PPT-Reliability and Validity

Thinking Questions What is an IV What is a DV What is repeated measures design What is matched pairs design What is independent groups design What is a hypothesis Can you name the 3 types . 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 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?. 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.. Week 8, Psych 350 – R. Chris Fraley. Validity. In our last class, we began to discuss some of the ways in which we can assess the quality of our measurements.. We discussed the concept of reliability (i.e., the degree to which measurements are free of random error).. 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. . ASQ RD Webinar Series. Reliability Works Incorporated. 830-1100 Melville . St. Vancouver B.C. . Canada V6E 4A6. Copyright Reliability Works Inc. . . . 2018. Presented by. Frank Thede, . P.Eng. Principle Reliability Engineer. & . Validity. Reference. The majority of this lecture was taken . from . How . to Measure Survey Reliability . & Validity. . by Mark . Litwin. , Sage Publications,1995. .. Lecture objectives. Jamie DeLeeuw, Ph.D.. 5/7/13. Reliability. Consistency of measurement. The measure itself is dependable.. ***A measure must be reliable to be valid!***. High reliability = greater consistency = lower randomness (error). 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. Basics . What is reliability? . What is validity? . Can you have one without the other? Why or why not? . Reliability. Observed score . = True score random error systematic error. Explain. Why is this important? . Instrumentation: Validity Measuring Caring in Nursing Validity: Defined Extent to which instrument reflects abstract construct being examined; measures what it is supposed to measure Domain or Universe of Construct 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..