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Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals

Mohamed Sherif Sirajudeen, Padmakumar Somasekharan Pillai, Umama Nisar Shah, Nagarajan Mohan.

Abstract
Objectives: The objective of this study is to establish the Content validity and inter-rater reliability of an instrument (Checklist) to assess ergonomic practice of Computer professionals using a rigorous Judgment-quantification process and Intra-class correlation coefficient respectively.

Methods and Measures: The Draft Checklist composed of 43 items related to Working Postures, Seating, Keyboard/Mouse, Monitor, Table and Accessories and finally Rest breaks and Exercises. A panel of 9 experts validated the Draft Ergonomic Practice Checklist. The Content Validity Index (CVI) was calculated after receiving all correspondence regarding content validity for each item of the checklist. Finally, a Focus group was held to evaluate the instrument for overall comprehensiveness. A total of 20 computer professionals both males and females of mean age of 33.8 years participated in the inter-rater reliability study. The raters of this study were 2 Physiotherapy faculties with mean clinical and teaching experience of 7.5 years. Both the raters assessed the ergonomic practice of the computer professionals using the checklist. Observations were recorded independently and not discussed among the raters.

Analysis: The Content Validity Index (CVI) was calculated by tallying the results of the experts based on the degree to which the experts agree on the relevance and clarity of the items. Intraclass correlation coefficient was used to assess the inter-rater reliability of the ergonomic practice checklist based on the observations recorded independently by the raters.

Results: Results from the panel of experts yielded a 0.98 overall Content validity index. Inter-rater reliability analysis revealed that r value was above 0.87 for all the sections of the checklist thus being in the excellent range.

Conclusion: The process used to determine Content validity and the inter-rater reliability proved to offer structure and consistency to the instrument development. High CVI scores were generated for the items judged relevant to the content domain as well as for the overall instrument. The checklist demonstrated an excellent reliability. The results support the Content validity and the inter-rater reliability of this Checklist as a tool to assess the Ergonomic Practice of Computer Professionals.

Key words: Content Validity, Inter-rater reliability, Ergonomic Practice Checklist, Computer Professionals


 
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How to Cite this Article
Pubmed Style

Sirajudeen MS, Pillai PS, Shah UN, Mohan N. Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. International Journal of Therapies and Rehabilitation Research. 2012; 1(2): 11-18. doi:10.5455/ijtrr.00000010



Web Style

Sirajudeen MS, Pillai PS, Shah UN, Mohan N. Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. www.scopemed.org/?mno=21588 [Access: June 23, 2017]. doi:10.5455/ijtrr.00000010



AMA (American Medical Association) Style

Sirajudeen MS, Pillai PS, Shah UN, Mohan N. Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. International Journal of Therapies and Rehabilitation Research. 2012; 1(2): 11-18. doi:10.5455/ijtrr.00000010



Vancouver/ICMJE Style

Sirajudeen MS, Pillai PS, Shah UN, Mohan N. Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. International Journal of Therapies and Rehabilitation Research. (2012), [cited June 23, 2017]; 1(2): 11-18. doi:10.5455/ijtrr.00000010



Harvard Style

Sirajudeen, M. S., Pillai, P. S., Shah, U. N. & Mohan, N. (2012) Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. International Journal of Therapies and Rehabilitation Research, 1 (2), 11-18. doi:10.5455/ijtrr.00000010



Turabian Style

Sirajudeen, Mohamed Sherif, Padmakumar Somasekharan Pillai, Umama Nisar Shah, and Nagarajan Mohan. 2012. Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. International Journal of Therapies and Rehabilitation Research, 1 (2), 11-18. doi:10.5455/ijtrr.00000010



Chicago Style

Sirajudeen, Mohamed Sherif, Padmakumar Somasekharan Pillai, Umama Nisar Shah, and Nagarajan Mohan. "Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals." International Journal of Therapies and Rehabilitation Research 1 (2012), 11-18. doi:10.5455/ijtrr.00000010



MLA (The Modern Language Association) Style

Sirajudeen, Mohamed Sherif, Padmakumar Somasekharan Pillai, Umama Nisar Shah, and Nagarajan Mohan. "Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals." International Journal of Therapies and Rehabilitation Research 1.2 (2012), 11-18. Print. doi:10.5455/ijtrr.00000010



APA (American Psychological Association) Style

Sirajudeen, M. S., Pillai, P. S., Shah, U. N. & Mohan, N. (2012) Content validity and inter-rater reliability of a checklist to assess the ergonomic practice of computer professionals. International Journal of Therapies and Rehabilitation Research, 1 (2), 11-18. doi:10.5455/ijtrr.00000010








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