Experimental Design Part 1 PDF

EXPERIMENTAL STUDY DESIGNS AFAF TAHOON CERTIFIED RESEARCH COORDINATOR CAIRO UNIVERSITY  ELEMENT ONE Classification of study designs ELEMENT TWO Evidence levels ELEMENT THREE Difference between Expe...

EXPERIMENTAL STUDY DESIGNS AFAF TAHOON CERTIFIED RESEARCH COORDINATOR CAIRO UNIVERSITY  ELEMENT ONE Classification of study designs ELEMENT TWO Evidence levels ELEMENT THREE Difference between Experimental and nonexperimental EXPERIMENTAL ELEMENT FOUR Types of experimental study designs TRIALS ELEMENT FIVE Advantageous and disadvantageous ELEMENT SIX When to choose each type  ELEMENTS OF RESEARCH DESIGN  ANALYTICAL STUDIES BASED ON CLINICAL TRAILS difference observational studies = no treatment fference CONFOUNDER VARIABLES HOW TO CONTROL 2 CONTRADICTED TERMS PHD EXCLSUSION CRITERIA OTHERS NOT EXLUDED AS DEGREE OF INSTABILITY AND SPRAIN EXPERIMENTAL VERSUS OBSERVATIONAL  MONEY PEOPLE BIAS TIME EFFORT RCT ADV & DIS RCT and observational studies strength EVIDENCE LEVEL EVIDENCE LEVELS RCT CHOICE ! WHICH IS BEST COHORT CASE CONTROL- CROSS SECTION CASE REPORT/ SERIES INTERVENTION TRAILS CAUSALITY TRAILS PHASE 1 is it safe PHASE 2 does it work PHASE 3 is it better PHASE 4 can it stay in the market EXPERIMENTAL What is the control group? Receive what ??! DESIGNS OF NOT TRUE EXPERIMENTAL TRUE EXPERIMENTAL CT nonrandom assignment UNCONTROLLED R A ND OMI ZED NON-NORMALIZED CONTROLLED one of 2 conditions not present SYMBOLS PRE- EXPERIMENTAL O N E S H OT C A S E S T U DY ONE GROUP PRE-POST TEST S TAT I C G R O U P  THANK YOU Afaf Tahoon [email protected] [email protected]