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פרסום // מאמר: פיתוח מדד להערכת הסיכון להטיה עבור סקירות שיטתיות של סקרים (גבריאל נודלמן, קתלין אוטו) [אנגלית]

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Nudelman, G., & Otto, K. (2020). The Development of a New Generic Risk-of-Bias Measure for Systematic Reviews of Surveys. Methodology, 16(4), 278-298.

It is important to evaluate risk of bias of the primary studies included in systematic reviews and meta-analyses. Since tools pertinent to surveys are scarce, the goal of the current research was to develop a measure to address this need. In Study 1, an initial list of 10 relevant topics was compiled from previous measures. In Study 2, the list was refined into an eight-item risk-of-bias measure via discussion and a pilot study. In Study 3, experienced researchers used the measure to asses 70 studies, demonstrating high interrater agreement (weighted Kappa=. 82). Inexperienced raters also utilized the measure to code 26 different studies included in a prior meta-analysis, which resulted in adequate interrater agreement (weighted Kappa=. 64) and excellent convergent validity (r=. 66). Thus, the new measure, designed to be accessible and flexible, can increase standardization of risk-of-bias evaluations and contribute to the interpretation of systematic reviews and meta-analytic findings.


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