Bejar, Isaac I.2011-03-222011-03-221983Bejar, Isaac I. (1983). Subject matter experts' assessment of item statistics. Applied Psychological Measurement, 7, 303-310. doi:10.1177/014662168300700306doi:10.1177/014662168300700306https://hdl.handle.net/11299/101711This study was conducted to determine the degree to which subject matter experts could predict the difficulty and discrimination of items on the Test of Standard Written English. It was concluded that despite an extended training period the raters did not approach a high level of accuracy, nor were they able to pinpoint the factors that contribute to item difficulty and discrimination. Further research should attempt to uncover those factors by examining the items from a linguistic and psycholinguistic perspective. It is argued that by coupling linguistic features of the items with subject matter ratings it may be possible to attain more accurate predictions of item difficulty and discrimination.enArticle