PPT-Construct Validity And its Threats

Jill Hoxmeier H615 Advanced Research Design October 10 2013 Boy a few more like that and Ill be ready for Gamblers Anonymous Twin Problems of Construct Validity Construct Validity . CONSTRUCT. DEFINITION. Construct (v.). Build or make something. It is used typically when we speak about the road, building or machine. . Example . . The ministry of transport construct a new highway.. 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 . Internal Validity. Construct Validity. External Validity. * In the context of a research study, i.e., not measurement validity.. Validity*. Generally relevant only to studies with . causal relationships. for the Discovery of Treatments for . Cognitive Deficits in Schizophrenia. What is a . Model. ?. MEASURE. Paradigm or. assay measuring. a . specific cognitive . function that is impaired. in patients with schizophrenia. 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?. Suzanne Lane. University of Pittsburgh. Member, Management Committee for the JC. on Revision of the 1999 Testing Standards. Organization of 1999 Standards. Part I: Foundational Chapters. Part II: Fairness in Testing. Specific Issues in experimental design and implementation. II-A. The “schizophrenias” (. Bleuler. ) are neurobiological disorders . diagnosed solely on . the basis of . behavioral. changes . Schizophrenia . The Stages in . Structural Equation Model. Stage 1) . Assessing individual constructs . Stage 2) . Developing and assessing the measurement model validity. Stage 3) . Specifying the structural model. 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. Concept analysis. 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). 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? . hypothesis. . testing. MSc. . Methodology. . Seminar. I. Felipe . Orihuela-Espina. VALIDATION. 24/08/2014. INAOE. 2. Contents. Ground truth. Gold. . standard. Types. of . validity. Mechanisms. . Linda Richter. RESEP Early Learning Workshop. Stellenbosch 4-5 July 2019. Why assess young children?. 2. Early detection/screening for remediation. Clinical: administrative (eg men. tal disability}; progress in response to intervention. Plaut RD, Staab AB, Munson MA, Gebhardt JS, Klimko CP, Quirk AV, et al. Avirulent Bacillus anthracis Strain with Molecular Assay Targets as Surrogate for Irradiation-Inactivated Virulent Spores. Emerg Infect Dis. 2018;24(4):691-699. https://doi.org/10.3201/eid2404.171646.