack, JJ Fremer Routledge, 2013 | 73 | 2013 |
| A speeded item response model with gradual process change Y Goegebeur, P De Boeck, JA Wollack, AS Cohen Psychometrika 73 (1), 65-87, 2008 | 73 | 2008 |
| A method for maintaining scale stability in the presence of test speededness JA Wollack, AS Cohen, CS Wells Journal of Educational Measurement 40 (4), 307-330, 2003 | 71 | 2003 |
| Detection of answer copying with unknown item and trait parameters JA Wollack, AS Cohen Applied psychological measurement 22 (2), 144-152, 1998 | 57 | 1998 |
| Comparison of answer copying indices with real data JA Wollack Journal of Educational Measurement 40 (3), 189-205, 2003 | 52 | 2003 |
| An Instructor’s Guide to Understanding Test Reliability, Testing and Evaluation Services CS Wells, JA Wollack Madison: university of Wisconsin, 2003 | 37 | 2003 |
| Simultaneous use of multiple answer copying indexes to improve detection rates JA Wollack Applied Measurement in Education 19 (4), 265-288, 2006 | 35 | 2006 |
| Detection of test collusion using cluster analysis JA Wollack, DD Maynes Handbook of quantitative methods for detecting cheating on tests, 124-150, 2016 | 34 | 2016 |
| Detecting test tampering using item response theory JA Wollack, AS Cohen, CA Eckerly Educational and Psychological Measurement 75 (6), 931-953, 2015 | 32 | 2015 |
| Application of a multidimensional nested logit model to multiple-choice test items DM Bolt, JA Wollack, Y Suh Psychometrika 77, 339-357, 2012 | 32 | 2012 |
| On the use of nonparametric item characteristic curve estimation techniques for checking parametric model fit YS Lee, JA Wollack, J Douglas Educational and Psychological Measurement 69 (2), 181-197, 2009 | 30 | 2009 |
| Defining error rates and power for detecting answer copying JA Wollack, AS Cohen, RC Serlin Applied Psychological Measurement 25 (4), 385-404, 2001 | 30 | 2001 |
