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Lecture 19: Chapter 16 David Wallace Croft Statistics for Psychology 2005 Jul 15 Fri Copyright 2005 David Wallace Croft This work is licensed under the Creative Commons Attribution License 2.0.

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Quiz Please mute your mobile phones Write your name on a blank standard size piece of paper Quiz will begin at 09:00 When done –Turn your paper over –Put your pen down Writing an answer after I say “Pens down” is cheating Pass your quizzes to the center

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Outline Administrative Chapter 16 Emphasis Next Class Exam 6 Review Exam 7 Prep Questions

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Administrative Exam 7 will be open book / open notes Exam 7 will cover previous material 50 questions total 25 questions on Chapters 1 through 4 25 questions on Chapters 15 and 16 Exam 8: Jul 25 Mon 09:00 Makeup Exams: Jul 27 Wed 09:00

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Chapter 16 Integrating What You Have Learned: The General Linear Model Aron and Aron, “Statistics for Psychology”, 3 rd Ed., 2003.

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Emphasis Look at it sideways Regression vs. Correlation Bivariate regression/correlation t is square root of F r can be used to compute t Assign numbers to nominal values Triangles Nominal coding Comparison to artificial neuron Causality

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Neural Networks = Statistics Multiple Regression Ŷ = a + (b 1 )(X 1 ) + (b 2 )(X 2 ) + (b 3 )(X 3 ) General Linear Model Y = a + (b 1 )(X 1 ) + (b 2 )(X 2 ) + (b 3 )(X 3 ) + e Squared error: e 2 = ( Y – Ŷ ) 2 Neural network learning algorithms minimize Nonlinearity and interaction effects Correlation and Hebbian learning

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Next Class Monday Open book exam on Chapters 1-4, 15, 16 Wednesday Quiz at start of class on Chapter 17 Friday Quiz at start of class on Chapter W3

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Exam 6 Review Class Average ……….: 5.0 Standard Deviation ….: 1.16 High Score ……………: 8 Low Score …………….: 3

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Exam 7 Prep Chapters 1-4, 15, 16 Open Book / Open Notes “Pens down” at 10:15 Mean, Median, and Mode Standard Deviation Nonlinear Transformation

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Questions Don’t pack up to leave just yet Questions about lecture before we dismiss? Post additional questions to discussion electronic mailing list unless personal –http://egroups.com/group/utd-statistics

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