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Descriptive statistics

Unit 2 AP Psychology

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UNIT 2 NOTES: Research Methods The Need for Psychological Science Critical Thinking thinking that does not blindly accept arguments and conclusions examines assumptions discerns hidden values evaluates evidence Three hurdles that tend to skew our logic: Hindsight Bias The tendency to believe, after learning the outcome, that you knew it all along Overconfidence We tend to think we know more than we do The Barnum Effect It is the tendency for people to accept very general or vague characterizations of themselves and take them to be accurate Applied V. Basic Research Applied Research has clear, practical applications. Basic Research explores questions that you may be curious about, but not intended to be immediately used The Scientific Method Theory

Statistics (Myers)

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AP Psychology Statistics Unit 2: Statistics Reading Questions Module 7: pages 56-61 What is ?the point to remember? about statistics? The point to remember about statistics is doubt big, round, and undocumented numbers. What are descriptive statistics? Descriptive statistics is the numerical data used to measure and describe characteristics of groups; includes measures of central tendency and measures of variation. What is the ?fancy? name for a bar graph? A histogram is a bar graph depicting a frequency distribution. What is meant by measure of central tendency? A measure of central tendency is a single score that represents a whole set of scores. Define mode, median & mean. Mode: the most frequently occurring score(s) in a distribution

AP Stats ch A Variance Analysis

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Chapter Number and Title 813 Post-Exam Topic Analysis of Variance chap15.2EY 7/31/02 2:41 PM Page 813 A 814 Chapter Number and Title W. EDWARDS DEMING Statistics in the Service of Quality From one point of view, statistics is about understanding variation. Reducing variation in products and processes is the central theme of statistical quality control. So it is not surprising that a statistician should become the leading guru of quality management. In the final decades of his long life, W. Edwards Deming (1900?1993) was one of the world?s most influential con- sultants to management. Deming grew up in Wyoming and earned a doctorate in physics at Yale. Working for the U.S. Department of Agriculture in the 1930s, he became

STATISTICS!!

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Statistics Review Test 1 College Now Chapter 1: ? Data consists of information coming from observations, counts, measurements, or responses. The singular for data is datum. ? Statistics is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions. ? A population is the collection of all outcomes, responses, measurements, or counts that are of interest. ? A sample is a subset of a population. ? A Parameter is a numerical description of a Population characteristic. ? A Statistic is a numerical description of a sample characteristic. ? Descriptive statistics ? branch of statistics that deals with the organization, summarization, and display of data
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