Open AccessTHE STABILITY OF THE SCORE SCALES FOR THE SAT REASONING TEST ™ FROM 2005 TO 2010
Author(s) -
Guo Hongwen,
Liu Jinghua,
Curley Edward,
Dorans Neil
Publication year - 2012
Publication title -
ets research report series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.235
H-Index - 5
ISSN - 2330-8516
DOI - 10.1002/j.2333-8504.2012.tb02297.x
Subject(s) - equating , test score , scale (ratio) , stability (learning theory) , statistics , test (biology) , mathematics , econometrics , psychology , standardized test , computer science , geography , machine learning , cartography , rasch model , paleontology , biology
This study examines the stability of the SAT Reasoning Test ™ score scales from 2005 to 2010. A 2005 old form (OF) was administered along with a 2010 new form (NF). A new conversion for OF was derived through direct equipercentile equating. A comparison of the newly derived and the original OF conversions showed that Critical Reading and Mathematics score scales have experienced, at most, a moderate upward scale drift (no greater than 5 points on average), and the drift may be explained by an accumulation of random equating errors. The Writing score scale has experienced a significant upward scale drift (11 points on average), which may be caused by sources other than random equating errors.