Rasch Analysis of Repeated MeasuresThomas Eckes
The amount of measurement error indexed by the standard error of measurement (SEM) indicates the precision of individual scores over repeated measures. SEM was calculated by multiplying the sample standard deviation (SD) at baseline by the square root of 1 minus the test–retest reliability ...
The vast majority of health- related research that has used IRT relate to the develop- ment and evaluation of measures for health status and quality of life, and only a handful of articles have reported the use of IRT approaches in the analysis of scales developed to measure patient ...
C.A., and Stoeckel, J.J. (2005). NAEP 1999 Long-Term Trend Technical Analysis Report: Three...
Conventional overall scoring of the PC-PART involves summation of Not OK responses to produce a total score, producing ordinal data. There is an important and clinically relevant distinction between the PC-PART and other ADL measures. Commonly used ADL instruments in Australia, such as the FIM [...
Four psychometric scales are commonly used to assess aspects of TIC beliefs; however, each of these measures has limitations pertaining to application to carers (e.g., Colton & Xiong, 2010). Colton and Xiong's scale identifies deficits in staff TIC beliefs, with a focus on restraint and secl...
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The analysis of the data using Extension 3 (Eq. (6)) teaches us that, as expected, the effect per additional attempt is lower for students who use a higher number of attempts. Let us consider the example in which we calculate the expected probability of the correct response from the first...
什么是Rasch模型？Rasch模型是由丹麦数学家与教育学家G.Rasch于1960年提出来的一个用来测量潜在特质的...
It measures a conceptual understanding of Newton’s laws of motion with the following three factors (at least at the posttest; the factor analysis for the pretest is undefined): (1) “Newton’s first and second law, including acceleration,” (2) “Newton’s third law,” and (3) “...