RTA_2_2012
RELIABILITY Reliability refers to the consistency of a test or measurement. –Reliability studies Test-retest reliability –Equipment and/or procedures Intra-
Assessing the Assessment Reliability. Am I measuring something? Validity. Am I measuring what I think I am measuring? Test-retest Interobserver agreement.
In Today’s Society Education = Testing Scores = Accountability Obviously, Students are held accountable, But also! Teachers School districts States.
Reliability, the Properties of Random Errors, and Composite Scores.
17 - 1 © 2011 Pearson Education, Inc. publishing as Prentice Hall 17 Maintenance and Reliability PowerPoint presentation to accompany Heizer and Render.
MEGN 537 – Probabilistic Biomechanics Ch.1 – Introduction Ch.2 – Mathematics of Probability Anthony J Petrella, PhD.
FACULTY DEVELOPMENT PROFESSIONAL SERIES JENNY GIBSON, PHD OFFICE OF MEDICAL EDUCATION TULANE UNIVERSITY SCHOOL OF MEDICINE Using Statistics to Evaluate.
Shanghai Jiao Tong University 1 ME250: Statistics & Probability ME 250: Design & Manufacturing I School of Mechanical Engineering.
1 Reliability Failure rates Reliability Constant failure rate and exponential distribution System Reliability –Components in series –Components in parallel.
Details for Today: DATE:3 rd February 2005 BY:Mark Cresswell FOLLOWED BY:Assignment 2 briefing Evaluation of Model Performance 69EG3137 – Impacts & Models.
Design Into Practice These lectures tie into Terre Blanche chapter 4 and 5 Now you have a design – how do you run the study? Many practical issues involved.
