Growth Curve Analysis and Visualization Using R 1st edition By Daniel Mirman – Ebook PDF Instant Download/Delivery: 1466584327, 9781466584327
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Product details:
ISBN 10: 1466584327
ISBN 13: 9781466584327
Author: Daniel Mirman
An increasingly prominent statistical tool in the behavioral sciences, multilevel regression offers a statistical framework for analyzing longitudinal or time course data. It also provides a way to quantify and analyze individual differences, such as developmental and neuropsychological, in the context of a model of the overall group effects. To harness the practical aspects of this useful tool, behavioral science researchers need a concise, accessible resource that explains how to implement these analysis methods.
Growth Curve Analysis and Visualization Using R provides a practical, easy-to-understand guide to carrying out multilevel regression/growth curve analysis (GCA) of time course or longitudinal data in the behavioral sciences, particularly cognitive science, cognitive neuroscience, and psychology. With a minimum of statistical theory and technical jargon, the author focuses on the concrete issue of applying GCA to behavioral science data and individual differences.
The book begins with discussing problems encountered when analyzing time course data, how to visualize time course data using the ggplot2 package, and how to format data for GCA and plotting. It then presents a conceptual overview of GCA and the core analysis syntax using the lme4 package and demonstrates how to plot model fits. The book describes how to deal with change over time that is not linear, how to structure random effects, how GCA and regression use categorical predictors, and how to conduct multiple simultaneous comparisons among different levels of a factor. It also compares the advantages and disadvantages of approaches to implementing logistic and quasi-logistic GCA and discusses how to use GCA to analyze individual differences as both fixed and random effects. The final chapter presents the code for all of the key examples along with samples demonstrating how to report GCA results.
Throughout the book, R code illustrates how to implement the analyses and generate the graphs. Each chapter ends with exercises to test your understanding. The example datasets, code for solutions to the exercises, and supplemental code and examples are available on the author’s website.
Growth Curve Analysis and Visualization Using R 1st Table of contents:
Time Course Data
Chapter overview
What are “time course data”?
Key challenges in analyzing time course data
Visualizing time course data
Formatting data for analysis and plotting
Conceptual Overview of Growth Curve Analysis
Chapter overview
Structure of a growth curve model
A simple growth curve analysis
Another example: Visual search response times
When Change over Time Is Not Linear
Chapter overview
Choosing a functional form
Using higher-order polynomials
Example: Word learning
Parameter-specific p-values
Reporting growth curve analysis results
Structuring Random Effects
Chapter overview
“Keep it maximal”
Within-participant effects
Participants as random vs. fixed effects
Visualizing effects of polynomial time terms
Categorical Predictors
Chapter overview
Coding categorical predictors
Multiple comparisons
Binary Outcomes: Logistic GCA
Chapter overview
Why binary outcomes need logistic analyses
Logistic GCA
Quasi-logistic GCA: Empirical logit
Plotting model fits
Individual Differences
Chapter overview
Individual differences as fixed effects
Individual differences as random effects
Complete Examples
Linear change
Orthogonal polynomials
Within-subject manipulation
Logistic GCA
Quasi-logistic GCA
Individual differences as fixed effects
Individual differences as random effects
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