Post date: Nov 17, 2016 2:52:30 PM
Abstract: Different versions of the same test are typically equated so that scores can be similarly interpreted over time. Likewise, different versions of the same test may need to be equated. For instance, the Nonverbal Stroop Card Sorting Task (NSCST; Koch and Roid, 2012) is a manual card sorting task. Although computerized version of the task simulate the NSCST, the response time results are different (Koch and Hotovec, 2012). Two of the most frequently accepted methods for equating are linear and equipercentile equating. These two methods of equating are compared for the NSCST using a sample (n = 30) of middle schoolers. Administration order of the NSCST and the computer tablet version of the test was randomized across participants. The two tests were equated based on raw scores and verified using standardized scores. Overall, the equipercentile method produced the best fit. Implications for equating performance measures are discussed.
Poster presented at the 46th Annual Meeting of the Society for Computers in Psychology