PPT-Assessing the Validity and Reliability of Online Medical Information

Nancy B Clark MEd Director of Medical Informatics Education Summer 2013 1 Objectives of Session Students will Demonstrate ability to evaluate the validity quality and intended audience of medical information found on the web. 0 RELIABILITY ALLOCATION Reliability Allocation deals with the setting of reliability goals for individual subsystems such that a specified reliability goal is met and the hardware and software subsystem goals are well b TYPE OF RELIABILITY/VALIDITY NUMBER OF PERSONS TO ASSESS Test - Retest Reliability Inter - Interviewer Reliability Inter - Respondent Reliability Concurrent Validity ________________________________ Measuring Research Variables. Research Methods in Physical Activity. Research Methods in Physical Activity. Validity. Validity (. Degree to which a test or instrument measures what it purports to measure; can be categorized as logical, content, criterion, or construct validity. . Reliability gets more attention:. Easier to understand. Easier to measure. More formulas (like stats!). Base for validity. Need for validity. Does test measure what it claims?. Can test be used to make decisions?. 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. Reliability, Validity and Scale Construction. Steve Fisher, Robert Andersen. and. Anthony Heath . . Department of Sociology. . UNIVERSITY of OXFORD. 2. The Logic of Sampling & Measurement. It’s my favourite part of the syllabus…honest. Would a teacher lie to you?. I can reliably predict that you’re all yawning already. Y. Right, own up. Who wrote that? Detention for a week! Yes, we know it seems boring.... . of. . diagnosis. DSM. The . D. iagnostic and . S. tatistical . M. anual of Mental Disorder (Edition 4), was last published in 1994. . The DSM is produced by the American Psychiatric Association. . & . Validity. Reference. The majority of this lecture was taken . from . How . to Measure Survey Reliability . & Validity. . by Mark . Litwin. , Sage Publications,1995. .. Lecture objectives. Why is this so important and. why is this so difficult?. Reliability and Validity. The language for this is from the quantitative tradition—scientific . verification—positivism. . Habermas. ’ cognitive interest of . Some types of validity. Criterion-related . Content. Construct. All part of . unitarian. view of validity. Constructs - theoretical abstractions aimed at organizing and making sense of our environment; they are. La gamme de thé MORPHEE vise toute générations recherchant le sommeil paisible tant désiré et non procuré par tout types de médicaments. Essentiellement composé de feuille de morphine, ce thé vous assurera d’un rétablissement digne d’un voyage sur . Reliability of diagnosis. = the extent to which clinicians agree on the same diagnosis for the same patient. .. The extent to which the same diagnosis is given in different cultures. Reliability in diagnosis. Easier to understand. Easier to measure. More formulas (like stats!). Base for validity. Need for validity. Does test measure what it claims?. Can test be used to make decisions?. Validity. Reliability is a necessary, but not a sufficient condition for validity..