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Articles 1 - 4 of 4
Full-Text Articles in Education
The Essential Process In A Family Of Measurement Models, Geoff Masters, Benjamin Wright
The Essential Process In A Family Of Measurement Models, Geoff Masters, Benjamin Wright
Prof Geoff Masters AO
Five members of the Rasch family of latent trait models which have appeared more or less independently in the literature are brought together and identified as one model. In addition to sharing the distinguishing characteristic of the dichotomous Rasch model separable person and item parameters and hence sufficient statistics all five models share a common algebraic form and have as their basic element the fundamental process defined by Rasch's simple logistic expression. In these models, the sufficient statistics for person and item parameters are counts of events constructed to be indicative of the variable being measured, and the measures they …
Measuring Attitude To School With A Latent Trait Model, Geoff Masters, N Hyde
Measuring Attitude To School With A Latent Trait Model, Geoff Masters, N Hyde
Prof Geoff Masters AO
A latent trait model for rating scales is used to ana lyze responses to an attitude-to-school questionnaire as part of an evaluation of projects operating in 10 West ern Australian schools under the Australian Priority Schools Program. The invariance of item parameter estimates over the 10 schools is examined, and varia tions in item estimates from school to school are stud ied in the light of the different projects operating in these schools. Results show how the investigation of items that do not retain their difficulties from group to group can provide valuable insight into the ways in which calibration …
Dicot: Analysing Classroom Tests With The Rasch Model, Geoff Masters
Dicot: Analysing Classroom Tests With The Rasch Model, Geoff Masters
Prof Geoff Masters AO
A computer program (DICOT) for the Rasch analysis of classroom tests is described. Results are presented in a simple, self-explanatory form, and person ability and item difficulty estimates are expressed in a metric like the one with which teachers and parents are already familiar. Person and item fit statistics provide an opportunity to diagnose strengths and weaknesses of individual children and to identify items which are problematic.
Constructing An Item Bank Using Partial Credit Scoring, Geoff Masters
Constructing An Item Bank Using Partial Credit Scoring, Geoff Masters
Prof Geoff Masters AO
A method for banking test items scored in several ordered response categories is described. Each item is seen as an ordered sequence of steps, and test forms are equated using the estimated difficulties of the steps in their shared items. Procedures for analyzing the internal consistency of individual links and for analyzing the coherence of an entire linking structure are described. The methodology is used to link six forms of a mathematics problem solving test.