Development of a Microsoft Excel tool for one-parameter Rasch model of continuous items: an application to a safety attitude survey

doi:10.1186/s12874-016-0276-2

CNU IR > College of Smart Living > Dept. of Hospital and Health (including master's program) > Periodical Articles > Item 310902800/31603

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題名:	Development of a Microsoft Excel tool for one-parameter Rasch model of continuous items: an application to a safety attitude survey
作者:	Chien, Tsair-Wei Shao, Yang Kuo, Shu-Chun
貢獻者:	Chi Mei Med Ctr, Dept Med Res Chia Nan Univ Pharm & Sci, Dept Hosp & Hlth Care Adm Tongji Zhejiang Coll, Dept Elect & Informat Engn Chi Mei Med Ctr, Dept Ophthalmol Chung Hwa Univ Med Technol, Dept Optometry
關鍵詞:	Rasch model Continuous item response Wright's map KIDMAP Visual basic for application
日期:	2017-01-10
上傳時間:	2018-11-30 15:49:52 (UTC+8)
出版者:	Biomed Central Ltd
摘要:	Background: Many continuous item responses (CIRs) are encountered in healthcare settings, but no one uses item response theory's (IRT) probabilistic modeling to present graphical presentations for interpreting CIR results. A computer module that is programmed to deal with CIRs is required. To present a computer module, validate it, and verify its usefulness in dealing with CIR data, and then to apply the model to real healthcare data in order to show how the CIR that can be applied to healthcare settings with an example regarding a safety attitude survey. Methods: Using Microsoft Excel VBA (Visual Basic for Applications), we designed a computer module that minimizes the residuals and calculates model's expected scores according to person responses across items. Rasch models based on a Wright map and on KIDMAP were demonstrated to interpret results of the safety attitude survey. Results: The author-made CIR module yielded OUTFIT mean square (MNSQ) and person measures equivalent to those yielded by professional Rasch Winsteps software. The probabilistic modeling of the CIR module provides messages that are much more valuable to users and show the CIR advantage over classic test theory. Conclusions: Because of advances in computer technology, healthcare users who are familiar to MS Excel can easily apply the study CIR module to deal with continuous variables to benefit comparisons of data with a logistic distribution and model fit statistics.
關聯:	BMC Medical Research Methodology, v.17:4
顯示於類別:	[Dept. of Hospital and Health (including master's program)] Periodical Articles

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