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:: Volume 2, Issue 4 (2023) ::
Sci J Iranshahr Univ Med Sci 2023, 2(4): 1001-1005 Back to browse issues page
Can Lawshe and Polit be fitted in one seat? Methodological misconceptions in instrument development
Hojjat Shafaee1, Mohammad Rajabpoor2, Amir Mirhaghi *3
1- Department of Prehospital Emergency Care, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
2- Nursing and Midwifery Care Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
3- Assistant Professor of Nursing, Nursing and Midwifery Care Research Center, Mashhad University of Medical Sciences, Mashhad, Iran , mirhaghia@mums.ac.ir
Abstract:   (241 Views)
Introduction: Instrument development plays an important role in the methodological design among the studies. The aim is to provide a clear understanding of the key steps in the instrument development process.
Methods: A scoping literature review was performed to find instrumentation development approaches. Key search terms were instrumentation, instrument development and content validity. Electronic databases including PubMed and Scopus was searched up to Sep 2022. No additional filter was used. Abstracts were screened to retrieve relevant papers.
Results: Seven major instrument development approach were retrieved and summarized. Common misconceptions were i) use more than one scale to stratify clarification or clarify items after content validity phase; ii) use item impact score to report face validity or perform face validity after content validity phase; iii) use both CVI and item impact score to quantify content validity; iv) poor report of CVI of scale and v) using alpha Cronbach as a measure of reliability.
Conclusion: It is necessary to strictly follow steps in instrument development process and ensure content validation of scale. It is recommended that premature theoretical framework, redundancy to stratify face validity or content validity, using alpha Cronbach as great lower bound to assess reliability and small sample size to assess reliability assessment must be addressed in the instrumentation studies.
 
Keywords: Content validity, instrument development, methodology, qualitative, reliability
     
Article Type: Analytic Review | Subject: Biochemistry
Received: 2022/11/7 | Accepted: 2023/12/8 | Published: 2023/12/19
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Shafaee H, Rajabpoor M, Mirhaghi A. Can Lawshe and Polit be fitted in one seat? Methodological misconceptions in instrument development. Sci J Iranshahr Univ Med Sci 2023; 2 (4) :1001-1005
URL: http://sjiums.irshums.ac.ir/article-1-92-en.html


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Volume 2, Issue 4 (2023) Back to browse issues page
مجله علمی علوم پزشکی Scientific Journal of Medical Sciences
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