PDF-An Instructors Guide to Understanding Test Reliability Craig S

Wells James A Wollack Testing Evaluation Services University of Wiscon sin 1025 W Johnson St 373 Madison WI 53706 November 2003 brPage 2br An Instructors Guide to Understanding Tes t Reliability Test reliability refers to the consistency of scores. Chapter 4S. Learning Objectives. Define reliability. Perform simple reliability computations. Explain the purpose of redundancy in a system. Reliability. Reliability. The ability of a product, part, or system to perform its intended function under a prescribed set of conditions. BPT2423 – STATISTICAL PROCESS CONTROL. CHAPTER OUTLINE. Fundamental Aspects. Product Life Cycle Curve. Measures of Reliability. Failure Rate, Mean Life and Availability. Calculating System Reliability. A Cheat Sheet. Power Point. What does it mean. Validity . – Depends on the . PURPOSE. . (reaching a conclusion). Must . be . inferred. from evidence. What . you learn from it . Reliability. – The . 2. Raw Material. Supplier. (i.e. Leadframe). Component. Manufacturing. PC Board . Assembly. System. Assembly. End-Use. Customer. Control Points. for Emphasis. Development. Manufacturing. FSC Worldwide Quality & Reliability. using . Busting Up . Bullying 1100L. Day 1. Warm-Up. :. Read . paragraphs 1-3 of the . article . Busting . Up Bullying. . 1100L. . Underline three or four of the most important words in each of those paragraphs.. Validity . Is the translation from concept to . operationalization. accurately representing the underlying concept. . Does your variables measure what you think in abstract concepts.. This is more familiarly called Construct Validity.. Arsen Papisyan. Anthony Gwyn. Introduction. Therac-25 – delivery of high radiation to patients. Slammer worm – disabled safety parameter system at nuclear power system. Edwin I. Hatch nuclear power plant – computer resets the control system. _______________________. Presented to. . PLATTS Transmission Planning and . & . Validity. Reference. The majority of this lecture was taken . from . How . to Measure Survey Reliability . & Validity. . by Mark . Litwin. , Sage Publications,1995. .. Lecture objectives. Adjunct Instructors in Distance Education Designing an Effective Digital infrastructure for Best Practices Stephen Cummings, LISW, ACSW Julia Kleinshmit , JD, MSW Acknowledgements University of Iowa School of Social Work Alan Danaher, PE, PTOE, AICP, PTP. Overview. 2. Overview of Research. TCRP A-42 . provides a . comprehensive assessment of fixed-route bus service reliability, the predominant type of transit service in North America and around the world.. powerstation. NOx. from Craig. The Craig . powerstation. is the largest uncontrolled . NOx. source in the state (~18k tons/. yr. ). NPS is lobbying EPA for stricter controls (i.e., SCR on all three boilers). Lu . Lu. , University of South Florida. Christine M. Anderson-Cook, Los Alamos National Laboratory. Mingyang Li, University of South Florida. 1. Outline. Binomial Demonstration Test Plan. Risk Criteria: consumer risk and producer risk. Outline. Reliability. Definition. Test score theory. True score. Error. Sources of error. Test Reliability. Test-retest. Parallel forms. Single administration methods. Split-half. Internal consistency.