Ch01A+Lecture

Ch01A+Lecture - CHAPTER 1 An Introduction to Statistics and...

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CHAPTER 1 An Introduction to Statistics and Research Design: The Elements of Statistical Reasoning
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“The joy of statistics is its ability to satisfy this deep human impulse called curiosity by separating chance from pattern.” -Nolan & Heinzen, 2007
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Two Branches of Statistics: Growing Our Knowledge about Human Behavior Descriptive statistics Organizing, summarizing, and communicating numerical information Inferential statistics Using samples to draw conclusions about a population
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Distinguishing Between a Sample and a Population Population of the world Population of United States or sample from the world Population of our school or sample from our country » Population of our class or sample from our school
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Variable Any characteristic of the unit of study (typically a person) that varies.
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Variables Transforming observations into numbers An example: Stroop Test. Reaction Time. The time to say the colors compared to the time to say the word.
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Stroop Demonstration Look at the following words and say each word as quickly as you can:
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WHITE RED GREEN BROWN
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Now look at the following words and say the
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This note was uploaded on 09/30/2011 for the course PSY 3301 taught by Professor Staff during the Spring '08 term at Texas State.

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Ch01A+Lecture - CHAPTER 1 An Introduction to Statistics and...

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