lecture1note - Psych 100A Fall 2009 Course Objectives Basic...

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1 Introduction to Psych 100A Fall 2009 Statistics Lecture 1 Course Objectives Basic understanding of the statistics used often in psychological research How to think analytically and critically about research design, analysis methods and results Learn how to design and analyze a psychological / behavioral study Definition: Statistics Numerical properties of groups rather than individuals. Collection of methods that enables one to draw reasonable conclusions from data (Dunn, 1977). Two major branches of modern statistics 1. Descriptive – deals with techniques for summarizing and presenting data and is aimed at clarity (common understanding). 2 Inferentia deals with methods for 2. Inferential – deals with methods for assessing uncertainties in inductive estimates and is aimed at drawing conclusions from data (inference). 1. Population and parameters Population – collection of objects or persons with one or more characteristics (variables) in common. The set of things we wish to
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lecture1note - Psych 100A Fall 2009 Course Objectives Basic...

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