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Experimental Design
From User Studies to Psychophysics
Introduction
As computers proliferate and as the field of computer graphics matures, it has become increasingly important for computer scientists to understand how users perceive and interpret computer graphics.
Overview of the Book
Experimental Design: From User Studies to Psychophysics is an accessible introduction to psychological experiments and experimental design, covering the major components in the design, execution, and analysis of perceptual studies.
Concepts in Experimental Design
The book begins with an introduction to the concepts central to designing and understanding experiments, including developing a research question, setting conditions and controls, and balancing specificity with generality.
Types of Experimental Tasks
The book then explores in detail a number of types of experimental tasks: free description, rating scales, forced-choice, specialized multiple choice, and real-world tasks as well as physiological studies. It discusses the advantages and disadvantages of each type and provides examples of that type of experiment from the authors' own work.
Stimulus-Related Issues
The book also covers stimulus-related issues, including popular stimulus resources.
Statistical Techniques
It concludes with a thorough examination of statistical techniques for analyzing results, including methods specific to individual tasks.