I am neither a statistician nor an R programmer, so all advice and code in this book comes without guarantee.
I am happy to accept corrections or suggestions. Send correspondence to mangiafico@njaes.rutgers.edu.
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Summary and Analysis of Extension Program Evaluation in R
Salvatore S. Mangiafico
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Contents
- Introduction
- Purpose of this Book
- Author of this Book
- Using R
- Statistics Textbooks and Other Resources
- Statistics for Educational Program Evaluation
- Why Statistics?
- Evaluation Tools and Surveys
- Variables, Descriptive Statistics, and Plots
- Types of Variables
- Descriptive Statistics
- Confidence Intervals
- Basic Plots
- Understanding Statistics and Hypothesis Testing
- Hypothesis Testing and p-values
- Reporting Results of Data and Analyses
- Choosing a Statistical Test
- Independent and Paired Values
- Likert Data
- Introduction to Likert Data
- Descriptive Statistics for Likert Item Data
- Descriptive Statistics with the likert Package
- Confidence Intervals for Medians
- Converting Numeric Data to Categories
- Traditional Nonparametric Tests
- Introduction to Traditional Nonparametric Tests
- One-sample Wilcoxon Signed-rank Test
- Sign Test for One-sample Data
- Two-sample Mann–Whitney U Test
- Mood’s Median Test for Two-sample Data
- Two-sample Paired Signed-rank Test
- Sign Test for Two-sample Paired Data
- Kruskal–Wallis Test
- Mood’s Median Test
- Friedman Test
- Quade Test
- Scheirer–Ray–Hare Test
- Aligned Ranks Transformation ANOVA
- Nonparametric Regression and Local Regression
- Nonparametric Regression for Time Series
- Permutation Tests
- Introduction to Permutation Tests
- One-way Permutation Test for Ordinal Data
- One-way Permutation Test for Paired Ordinal Data
- Permutation Tests for Medians and Percentiles
- Tests for Ordinal Data in Tables
- Association Tests for Ordinal Tables
- Measures of Association for Ordinal Tables
- Concepts for Linear Models
- Introduction to Linear Models
- Using Random Effects in Models
- What are Estimated Marginal Means?
- Estimated Marginal Means for Multiple Comparisons
- Factorial ANOVA: Main Effects, Interaction Effects, and Interaction Plots
- p-values and R-square Values for Models
- Accuracy and Errors for Models
- Ordinal Tests with Cumulative Link Models
- Introduction to Cumulative Link Models (CLM) for Ordinal Data
- Two-sample Ordinal Test with CLM
- Two-sample Paired Ordinal Test with CLMM
- One-way Ordinal Regression with CLM
- One-way Repeated Ordinal Regression with CLMM
- Two-way Ordinal Regression with CLM
- Two-way Repeated Ordinal Regression with CLMM
- Tests for Nominal Data
- Introduction to Tests for Nominal Variables
- Confidence Intervals for Proportions
- Goodness-of-Fit Tests for Nominal Variables
- Association Tests for Nominal Variables
- Measures of Association for Nominal Variables
- Tests for Paired Nominal Data
- Cochran–Mantel–Haenszel Test for 3-Dimensional Tables
- Cochran’s Q Test for Paired Nominal Data
- Models for Nominal Data
- Parametric Tests
- Introduction to Parametric Tests
- One-sample t-test
- Two-sample t-test
- Paired t-test
- One-way ANOVA
- One-way ANOVA with Blocks
- One-way ANOVA with Random Blocks
- Two-way ANOVA
- Repeated Measures ANOVA
- Correlation and Linear Regression
- Advanced Parametric Methods
- Transforming Data
- Normal Scores Transformation
- Analysis of Count Data and Percentage Data
- Regression for Count Data
- Beta Regression for Percent and Proportion Data
Author of this Book
©2016 by Salvatore S. Mangiafico.
Rutgers
Cooperative Extension, New Brunswick, NJ.
Non-commercial reproduction of this content, with
attribution, is permitted.
For-profit reproduction without permission
is prohibited.
If you use the code or information in this site in
a published work, please cite it as a source. Also, if you are an instructor and use this book in your course, please let me know.
My contact information is on the
About the Author of
this Book page.
Citation
Mangiafico, S.S. 2016. Summary and Analysis of Extension
Program Evaluation in R, version 1.20.05, revised 2023.
rcompanion.org/handbook/.
(Pdf version:
rcompanion.org/documents/RHandbookProgramEvaluation.pdf.)