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The relation of the reliability of multiple-choice tests to the distribution of item difficulties

โœ Scribed by Frederic M. Lord

Book ID
112724962
Publisher
Springer
Year
1952
Tongue
English
Weight
796 KB
Volume
17
Category
Article
ISSN
0033-3123

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The relation of item difficulty and inte
The relation of item difficulty and inter-item correlation to test variance and reliability
โœ Harold Gulliksen ๐Ÿ“‚ Article ๐Ÿ“… 1945 ๐Ÿ› Springer ๐ŸŒ English โš– 676 KB

Under assumptions that will hold for the usual test situation, it is Laroved that test reliability and variance increase (a) as the average inter-Rein correlation increases, and (b) as the variance of the item difficulty distribution decreases. As the average item variance increases, the test varian