logging in or signing up Research Study Designs drpattron68 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2529 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: March 13, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: ninenaing (41 month(s) ago) Thank u! Downloaded.. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Research Study Designs: Research Study Designs Dr. Deryck D. Pattron, Ph.D. Public Health & Safety ConsultantContents: Contents Introduction Case Series Studies Case Control Studies Cohort Studies Randomized Controlled Studies Meta-analysis Systematic Reviews Conclusion References Introduction: Introduction Research designs provide the theoretic framework for logical, systematic, collection, analysis and interpretation of scientific information All scientific studies follow a particular research design The selection of a particular research design is dependent on the objectives of the study and the data to be collectedCase Series Studies: Case Series Studies Collection of reports on the treatment of individuals with the same condition or reports on a single patient No control group Lacks statistical validity Easy to understand Completed in a short time periodCase Control Studies: Case Control Studies Individuals with a particular condition are compared with people who do not Take histories (study and control group), analyze data and draw conclusions Estimate the odds of developing a condition/disease Can be quickly done Very effective for conditions with rare outcomesCohort Studies: Cohort Studies Longitudinal studies Observations followed over time and compared Prospective or historical/retrospective Establish causation of a disease Uncertainty of confounding variables Require large sample size Inefficient for rare outcomes Take longer periods to completeRandomized Controlled Studies: Randomized Controlled Studies Two groups Treatment group Control group Patients randomly assigned to groups Gold standards in medical research Ethical concerns Confounding variables Meta-Analyses: Meta-Analyses Systematic objective way to combine data from many studies Pooled estimate of treatment effectiveness Statistical significance Publication bias Theoretical framework Misleading resultsSystematic Reviews: Systematic Reviews Comprehensive survey All relevant studies of highest level of evidence Rigorous analysis Systematic review Conclusion: Conclusion Research designs are used by researchers, scientists and interested persons to direct and conduct logical and systematic research to increase our understanding of the world around us References: References Gravetter, F.J., Forzano, L-B. A. 2006. Research Methods for the Behavioural Sciences. California: Wadsworth Cengage Learning McBurney D.H., White T.L. 2007. Research Methods. California: Thomson Higher Education You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.