VALIDITY AND RELIABILITY OF VERBAL ONLINE SUBJECTIVE OPINION (VOSO) AND MODIFIED COOPER-HARPER SCALES IN MEASURING OF MENTAL WORKLOAD

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CHARKHANDAZ YEGANEH REZA; ALIMOHAMMADI IRAJ; ABOLGHASEMI JAMILEH; DAMIRI ZABIOLAH; PARSAZADEH BAHAR; RAHMANI NEGAR

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Journal: JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING Year:2016 | Volume:3 | Issue:3 Page(s): 24-31

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Title

VALIDITY AND RELIABILITY OF VERBAL ONLINE SUBJECTIVE OPINION (VOSO) AND MODIFIED COOPER-HARPER SCALES IN MEASURING OF MENTAL WORKLOAD

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Keywords

MENTAL WORKLOADQ1

VERBAL ONLINE SUBJECTIVEQ2

OPINION SCALEQ2

MODIFIED COOPER-HARPER SCALEQ2

Abstract

Introduction: High MENTAL WORKLOAD is one of the important factors that results in errors in safety and occupational health scope, and its measurement has high importance. Therefore, this study aimed at determining the validity and reliability of VERBAL ONLINE SUBJECTIVE Opinion (VOSO) and Modified Cooper-Harper (MCH) scales in measuring MENTAL WORKLOAD.Methods: This study was conducted on 90 male students of Iran University of Medical Sciences. In this study, forward-backward translation was used for translation of scales. Moreover, Content Validity Ratio (CVR) and Content Validity Index (CVI) were calculated considering the suggestions of 6 ergonomics and occupational health experts. The Hybrid Memory Search Task software was used to create MENTAL WORKLOAD. Convergent validity of scales was calculated using correlation of scales with reaction time and then test-retest method was used to determine the reliability of scales.Results: Content and convergent validity of scales were confirmed and correlation of both scales with reaction time were higher than 0.8. Moreover, for determination of scales reliabilities, Pearson correlation coefficient between scales values in test and retest trials were 0.86 and 0.91 for VOSO and MCH, respectively.Conclusions: It seems that in regards to confirmation of validity and reliability of VOSO and MCH in this study and their high correlation with reaction time, these scales could be used in measurement of MENTAL WORKLOAD.

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APA: Copy

CHARKHANDAZ YEGANEH, REZA, ALIMOHAMMADI, IRAJ, ABOLGHASEMI, JAMILEH, DAMIRI, ZABIOLAH, PARSAZADEH, BAHAR, & RAHMANI, NEGAR. (2016). VALIDITY AND RELIABILITY OF VERBAL ONLINE SUBJECTIVE OPINION (VOSO) AND MODIFIED COOPER-HARPER SCALES IN MEASURING OF MENTAL WORKLOAD. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING, 3(3), 24-31. SID. https://sid.ir/paper/253518/en

Vancouver: Copy

CHARKHANDAZ YEGANEH REZA, ALIMOHAMMADI IRAJ, ABOLGHASEMI JAMILEH, DAMIRI ZABIOLAH, PARSAZADEH BAHAR, RAHMANI NEGAR. VALIDITY AND RELIABILITY OF VERBAL ONLINE SUBJECTIVE OPINION (VOSO) AND MODIFIED COOPER-HARPER SCALES IN MEASURING OF MENTAL WORKLOAD. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING[Internet]. 2016;3(3):24-31. Available from: https://sid.ir/paper/253518/en

IEEE: Copy

REZA CHARKHANDAZ YEGANEH, IRAJ ALIMOHAMMADI, JAMILEH ABOLGHASEMI, ZABIOLAH DAMIRI, BAHAR PARSAZADEH, and NEGAR RAHMANI, “VALIDITY AND RELIABILITY OF VERBAL ONLINE SUBJECTIVE OPINION (VOSO) AND MODIFIED COOPER-HARPER SCALES IN MEASURING OF MENTAL WORKLOAD,” JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING, vol. 3, no. 3, pp. 24–31, 2016, [Online]. Available: https://sid.ir/paper/253518/en

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