01299nas a2200145   4500008003900000022001400039245009100053210006900144300001300213490000700226520083800233100002101071700002001092856004101112       2016                          d  a1745-398400aModeling Student Test-Taking Motivation in the Context of an Adaptive Achievement Test0 aModeling Student TestTaking Motivation in the Context of an Adap  a86–1050 v533 aThis study examined the utility of response time-based analyses in understanding the behavior of unmotivated test takers. For the data from an adaptive achievement test, patterns of observed rapid-guessing behavior and item response accuracy were compared to the behavior expected under several types of models that have been proposed to represent unmotivated test taking behavior. Test taker behavior was found to be inconsistent with these models, with the exception of the effort-moderated model. Effort-moderated scoring was found to both yield scores that were more accurate than those found under traditional scoring, and exhibit improved person fit statistics. In addition, an effort-guided adaptive test was proposed and shown by a simulation study to alleviate item difficulty mistargeting caused by unmotivated test taking.1 aWise, Steven, L.1 aKingsbury, Gage  uhttp://dx.doi.org/10.1111/jedm.12102