Cohort 2 | Phase 4 | Session 1 | Risk of Bias & Quality Assessment | Dr. Mariam Elewidi

Topic: Risk of Bias & Quality Assessment Instructor: Dr. Mariam Elewidi Description: Not all evidence is created equal — knowing how to judge the quality and trustworthiness of a study is essential before including it in a review. In this session, Dr. Mariam Elewidi walks participants through the tools and frameworks used to assess bias and evidence quality. Participants will learn: Assessing randomized controlled trials using Cochrane RoB 2 How to report risk of bias results in a manuscript By the end of this session, learners will be able to critically appraise study quality and report risk of bias findings accurately. Materials & Resources: All shared materials are available on Telegram: search for @Qabas00000 00:00:02 Introduction & Welcome 00:02:05 Dr. Mariam Introduction 00:04:56 Audience Level Check & Presentation Start 00:06:36 What is Risk of Bias & Quality Assessment 00:08:34 Difference Between Bias and Quality 00:12:26 Hypothetical Scenario: Iron Trial in Pregnant Women 00:17:36 The Placebo Effect Explained 00:19:00 Scenario Continued: How Results Get Skewed 00:24:43 Q&A Session 1 00:32:26 Scenario 2: Surgeon Bias Example 00:36:06 Q&A Session 2 00:43:04 Allocation Concealment Explained 00:52:01 Five Steps to Avoid Bias (Recap) 00:59:37 Introduction to Bias Domains 01:06:08 Summary of Sources of Bias 01:09:47 Randomization Methods in Detail 01:14:52 Domain: Deviation from Intended Intervention 01:18:51 Domain: Missing Outcome Data 01:35:23 Domain: Outcome Measurement & Assessor Blinding 01:40:13 Domain: Selective Reporting 01:44:10 Recap: How to Read a Paper Properly 01:57:19 The Balanced Scale Analogy (Apples Example) 02:03:07 Q&A on Randomization & Allocation 02:05:08 Introduction to the RoB2 "Macro Tool" 02:09:46 Tool Walkthrough: Domain 1 (Randomization) 02:10:26 Tool Walkthrough: Domain 2 (Deviations) 02:13:36 Tool Walkthrough: Domain 3 (Missing Data) 02:14:49 Tool Walkthrough: Domain 4 (Outcome Measurement) 02:16:37 Tool Walkthrough: Domain 5 (Selective Reporting) 02:20:38 Closing Q&A and Wrap-up