Browsing by Subject "ability distribution"

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The Effect of Sample Size and Different Ability Distribution on Item Parameters Utilizing Three Logistic Model

AL-Kursheh, Taha O. (2018-12-04)

This study aimed at verifying the effect of Sample Size and the ability distribution (normal, positive and negative skewed) on item parameters, To achieve the aim of the study, generating responses to the nine groups of ...
The Estimation Accuracy of True Scores at Different Degrees of Local Dependence Among Test Items for Different Ability Distributions

Abu Shindi, Yousef A.; Alemhrizi, Rashid S.; Omara, Ehab M. (2018-09-03)

The study aimed to investigate the effect of local depdendence among items on the estimation of true scores under different frequency distribution for examinees’ ability. The study used randomly twelve data sets; each with ...

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