Measurement Reliability and Validity - Measurement Reliability and Validity | PowerPoint PPT presentation | free to view . In statistics, the term validity implies utility. Validity is measured through a coefficient, with high validity closer to 1 and low validity closer to 0. As well as reliability, it’s also important that an assessment is valid, i.e. Presentations. To better understand this relationship, let's step out of the world of testing and onto a bathroom scale. Interrater reliability. SEMESTER 1, … Written by Colin Phelan and Julie Wren, Graduate Assistants, UNI Office of Academic Assessment (2005-06) Reliability is the degree to which an assessment tool produces stable and consistent results. Marianne Miserandino’s Ice Cream Personality Test can help illustrate their overlap and differences. Internal validity: Internal consistency : The consistency of the measurement itself: do you get the same results from different parts of a test that are designed to measure the same thing? Practicality Exercises. PPT – Construct Validity and Reliability PowerPoint presentation | free to view - id: 1dfefe-ZDc1Z. When you do quantitative research, you have to consider the reliability and validity of your methods and instruments of measurement. Validity tells you how accurately a method measures something. The reliability and validity of a measure is not established by any single study but by the pattern of results across multiple studies. Presentation Summary : 4. alpha is the best measure of internal consistency reliability. To learn more about validity, see my earlier post Presentation Summary : Statistical Conclusion Validity: Are the statistical conclusions well-grounded? Use language that is similar to what you’ve used in class, so as not to confuse students. Continuing the kitchen scale metaphor, a scale might consistently show the wrong weight; in such a case, the scale is reliable but not valid. It is the degree to which a research study measures what it intends to measure. EXPLORING RELIABILITY IN ACADEMIC ASSESSMENT . Internal Validity: Ability to rule out plausible rival hypotheses. Determining Validity and Reliability of Key Assessments - Title: Determining Validity and Reliability of Key Assessments Author: Susan Malone Last modified by: Fran Jackson Created Date: 5/12/2012 3:19:57 PM | PowerPoint PPT presentation | free to view . Some Factors that Affect the Validity of a Test 1. Validity and Reliability in Medical Education Assessment: Current Concepts Congreso Nacional De Educacion Medica Puebla, Mexico 12 January, 2007 Steven M. Downing, PhD Department of Medical Education University of Illinois at Chicago sdowning@uic.edu. Using pressure algometers, novice raters demonstrated substantial reliability in PPT assessment in healthy and pathological populations (Walton et al., 2011). VALIDITY • the degree to which a test actually measures what it tries to measure. Get the plugin now. VALIDITY AND RELIABILITY 3 VALIDITY AND RELIABILITY 3.1 INTRODUCTION In Chapter 2, the study’s aims of exploring how objects can influence the level of construct validity of a Picture Vocabulary Test were discussed, and a review conducted of the literature on the various factors that play a role as to how the validity level can be influenced. Actions . The four types of validity. Validity tells you how accurately a method measures something. Validity and reliability in social science research 111 items can first be given as a test and, subsequently, on the second occasion, the odd items as the alternative form. To determine stability, a measure or test is repeated on the same subjects at a future date. In quantitative research, you have to consider the reliability and validity of your methods and measurements. The assessment of reliability and validity is an ongoing process. STABILITY RELIABILITY