THE VALIDITY AND RELIABILITY OF AN USABILITY ASSESSMENT TOOL FOR A WEB-BASED SOFTWARE

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FARADMAL JAVAD; KESHVARI KAMRAN JAVAD

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Journal: Iranian Journal of Ergonomics Year:2014 | Volume:2 | Issue:3 Page(s): 57-69

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Information Journal Paper

Title

THE VALIDITY AND RELIABILITY OF AN USABILITY ASSESSMENT TOOL FOR A WEB-BASED SOFTWARE

Author(s)

FARADMAL JAVAD | KESHVARI KAMRAN JAVAD | Issue Writer Certificate

Keywords

USABILITYQ1

WEB-BASED RESEARCH SYSTEMSQ2

ASSESSMENT QUESTIONNAIREQ2

VALIDITYQ2

RELIABILITYQ2

REPRODUCIBILITYQ2

Abstract

Introduction: Index of USABILITY evaluates performance, user satisfaction and increased productivity in a product. Principles of USABILITY are effectiveness, efficiency, safety, utility, learnability, Memorability. This Study Aims to Develop a Tool to Estimate and Evaluate the USABILITY of Web Applications in the field of Automation Research has been determined.Material and Methods: After extracting, an initial questionnaire to assess the USABILITY of the standard resource for indices of VALIDITY, internal consistency and REPRODUCIBILITY, respectively technique for determining the content VALIDITY, test-retest method and cronbach's alpha coefficient were used. The most important steps were as follow: (1) determine the scope and dimensions of the questions (2) preparing draft questionnaire (3) appoint the members of the expert panel (4) methods, how data analysis (5) determine the acceptance criteria of the questions (6) determine the content VALIDITY index (7) determine RELIABILITY of the questionnaire (8) determine REPRODUCIBILITY of the questionnaire.Results: A 50-Item questionnaire was designed as the ultimate tool. The content VALIDITY index value of 0.763 was obtained ultimately for the questionnaire. Analysis of the questionnaire responses revealed that the lower backend errors related to the RELIABILITY coefficient alpha value was equal to 0.742. Finally, the degree of REPRODUCIBILITY of the questionnaire, using test-retest method, was equal to value of 0.993 (p<0.001).Conclusion: After the final questionnaire design, with good RELIABILITY and VALIDITY, it is noticeable that the designed tool is applicable on relevant softwares and may improve the quality and efficiency of the software and user interface.

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APA: Copy

FARADMAL, JAVAD, & KESHVARI KAMRAN, JAVAD. (2014). THE VALIDITY AND RELIABILITY OF AN USABILITY ASSESSMENT TOOL FOR A WEB-BASED SOFTWARE. JOURNAL OF ERGONOMICS, 2(3), 57-69. SID. https://sid.ir/paper/103281/en

Vancouver: Copy

FARADMAL JAVAD, KESHVARI KAMRAN JAVAD. THE VALIDITY AND RELIABILITY OF AN USABILITY ASSESSMENT TOOL FOR A WEB-BASED SOFTWARE. JOURNAL OF ERGONOMICS[Internet]. 2014;2(3):57-69. Available from: https://sid.ir/paper/103281/en

IEEE: Copy

JAVAD FARADMAL, and JAVAD KESHVARI KAMRAN, “THE VALIDITY AND RELIABILITY OF AN USABILITY ASSESSMENT TOOL FOR A WEB-BASED SOFTWARE,” JOURNAL OF ERGONOMICS, vol. 2, no. 3, pp. 57–69, 2014, [Online]. Available: https://sid.ir/paper/103281/en

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