PPT-VARIANCE COMPONENTS ANALYSIS FOR BALANCED AND UNBALANCED DATA IN RELIABILITY OF GAIT MEASUREMENT

Mohammadreza Mohebbi Department of epidemiology and preventive medicine Faculty of Medicine Nursing and Health Sciences Monash University Melbourne . SPSS. Karl L. Wuensch. Dept of Psychology. East Carolina University. When to Use PCA. You have a set of . p. continuous variables.. You want to repackage their variance into . m. components.. You will usually want . Mohammadreza Mohebbi. Department of epidemiology and preventive medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne . . Ahmed Alsanousi. CSC 464. Types of instruments. Existing instruments. Oscilloscope. Re-use rating scale. Create an instrument. Survey. Checklist. Paper and pencil. Tangible and intangible. Measurement Definition. A . force. is a push or a pull. .. Many different forces act on objects around us all the time.. . If . the forces on the object are . balanced. , . then the object doesn’t move. . When two or more forces are acting on an object and they are not equal in size, we say the forces are . Presenter: Michael Czahor. Major Professor: Dr. Bill Meeker. Home Department. : Statistics. A Brief Background . Drexel University-BMES Dept.. Rowan University-Mathematics. Statistical motivation (Dr. Lacke/Dr. . Mohammadreza Mohebbi. Department of epidemiology and preventive medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne . . Prof. Andy Field. Slide . 2. Aims. Explore factor . a. nalysis and . p. rincipal . c. omponent . a. nalysis (PCA). What . Are . factors. ?. Representing . factors. Graphs and Equations. Extracting factors. Forces. Presented by Kesler Science. What are balanced and unbalanced forces?. How do unbalanced forces cause a change in position, direction, and speed of an object when acted upon by unbalanced forces?. Forces. What is a force?. A force is a push or pull that causes an object to move, stop, or change direction. In . physics, . a force is anything that makes an object . accelerate. Balanced and Unbalanced Forces. Karl L. Wuensch. Dept of Psychology. East Carolina University. When to Use PCA. You have a set of . p. continuous variables.. You want to repackage their variance into . m. components.. You will usually want . Gage R&R Estimating measurement components Gage capability and acceptability measures Prof. Tom Kuczek, Purdue Univ. 1 Terms and Definitions • Repeatability refers to the measurement variation obtained when one person repeatedly measures the same item with the same gage. Outline. Reliability. Definition. Test score theory. True score. Error. Sources of error. Test Reliability. Test-retest. Parallel forms. Single administration methods. Split-half. Internal consistency. Forces & Gravity. Notes. Write down the words in yellow.. The words in white are discussion points, you may write these down, but are not required.. Gravity. Gravity is a . force. that pulls objects toward each other.. Karl L. Wuensch. Dept of Psychology. East Carolina University. When to Use PCA. You have a set of . p. continuous variables.. You want to repackage their variance into . m. components.. You will usually want .