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  • 21.

    What is your overall appraisal of the quality of evidence about intermediate outcomes provided by this study?

    • Consider your answers to questions 7, 8, 9, 13, 14, 19 and give an overall assessment.

  • 22.

    What is your overall appraisal of the quality of evidence about final outcome(s) provided by this study?

    • Consider your answers to questions 7, 8, 9, 15, 16, 19 and give an overall assessment.

  • 23.

    What is your overall appraisal of the quality of evidence about financial benefits provided by this study?

  • Consider your answers to questions 7, 8, 9, 17, 18, 19 and give an

overall assessment.

Questions 24-30 are concerned with any facilitators and barriers aspects of the study.

  • 24.

    If qualitative research methods were used to identify facilitators and barriers, how do you rate the quality of those methods?

    • In the comment box following your response, note the rationale for your selection. Refer to excerpt from Spencer et al. (2003) Quality in qualitative evaluation: A framework for assessing research evidence. London: Strategy Unit, Cabinet Office.

  • 25.

    Are you confident that the means of selecting and maintaining the sample used in quantitative F/B study minimized bias?

    • See Q8 above.

  • 26.

    Are you confident that (in the quantitative study of F/Bs) potential confounders were adequately considered, and then either well controlled or appropriately discounted as a source of bias?

    • See Q9 above.

  • 27.

    Are you confident the measurement methods did not introduce bias to the corresponding F/B findings?

  • In the comment box following your response, note the rationale for your selection.

  • This question addresses measurement bias; i.e., systematic error arising from inaccurate measurement (or classification) of subjects on study variable(s).

Effectiveness of Occupational Health & Safety Management Systems: A Systematic Review

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