Experimental Design

This book explains the basic terminology used to discuss experiments and takes a brief look at the more than 150 year history of experiments in psychology. It covers how to generalize from a few people to the whole population. The largest part of the book is dedicated to the most flexible, and arguably the most central, aspect of an experiment: What do the participants do? Each chapter follows the same structure and includes two examples, one from traditional psychophysics and one using computer animated facial expressions as stimuli.

Informationen zum Autor Cunningham, Douglas W.; Wallraven, Christian Klappentext This book explains the basic terminology used to discuss experiments and takes a brief look at the more than 150 year history has in psychology. It covers how to generalize from a few people to the whole population. The largest part of the book is dedicated to the most flexible, and arguably the most central, aspect of an experiment: What do the participants do? Each chapter follows the same structure and includes two examples, one from traditional psychophysics and on using computer animated facial expressions as stimuli. Zusammenfassung 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. 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. 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. 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. The book also covers stimulus-related issues, including popular stimulus resources. It concludes with a thorough examination of statistical techniques for analyzing results, including methods specific to individual tasks. Inhaltsverzeichnis INTRODUCTION: What Is an Experiment? Designing an Experiment. RESPONSE MEASURES: The Task. Free Description. Rating Scales. Forced Choice. Specialized Multiple Choice. Real-World Tasks. Physiology. STIMULI: Choosing Stimuli. Presenting Stimuli: The Psychtoolbox. DATA ANALYSIS: Statistical Issues. Free Description, Questionnaires, and Rating Scales. Force and Multiple Choice. Bibliography. ...

Auteur
Cunningham, Douglas W.; Wallraven, Christian

Résumé

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. 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.

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. 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. The book also covers stimulus-related issues, including popular stimulus resources. It concludes with a thorough examination of statistical techniques for analyzing results, including methods specific to individual tasks.

Contenu

INTRODUCTION: What Is an Experiment? Designing an Experiment. RESPONSE MEASURES: The Task. Free Description. Rating Scales. Forced Choice. Specialized Multiple Choice. Real-World Tasks. Physiology. STIMULI: Choosing Stimuli. Presenting Stimuli: The Psychtoolbox. DATA ANALYSIS: Statistical Issues. Free Description, Questionnaires, and Rating Scales. Force and Multiple Choice. Bibliography.