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Short-term item memory in successive same–different discriminations
Behavioural Processes, 2006Pigeons were tested in a successive same-different (S/D) discrimination procedure to examine the short-term memory for individual items in sequences of different or identical pictures. Item-by-item analyses of pecking behavior within single trials revealed this S/D discrimination emerged at the earliest possible point in the sequence--the presentation ...
Robert G, Cook, Aaron P, Blaisdell
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Optimal Item Discrimination and Maximum Information for Logistic IRT Models
Applied Psychological Measurement, 1999Items with the highest discrimination parameter values in a logistic item response theory model do not necessarily give maximum information. This paper derives discrimination parameter values, as functions of the guessing parameter and distances between person parameters and item difficulty, that yield maximum information for the three-parameter ...
Veerkamp, W.J.J., Berger, M.P.F.
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Item Form And Item Discriminating Power: An Experimental Study.
1962PhD ; Social psychology ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/185374/2/6202705 ...
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Difficulty and Discriminability of Introductory Psychology Test Items
Teaching of Psychology, 2001We analyzed multiple-choice questions provided in test banks for introductory psychology textbooks. In Study 1, we found that about 70% of students responded correctly to a given item, and there was a significant but inconsistent difference in difficulty across chapter topics.
Charles Scialfa +3 more
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ITEM DIFFICULTY AND DISCRIMINATION AS A FUNCTION OF STEM COMPLETENESS
Psychological Reports, 1991The effects on item difficulty and discrimination of stem completeness (complete stem or incomplete stem) for multiple-choice items were studied experimentally. Subjects (166 junior education students) were classified into three achievement groups (low, medium, high) and one of two forms of a multiple-choice test was randomly assigned to each subject.
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Distractor Analysis Based on Item Difficulty Index and Item Discrimination Index
2019Çoktanseçmeli bir maddenin ölçme aracı içerisindeki performansı belirlenirkenincelenmesi gereken en önemli unsurlardan biri de çeldiricilerin etkinliğidir.Etkin çeldiricilerle oluşturulmuş maddelerin performansları daha yüksekolmaktadır. Bu noktada çeldiricilerin hazırlanma süreci de etkili bir roloynamaktadır.
HASANÇEBİ, Burcu +2 more
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A DISCRIMINATION INDEX FOR CRITERION‐REFERENCED TEST ITEMS
British Journal of Educational Psychology, 1987S ummary . A new index for criterion referenced test items is proposed that takes into account disparity in size of above and below criterion groups (i.e., the score distribution shape).
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Effects of Item Color on Verbal Discrimination Learning
The Journal of General Psychology, 1974Summary Verbal discrimination learning was investigated as a function of the printed color of the items in the list. The subjects received five trials on the same verbal discrimination list and served in one of four experimental groups based on item color: (a) Control, all items printed in black ink; (b) Color Positive, two incorrect items paired with ...
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Relationships Between the Item Difficulty and Discrimination Indexes
Educational and Psychological Measurement, 1979The dependence of the item discrimination index (D) on the item difficulty index ( p), and the relationship of D and p to the phi coefficient (ϕ) are delineated. A table of critical values of D for significance at the .10 and .05 levels, with the number of examinees in the upper group (n, ) on total test score ranging from 10 to 25 and p ranging from .
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Item ambiguity and item discrimination in the MMPI.
Journal of Consulting and Clinical Psychology, 1968James C, Baxter, Kathryn L, Morris
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