Introduction to statistics, cap.1 Percentages, graphs and measures of central tendency, cap.2 Variability, cap.3 The normal curve and z scores, cap.4 Z scores revisited: T scores and other normal curve transformations, cap.5 Probability, cap.6 Statistics and parameters, cap.7 Parameter estimates and hypothesis testing, cap.8 The fundamentals of research methology, cap.9 The hypothesis of difference, cap.10 The hypothesis of association: Correlation, cap.11 Analysis of variance, cap.12 Nominal data and the chi square, cap.13 Regression analysis, cap.14 Repeated-measures and matched-subjects designs with interval data, cap.15 Nonparametrics revisited: The ordinal case, cap.16 Tests and measurements, cap.17 Computers and statistical analysis, cap.18 Research simulations: Choosing the correct statistical test, cap.19