Data and Variables · Frequency Distributions · Probability · Statistics

The Middle · The Spread
Standard Deviation
Root Mean Square Error (RMSE)
Standard Error of the Estimate (SEE)
Percentile Ranges

Difference in Means
Correlation Coefficient
Relative Frequency
A Scale of Magnitudes

Shift in the Mean · Within-Subject Variation ·  Retest Correlation · Kappa Coefficient · Alpha Reliability

Sample Size for an Experiment · Individual Responses · Assessing an Individual · Spreadsheet for Assessing an Individual · Comparing Reliability of Measures · Sample Sizes for Reliability Studies

Introduction ·  Two Trials ·  Three or More Trials · Non-Uniform Error · Modeling Variances for Reliability · Biased Estimated of Reliability · Spreadsheet for Calculating Reliability

Introduction · Estimation Equation · Typical Error of Estimate · Correlation · Nominal Variables · Spreadsheet for Calculating Validity

Sample Size for a Cross-sectional Study · Assessing an Individual · Comparing Validity of Measures · Validity for Monitoring Changes · Sample Size for Validity Studies

Introduction · An Example · Effect of Sample Size on Confidence Interval · Confidence Interval and Statistical Significance · A Spreadsheet for Confidence Intervals · Bootstrapping · Meta-Analysis · Bayesian Analysis

What is a P Value? · Test Statistics · P Values and Confidence Intervals · Confidence Limits from a P Value · One Tail or Two? · Why 0.05? · Hypothesis Testing · Using P Values

Type I Error · Type II Error · Bias · Slideshow

Linear Regression
T Test and One-Way ANOVA
Contingency Table
Categorical Modeling

How a Stats Program Fits a Model · Parameters · Residuals · Goodness of Fit · Calculation of Confidence Limits · Independence of Observations · Normality of Sampling Distribution · Uniformity of Residuals · Uniformity of Residuals in Complex Models
Log Transformation for Better Fits · Percent Effects · More Examples
Non-Parametric Models: Rank Transformation
Ordinal Dependent Variables
Counts and Proportions as Dependent Variables · Binomial and Poisson Regression · Square-root and Arcsine-root Transformation
Linear and Non-Linear Models

More Than One Independent Variable · Controlling for Something · Interactions
Analysis of Covariance (ANCOVA)
Multiple Linear Regression · Stepwise Regression
Polynomial Regression
Two-Way ANOVA
More Than One Dependent Variable · Variables of Uncertain Status

Paired T Test: Two trials and no between-subjects effect
Two trials plus a between-subjects effect · Simple crossovers
Three or more trials and no between-subjects effect
Three or more trials plus a between-subjects effect · Multiple crossovers
Other Repeated-Measures Models
Proc Mixed for Repeated Measures
Regression to the Mean

Other Designs · On the Fly for the Ethical Committee · Do NOT Fly with Statistical Significance · Spreadsheet

Steps in the Process · Cross-Sectional Study · Longitudinal Study