| Preface to the Instructor |
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xiii | (8) |
| Introduction to the Student |
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xxi | |
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1 Displaying the Order in a Group of Numbers |
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1 | (29) |
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The Two Branches of Statistical Methods |
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2 | (1) |
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2 | (1) |
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Box 1-1: Important Trivia for Poetic Statistics Students |
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3 | (2) |
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How to Make a Frequency Table |
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5 | (2) |
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7 | (4) |
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11 | (1) |
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Box 1-2: Math Anxiety, Statistics Anxiety, and You: A Message for Those of You Who Are Truly Worried About This Course |
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12 | (3) |
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15 | (3) |
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Shapes of Frequency Distributions |
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18 | (4) |
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Controversies and Limitations |
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22 | (2) |
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Box 1-3: Gender, Ethnicity, and Math Performance |
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24 | (1) |
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Frequency Tables, Histograms, and Frequency Polygons in Research Articles |
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25 | (2) |
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27 | (1) |
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28 | (1) |
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28 | (2) |
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2 The Mean, Variance, Standard Deviation, and Z Scores |
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30 | (32) |
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31 | (4) |
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Alternative Measures of Central Tendency |
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35 | (4) |
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The Variance and the Standard Deviation |
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39 | (8) |
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47 | (1) |
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Box 2-1: The Sheer Joy (Yes, Joy) of Statistical Analysis |
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48 | (6) |
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Controversies and Limitations: The Tyranny of the Mean |
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54 | (2) |
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The Mean and Standard Deviation As Described in Research Articles |
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56 | (2) |
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58 | (1) |
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59 | (1) |
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59 | (1) |
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Chapter Appendix: Optional Computational Formulas for the Variance and the Standard Deviation |
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60 | (2) |
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62 | (38) |
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Independent or Predictor Variables and Dependent Variables |
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64 | (1) |
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Graphing Correlations: The Scatter Diagram |
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65 | (3) |
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68 | (4) |
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Computing an Index of Degree of Linear Correlation: The Pearson Correlation Coefficient |
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72 | (2) |
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Box 3-1: Galton: Gentleman Genius |
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74 | (5) |
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Integrating the Steps and Additional Examples |
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79 | (5) |
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Testing the Statistical Significance of the Correlation of the Correlation Coefficient |
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84 | (1) |
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Box 3-2: Illusory Correlation: When You Know Perfectly Well That If It's Big, It's Fat--and You Are Perfectly Wrong |
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85 | (1) |
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Issues in Interpreting the Correlation Coefficient |
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86 | (2) |
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Controversies and Recent Developments: What Is a Large Correlation? |
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88 | (3) |
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Correlation Coefficients As Described in Research Articles |
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91 | (1) |
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92 | (1) |
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93 | (1) |
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94 | (2) |
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Chapter Appendix I: Optional Computational Formula for the Correlation Coefficient |
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96 | (2) |
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Chapter Appendix II: Hypothesis Tests and Power for the Correlation Coefficient |
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98 | (2) |
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100 | (34) |
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Terminology of Bivariate Prediction |
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101 | (1) |
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The Bivariate Prediction Model With Z Scores |
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102 | (2) |
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Bivariate Prediction Using Raw Scores |
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104 | (2) |
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106 | (2) |
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Error and Proportionate Reduction in Error |
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108 | (6) |
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Another Example of Bivariate Prediction |
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114 | (3) |
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Extension to Multiple Regression and Correlation |
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117 | (5) |
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Box 4-1: Clinical Versus Statistical Prediction |
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122 | (3) |
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Controversies and Limitations |
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125 | (1) |
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Prediction Models As Described in Research Articles |
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126 | (2) |
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128 | (1) |
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129 | (1) |
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129 | (5) |
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5 Some Key Ingredients for Inferential Statistics: The Normal Curve, Probability, and Population Versus Sample |
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134 | (26) |
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135 | (2) |
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Box 5-1: DeMoivre, the Eccentric Stranger Who Invented the Normal Curve |
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137 | (6) |
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143 | (2) |
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Box 5-2: Pascal Begins Probability Theory at the Gambling Table, Then Learns to Bet on God |
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145 | (2) |
