Hierarchy of Study Designs for Intervention
{"Image DocumentName": "Hierarchy of Study Designs for Intervention", "Image ImageDescription": "Least. Bias. Randomized Controlled Trial. Cohort Studies. Case-Controlled Studies. Most. Case reports/Clinical Observations. Experimental. Observational. Observational. Observational. To recognize the type of study ask the questions: Is intervention randomly assigned? Yes-RCT; No-Observational study. When were the outcomes determined? After the exposure-cohort study (prospective study) During the exposure-cross-sectional study. Before the exposure-case-control study (retrospective study based on recall)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}