Results 251 to 260 of about 467,824 (303)

Development of a 15-Item Odour Discrimination Test (Düsseldorf Odour Discrimination Test)

Perception, 2012
A key function of the olfactory system is the detection of differences in odour quality. Therefore, a test was developed to assess odour discrimination ability in normosmic humans. Out of six monomolecular substances (capric acid, coumarin, eugenol, geraniol, phenylethyl alcohol, and vanillin) quaternary mixtures were prepared.
Roland, Weierstall, Bettina M, Pause
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Two Generalizations of the Item Discrimination Index to Multi-Score Items

The Journal of Experimental Education, 1971
Two general item analysis indices which apply to multi-score items are developed as generalizations of a popular index applicable to dichotomous items. The indices of discrimination are of two types: one based on differential difficulty and the other on net number of positive discriminations. The usefulness and limitations of each are discussed.
Douglas R. Whitney, Darrell L. Sabers
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Discrimination and Uniformity of Test Item Distracters

Psychological Reports, 1968
It is demonstrated that the item discrimination index (d) and an index of the uniformity of the distribution of choices of distracters (U) provide useful information about the effectiveness of distracters on multiple-choice items.
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Convergent and Discriminant Validity in Item Analysis

Educational and Psychological Measurement, 1978
Described is an alternative algorithm for item analysis in which item discrimination indices have been defined for item distractors in addition to their traditional definition for the scored alternative. Also, the Campbell and Fiske concept of convergent and discriminant validity was reconceptualized from the test to the item level and proposed as an ...
David J. Krus, Robert G. Ney
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Discovering discriminative test items for achievement tests

Expert Systems with Applications, 2012
One of the essential goals of test designing is to select items with the most discriminative power. In the past, most research has assumed there is no dependent relationship among test items, so that test papers are often produced by selecting items with individual discriminations.
Yu-Chin Liu, Po-Jung Chen
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Item Discrimination: When More Is Worse

Journal of Educational Measurement, 1988
High item discrimination can be a symptom o f a special kind of measurement disturbance introduced by an item that gives persons o f high ability a special advantage over and above their higher abilities. This type o f disturbance, which can be interpreted as a form o f item “bias,” can be encouraged by methods that routinely interpret highly ...
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SIMILARITY OF VARIOUS ITEM DISCRIMINATION INDICES

Journal of Educational Measurement, 1976
Although certain methods of determining item discrimination appear to be used more frequently than others, measurement specialists fail to agree as to which method is most appropriate. For example, Guilford (1965) and Nunnally (1967) argued in favor of the point-biserial r on the basis that it tells more about the contribution of a particular item to ...
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16PF Items Discriminating Recidivists and Long-Term Recovered Polyaddicts

International Journal of the Addictions, 1986
Responses to 65 of the 187 items on Cattell's 16PF test were skewed by 83 members of Alcoholics Anonymous. Seventeen of those items had significantly different distributions when the 18 recidivists were compared to the 8 who had remained clean of all addictive substances and compulsive behaviors during the 2-year period studied.
D R, Tuite, J W, Luiten
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The Development of Constant Items for Speech Discrimination Testing

Journal of Speech and Hearing Research, 1968
Subjects were English-speaking adults with hearing impairment. Etiology of hearing loss did not enter into selection. Consonant errors were observed on speech discrimination test lists employing a closed-set response system. Fifteen subjects were employed for the first list and 20 each for the remaining four lists, with an occasional subject serving in
E, Owens, E D, Schubert
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Learning as a Function of Haptic Discriminability among Items

The American Journal of Psychology, 1984
In Experiment 1, braille symbols for the letters A-J were found to be more haptically discriminable from one another than braille symbols for the letters K-T. In Experiment 2, subjects learned the names for the A-J symbols faster than for the K-T symbols.
S E, Newman, A D, Hall, D J, Foster, V, Gupta   +3 more
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