EVAL 6970: Experimental and Quasi-Experimental Designs. Dr. Chris L. S. Coryn Dr. Anne Cullen Spring 2012. Agenda. Statistical power/design sensitivity Statistical conclusion validity and internal validity. Statistical Power/Design Sensitivity. Types of Hypotheses. General forms:By meara
Chapter 9. Test of Hypotheses for a Single Sample. Learning Objectives. Structure hypothesis tests Test hypotheses on the mean of a normal distribution using either a Z -test or a t -test procedure Test hypotheses on the variance or standard deviation of a normal distributionBy jeri
Review. Nine men and nine women are tested for their memory of a list of abstract nouns. The mean scores are M male = 15 and M female = 17. The mean square based on both samples is MS = 25. What is your best estimate of the (non-standardized) effect size, µ female – µ male ? 0.40By tuari
Advanced Methods and Analysis for the Learning and Social Sciences. PSY505 Spring term, 2012 April 18, 2012. Today’s Class. Post-hoc Adjustments. The Problem. If you run 20 statistical tests, you get a statistically significant effect in one of themBy manchu
Confidence Intervals. Chantel Chang Math 480 Dr. Faber. Definitions. 1) Estimator : A random variable, , that is a function of a random sample x 1 ,x 2 ,… , x n (e.g. sample mean ).By manton
Critical Appraisal. Dr. Chris Hall – Facilitator Dr. Dave Dyck R3 March 20/2003. Objectives:. Review study design and the advantages/ disadvantages of each Review key concepts in hypothesis, measurement, and analysis Article appraisal Treatment articles Diagnosis articles Harm articlesBy nat
View Type i error PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of Type i error PowerPoint presentations. You can view or download Type i error presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.