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147 | (3) |
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Box 5-3: Surveys, Polls, and 1948's Costly "Free Sample" |
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150 | (1) |
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Relation of Normal Curve, Probability, and Sample Versus Population |
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151 | (1) |
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Controversies and Limitations |
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152 | (3) |
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Normal Curves, Probabilities, Samples, and Populations in Research Articles |
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155 | (1) |
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156 | (1) |
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157 | (1) |
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157 | (1) |
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Chapter Appendix: Probability Rules and Conditional Probabilities |
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158 | (2) |
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6 Introduction to Hypothesis Testing |
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160 | (24) |
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A Hypothesis-Testing Example |
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162 | (1) |
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The Core Logic of Hypothesis Testing |
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163 | (1) |
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The Hypothesis-Testing Process |
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163 | (7) |
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Box 6-1: To Be or Not to Be--But Can Not Being Be? The Problem of Whether and When to Accept the Null Hypothesis |
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170 | (2) |
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One-Tailed and Two-Tailed Hypothesis Tests |
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172 | (5) |
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Controversies and Limitations |
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177 | (2) |
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Hypothesis Tests As Reported in Research Articles |
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179 | (1) |
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180 | (1) |
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181 | (1) |
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181 | (3) |
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7 Hypothesis Tests With Means of Samples |
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184 | (28) |
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The Distribution of Means |
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185 | (1) |
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Constructing a Distribution of Means |
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186 | (2) |
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Characteristics of a Distribution of Means |
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188 | (6) |
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Hypothesis Testing Involving a Distribution of Means |
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194 | (1) |
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Box 7-1: More About Polls: Sampling Errors and Errors in Thinking About Samples |
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195 | (6) |
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Estimation and Confidence Intervals |
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201 | (4) |
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Controversies and Limitations: Confidence Intervals or Significance Tests? |
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205 | (2) |
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Standard Deviation of the Distribution of Sample Means, Hypothesis Tests About Means of Samples, and Confidence Intervals As Described in Research Articles |
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207 | (2) |
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209 | (1) |
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210 | (1) |
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210 | (2) |
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8 Statistical Power and Effect Size |
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212 | (40) |
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What Is Statistical Power? |
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213 | (3) |
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216 | (3) |
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Calculating Statistical Power |
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219 | (4) |
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223 | (1) |
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What Determines the Power of a Study? |
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223 | (1) |
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224 | (7) |
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231 | (3) |
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Box 8-1: The Power of Typical Psychology Experiments |
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234 | (1) |
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Other Influences on Power |
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235 | (1) |
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Role of Power When Designing an Experiment |
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236 | (4) |
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Importance of Power in Evaluating the Results of a Study |
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240 | (2) |
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Power, Effect Size, and Confidence Intervals |
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242 | (1) |
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242 | (1) |
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Box 8-2: Effect Sizes for Relaxation and Meditation: A Restful Meta-Analysis |
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243 | (1) |
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Controversies and Limitations: Statistical Significance Controversy Continued--Effect Size Versus Statistical Significance |
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244 | (2) |
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Power and Effect Size As Described in Research Articles |
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246 | (2) |
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248 | (1) |
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249 | (1) |
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249 | (3) |
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9 The t Test for Dependent Means |
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252 | (36) |
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Box 9-1: William S. Gosset, Alias "Student": Not a Mathematician, but a "Practical Man" |
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254 | (1) |
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Introduction to the t Test: The t Test for a Single Sample |
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255 | (11) |
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The t Test for Dependent Means |
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266 | (10) |
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Assumptions of the t Test |
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276 | (1) |
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Effect Size and Power for the t Test for Dependent Means |
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276 | (4) |
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Box 9-2: The Power of Studies Using Difference Scores: How the Lanarkshire Milk Experiment Could Have Been Milked for More |
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280 | (1) |
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Controversies and Limitations |
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280 | (1) |
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t Tests As Described in Research Articles |
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281 | (2) |
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283 | (1) |
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284 | (1) |
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284 | (3) |
