Don Powers
Educational Testing Service
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Publication
Featured researches published by Don Powers.
Educational and Psychological Measurement | 2010
Yigal Attali; Don Powers
Two experiments examine the psychometric effects of providing immediate feedback on the correctness of answers to open-ended questions, and allowing participants to revise their answers following feedback. Participants answering verbal and math questions are able to correct many of their initial incorrect answers, resulting in higher revised scores. In addition, the reliability of these scores is significantly higher than the reliability of scores based on no feedback. Finally, anxiety is significantly lower following a test section with feedback and revision.
ETS Research Report Series | 1998
Don Powers; Mel Kubota; Jill Bentley; Marisa Farnum; Rich Swartz; Ann E. Willard
ETS Research Report Series | 1998
Don Powers; M. Kubota; J. Bentley; Marisa Farnum; R. Swartz; Ann E. Willard
ETS Research Report Series | 2005
Pamela L. Paek; Eva Ponte; Irv Sigel; Henry Braun; Don Powers
Journal of Multidisciplinary Evaluation | 2009
Eva Ponte; Pamela Paek; Henry Braun; Catherine Trapani; Don Powers
ETS Research Report Series | 1995
Jane Faggen; Gerald J. Melican; Don Powers
ETS Research Report Series | 2008
Yigal Attali; Don Powers
ETS Research Report Series | 2008
Yigal Attali; Don Powers; John Hawthorn
ETS Research Report Series | 2008
Yigal Attali; Don Powers; Marshall Freedman; Marissa Harrison; Susan Obetz
College Board | 2008
Pamela L. Paek; Henry Braun; Catherine Trapani; Eva Ponte; Don Powers
Collaboration
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