Results 231 to 240 of about 1,035,632 (292)

Rasch Analysis of General Self-Efficacy Among Individuals with Intellectual Disabilities. [PDF]

Behav Sci (Basel)
Park EY.
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Co-Designing Mobile Serious Games to Support Patients With Psoriatic Arthritis and Chronic Pain: Mixed Methods Study.

JMIR Serious Games
Ramalho B, Gomes S, Silva Vicente M, Magalhães F, Gonçalves Costa R, Gama S, Charisis V, Hadjileontiadis L, B Dias S, iPROLEPSIS Consortium.   +9 more
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An Item Response Model with Internal Restrictions on Item Difficulty

Psychometrika, 1998
An IRT model based on the Rasch model is proposed for composite tasks, that is, tasks that are decomposed into subtasks of different kinds. There is one subtask for each component that is discerned in the composite tasks. A component is a generic kind of subtask of which the subtasks resulting from the decomposition are specific instantiations with ...
Butter, R., de Boeck, P., Verhelst, N.D.
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Estimating Item Difficulty

2019
To estimate the difference in difficulty between two dichotomous items the equation conditioning on the total score and eliminating the person parameter is applied. In the solution equation, the proportion of persons who have answered one item correctly and the other incorrectly is an estimate of the probability of answering that item correctly, given ...
David Andrich, Ida Marais
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Difficulty Scaling of Recognition Items

Psychometrika, 1967
Usual system: take as scale value the normal deviate corresponding to the area p″ = (p − p0)/(1 − p0), where p is the proportion of correct answers and p0 is the chance proportion. If p ≦ p0, the item difficulty is unscalable. Proposed system: take as scale value the normal deviate corresponding to the area p′ = px, with x so chosen that p′ = .5 when p
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Item Writer Judgments of Item Difficulty Versus Actual Item Difficulty: A Case Study

Language Assessment Quarterly, 2011
This study investigates how accurate one item writer can be on item difficulty estimates and whether factors affecting item writer judgments correspond to predictors of actual item difficulty. The items were based on conversational dialogs (presented as videos online) that focus on pragmatic functions.
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Summarizing Item Difficulty Variation with Parcel Scores

Journal of Educational Measurement, 2008
A new method for analyzing differential item functioning is proposed to investigate the relative strengths and weaknesses of multiple groups of examinees. Accordingly, the notion of a conditional measure of difference between two groups (Reference and Focal) is generalized to a conditional variance.
Camilli, Gregory, De La Torre, Jimmy, Vargas, Sadako, Chiu, Ting W., Lindquist, Mary M., Dossey, John A., Prowker, Adam   +6 more
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