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Chapter Appendix: Optional Computational Formulas for the t Test for Dependent Means |
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287 | (1) |
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10 The t Test for Independent Means |
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288 | (30) |
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Basic Strategy of the t Test for Independent Means: The Distribution of Differences Between Means |
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289 | (6) |
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Steps of Hypothesis Testing With a t Test for Independent Means |
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295 | (9) |
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Assumptions of the t Test for Independent Means |
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304 | (1) |
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Effect Size and Power for the t Test for Independent Means |
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305 | (1) |
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Box 10-1: Monte Carlo Methods, or When Mathematics Becomes Just an Experiment and Statistics Depend on a Game of Chance |
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306 | (3) |
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Controversies and Limitations |
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309 | (1) |
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The t Test for Independent Means As Described in Research Articles |
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310 | (3) |
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313 | (1) |
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314 | (1) |
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314 | (2) |
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Chapter Appendix: Optional Computational Formulas for the t Test for Independent Means |
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316 | (2) |
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11 Introduction to the Analysis of Variance |
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318 | (30) |
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Basic Logic of the Analysis of Variance |
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320 | (6) |
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Box 11-1: Sir Ronald Fisher, Caustic Genius of Statistics |
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326 | (2) |
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Carrying Out an Analysis of Variance |
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328 | (7) |
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Hypothesis Testing With the Analysis of Variance |
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335 | (2) |
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Assumptions in the Analysis of Variance |
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337 | (1) |
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Effect Size and Power for the Analysis of Variance |
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338 | (4) |
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Controversies and Limitations: Random Assignment Versus Systematic Selection |
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342 | (1) |
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Analyses of Variance As Described in Research Articles |
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343 | (1) |
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344 | (1) |
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345 | (1) |
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345 | (3) |
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12 The Structural Model in the Analysis of Variance |
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348 | (28) |
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Principles of the Structural Model |
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350 | (3) |
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Box 12-1: Analysis of Variance As a Way of Thinking About the World |
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353 | (1) |
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Using the Structural Model to Conduct an Analysis of Variance |
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354 | (1) |
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Analysis of Variance Tables |
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355 | (1) |
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Analysis of Variance With Unequal-Sized Groups |
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356 | (6) |
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Summary of Procedures for Computing an Analysis of Variance Using the Structural Model |
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362 | (1) |
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362 | (3) |
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Assumptions in the Analysis of Variance With Unequal Sample Sizes |
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365 | (1) |
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366 | (2) |
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Controversies, Limitations, and Recent Developments |
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368 | (1) |
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Structural Model Analysis of Variance and Multiple Comparisons As Described in Research Articles |
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369 | (2) |
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371 | (1) |
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371 | (1) |
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372 | (3) |
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Chapter Appendix I: Optional Computational Formulas for the Sums of Squares in a One-Way Analysis of Variance |
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375 | (1) |
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13 Factorial Analysis of Variance |
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376 | (50) |
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Basic Logic of Factorial Designs and Interaction Effects |
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377 | (12) |
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Basic Logic of the Two-Way Analysis of Variance |
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389 | (2) |
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Box 13-1: Personality and Situational Influences on Behavior: An Interaction Effect |
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391 | (16) |
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Power and Effect Size in the Factorial Analysis of Variance |
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407 | (4) |
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Extensions and Special Cases of the Factorial Analysis of Variance |
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411 | (1) |
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Controversies, Limitations, and Recent Developments |
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412 | (3) |
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Factorial Analysis of Variance Results As Reported in Research Articles |
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415 | (1) |
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416 | (1) |
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417 | (1) |
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417 | (4) |
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Chapter Appendix I: Optional Computational Formulas for the Two-Way Analysis of Variance |
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421 | (2) |
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Chapter Appendix II: One-Way Repeated-Measures Analysis of Variance |
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423 | (3) |
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426 | (32) |
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The Chi-Square Statistic and the Chi-Square Test for Goodness of Fit |
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428 | (1) |
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Box 14-1: Karl Pearson, Inventor of Chi-Square and Center of Controversy |
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429 | (8) |
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Chi-Square Test for Independence |
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437 | (10) |
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Assumptions for Chi-Square Tests |
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447 | (1) |
