GEOFFREY MARCZYK, JD, PHD, is Assistant Professor at Widener University’s Institute for Graduate Clinical Psychology in Chester, Pennsylvania.DAVID DEMATTEO, JD, PHD, is a behavioral scientist at the Treatment Research Institute at the University of Pennsylvania in Philadelphia, Pennsylvania. DAVID FESTINGER, PHD, is a behavioral scientist at the Treatment Resarch Institute at the University of Pennsylvania in Philadelphia, Pennsylvania.

• Series Preface. Acknowledgments.One Introduction and Overview.Two Planning and Designing a Research Study.Three General Approaches for Controlling Artifact and Bias.Four Data Collection, Assessment Methods, and Measurement Strategies.Five General Types of Research Designs and Approaches.Six Validity.Seven Data Preparation, Analyses, and Interpretation.Eight Ethical Considerations in Research.Nine Disseminating Research Results and Distilling Principles of Research Design and Methodology.References.Index.

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GEOFFREY MARCZYK, JD, PHD, is Assistant Professor at Widener University’s Institute for Graduate Clinical Psychology in Chester, Pennsylvania.DAVID DEMATTEO, JD, PHD, is a behavioral scientist at the Treatment Research Institute at the University of Pennsylvania in Philadelphia, Pennsylvania. DAVID FESTINGER, PHD, is a behavioral scientist at the Treatment Resarch Institute at the University of Pennsylvania in Philadelphia, Pennsylvania.

• Series Preface. Acknowledgments.One Introduction and Overview.Two Planning and Designing a Research Study.Three General Approaches for Controlling Artifact and Bias.Four Data Collection, Assessment Methods, and Measurement Strategies.Five General Types of Research Designs and Approaches.Six Validity.Seven Data Preparation, Analyses, and Interpretation.Eight Ethical Considerations in Research.Nine Disseminating Research Results and Distilling Principles of Research Design and Methodology.References.Index.

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GEOFFREY MARCZYK, JD, PHD, is Assistant Professor at Widener University’s Institute for Graduate Clinical Psychology in Chester, Pennsylvania.DAVID DEMATTEO, JD, PHD, is a behavioral scientist at the Treatment Research Institute at the University of Pennsylvania in Philadelphia, Pennsylvania. DAVID FESTINGER, PHD, is a behavioral scientist at the Treatment Resarch Institute at the University of Pennsylvania in Philadelphia, Pennsylvania.

• Series Preface. Acknowledgments.One Introduction and Overview.Two Planning and Designing a Research Study.Three General Approaches for Controlling Artifact and Bias.Four Data Collection, Assessment Methods, and Measurement Strategies.Five General Types of Research Designs and Approaches.Six Validity.Seven Data Preparation, Analyses, and Interpretation.Eight Ethical Considerations in Research.Nine Disseminating Research Results and Distilling Principles of Research Design and Methodology.References.Index.

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