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Effect Size and Power for Chi-Square Tests for Independence |
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447 | (4) |
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Controversies and Limitations |
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451 | (1) |
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Chi-Square Tests As Reported in Research Articles |
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452 | (1) |
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453 | (1) |
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454 | (1) |
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454 | (4) |
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15 Strategies When Population Distributions Are Not Normal: Data Transformations, Rank-Order Tests, and Computer-Intensive Methods |
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458 | (30) |
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Assumptions in the Standard Hypothesis-Testing Procedures |
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459 | (2) |
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461 | (9) |
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470 | (4) |
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Computer-Intensive Methods |
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474 | (5) |
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479 | (1) |
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Box 15-1: Where Do Random Numbers Come From? |
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480 | (2) |
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482 | (1) |
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Procedures Used When Populations Appear Nonnormal As Described in Research Articles |
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482 | (2) |
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484 | (1) |
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485 | (1) |
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485 | (3) |
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16 Integrating What You Have Learned: The General Linear Model |
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488 | (30) |
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The Relationships Among Major Statistical Methods |
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489 | (1) |
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Review of the Principles of Multiple Regression and Correlation |
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490 | (2) |
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Introduction to the General Linear Model |
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492 | (1) |
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The General Linear Model and Multiple Regression/Correlation |
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493 | (1) |
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Bivariate Regression and Correlation As Special Cases of Multiple Regression/Correlation |
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493 | (1) |
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The t Test As a Special Case of the Analysis of Variance |
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493 | (2) |
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Box 16-1: The Golden Age of Statistics: Four Guys Around London |
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495 | (3) |
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The t Test As a Special Case of the Significance Test for the Correlation Coefficient |
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498 | (5) |
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The Analysis of Variance As a Special Case of the Significance Test of the Multiple Correlation Coefficient |
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503 | (6) |
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Box 16-2: Two Women Make a Point About Gender and Statistics |
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509 | (1) |
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Choice of Statistical Tests |
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510 | (2) |
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Assumptions and the General Linear Model |
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512 | (1) |
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Controversies and Limitations |
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512 | (2) |
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514 | (1) |
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515 | (1) |
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515 | (3) |
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17 Making Sense of Advanced Statistical Procedures in Research Articles |
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518 | (33) |
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Brief Review of Multiple Regression and Correlation |
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520 | (1) |
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Hierarchial and Stepwise Multiple Regression |
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521 | (3) |
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524 | (2) |
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526 | (2) |
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528 | (2) |
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530 | (4) |
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Analysis of Covariance (ANCOVA) |
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534 | (1) |
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Multivariate Analysis of Variance (MANOVA) and Multivariate Analysis of Covariance (MANCOVA) |
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535 | (2) |
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Overview of Statistical Techniques |
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537 | (1) |
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Box 17-1: The Forced Marriage of Fisher and Neyman-Pearson |
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538 | (1) |
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Controversy: Should Statistics Be Controversial? |
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538 | (2) |
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How to Read Results in Research Articles Involving Unfamiliar Statistical Techniques |
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540 | (2) |
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542 | (1) |
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543 | (1) |
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543 | (8) |
| Appendix A Overview of the Logic and Language of Psychology Research |
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551 | (12) |
| The Traditionally Ideal Research Approach |
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552 | (1) |
| Equivalence of Participants in Experimental and Control Groups |
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553 | (5) |
| Equivalence of Circumstances for Experimental and Control Groups |
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558 | (1) |
| Representativeness of the Sample |
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559 | (1) |
| Measurement |
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560 | (2) |
| Key Terms |
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562 | (1) |
| Appendix B Tables |
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563 | (8) |
| Table B-1 Normal Curve Areas: Percentage of the Normal Curve Between the Mean and the Z Scores Shown |
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563 | (3) |
| Table B-2 Cutoff Scores for the t Distribution |
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566 | (1) |
| Table B-3 Cutoff Scores for the F Distribution |
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567 | (3) |
| Table B-4 Cutoff Scores for the Chi-Square Distribution |
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570 | (1) |
| Table B-5 Index to Power Tables and Tables Giving Number of Participants Needed for 80% Power |
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570 | (1) |
| Answers to Set I Practice Problems |
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571 | (40) |
| Glossary |
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611 | (10) |
| Glossary of Symbols |
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621 | (2) |
| References |
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623 | (8) |
| Index |
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631 | |