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Experimental and Quasi-Experimental Designs for Research

Experimental and Quasi-Experimental Designs for Research

by Donald T. Campbell,Julian C. Stanley

  • Publisher : Ravenio Books
  • Release : 2015-09-03
  • Pages : 84
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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We shall examine the validity of 16 experimental designs against 12 common threats to valid inference. By experiment we refer to that portion of research in which variables are manipulated and their effects upon other variables observed. It is well to distinguish the particular role of this chapter. It is not a chapter on experimental design in the Fisher (1925, 1935) tradition, in which an experimenter having complete mastery can schedule treatments and measurements for optimal statistical efficiency, with complexity of design emerging only from that goal of efficiency. Insofar as the designs discussed in the present chapter become complex, it is because of the intransigency of the environment: because, that is, of the experimenter’s lack of complete control.

Experimental and Quasi-experimental Designs for Generalized Causal Inference

Experimental and Quasi-experimental Designs for Generalized Causal Inference
A Book

by WS. SHADISH,William R. Shadish,Thomas D. Cook,Donald Thomas Campbell

  • Publisher : Wadsworth Publishing Company
  • Release : 2002
  • Pages : 623
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Sections include: experiments and generalised causal inference; statistical conclusion validity and internal validity; construct validity and external validity; quasi-experimental designs that either lack a control group or lack pretest observations on the outcome; quasi-experimental designs that use both control groups and pretests; quasi-experiments: interrupted time-series designs; regresssion discontinuity designs; randomised experiments: rationale, designs, and conditions conducive to doing them; practical problems 1: ethics, participation recruitment and random assignment; practical problems 2: treatment implementation and attrition; generalised causal inference: a grounded theory; generalised causal inference: methods for single studies; generalised causal inference: methods for multiple studies; a critical assessment of our assumptions.

Experimental and Quasi-experimental Designs for Research

Experimental and Quasi-experimental Designs for Research
A Book

by Donald Thomas Campbell,Julian C. Stanley

  • Publisher : Unknown Publisher
  • Release : 1973
  • Pages : 84
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Quasi-experimentation

Quasi-experimentation
Design & Analysis Issues for Field Settings

by Thomas D. Cook,Donald Thomas Campbell

  • Publisher : Wadsworth Publishing Company
  • Release : 1979
  • Pages : 405
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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This book presents some quasi-experimental designs and design features that can be used in many social research settings. The designs serve to probe causal hypotheses about a wide variety of substantive issues in both basic and applied research. Each design is assessed in terms of four types of validity, with special stress on internal validity. Although general conclusions are drawn about the strengths and limitations of each design, emphasis is also placed on the fact that the relevant threats to valid inference are specific to each research setting. Consequently, a threat that is usually associated with a particular design need not invariably be associated with that design.

Quasi-Experimental Research Designs

Quasi-Experimental Research Designs
A Book

by Bruce A. Thyer

  • Publisher : Oxford University Press
  • Release : 2012-02-16
  • Pages : 203
  • ISBN : 0195387384
  • Language : En, Es, Fr & De
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This pocket guide describes the logic, design, and conduct of the range of such designs, encompassing pre-experiments, quasi-experiments making use of a control or comparison group, and time-series designs. While it can be utilized as a manual, this book is also valuable for practitioners seeking a greater conceptual understanding of quasi-experimental studies in social work literature. Human service professionals planning to undertake a program evaluation of their agency's services will find this book helpful in understanding the steps and actions needed to adopt a quasi-experimental strategy.

Experimental and Quasi-Experimental Designs for Field Research

Experimental and Quasi-Experimental Designs for Field Research
A Book

by William R. Shadish

  • Publisher : Psychology Press
  • Release : 2011-04-01
  • Pages : 129
  • ISBN : 9780805848250
  • Language : En, Es, Fr & De
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Experimental and Quasi-experimental Designs for Research on Teaching

Experimental and Quasi-experimental Designs for Research on Teaching
A Book

by Donald Thomas Campbell,Julian C. Stanley

  • Publisher : Unknown Publisher
  • Release : 1963
  • Pages : 152
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Quasi-experimental and Experimental Approaches to Environmental Economics

Quasi-experimental and Experimental Approaches to Environmental Economics
A Book

by Michael Greenstone,Ted Gayer,Massachusetts Institute of Technology. Center for Energy and Environmental Policy Research

  • Publisher : Unknown Publisher
  • Release : 2007
  • Pages : 58
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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This paper argues that an increased application of quasi-experimental and experimental techniques will improve understanding about core environmental economics questions. This argument is supported by a review of the limitations of associational evidence in assessing causal hypotheses. The paper also discusses the benefits of experiments and quasi-experiments, outlines some quasi-experimental methods, and highlights threats to their validity. It then illustrates the quasi-experimental method by assessing the validity of a quasi-experiment that aims to estimate the impact of the Endangered Species Act on property markets in North Carolina. The paper's larger argument is that greater application of experimental and quasi-experimental techniques can identify efficient policies that increase social welfare.

Quasi-experimental Designs

Quasi-experimental Designs
A Book

by John F. Stevenson

  • Publisher : Unknown Publisher
  • Release : 2020
  • Pages : 129
  • ISBN : 9781529750003
  • Language : En, Es, Fr & De
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Selection Bias in the Estimation of Experimental and Quasi-experimental Effects

Selection Bias in the Estimation of Experimental and Quasi-experimental Effects
A Book

by Robert A. Moffitt

  • Publisher : Unknown Publisher
  • Release : 1977
  • Pages : 20
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Experimental and Quasi-experimental Designs for Research

Experimental and Quasi-experimental Designs for Research
By Donald T. Campbell and Julian C. Stanley

by Donald Thomas Campbell

  • Publisher : Unknown Publisher
  • Release : 1963
  • Pages : 84
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Advances in Quasi-Experimental Design and Analysis

Advances in Quasi-Experimental Design and Analysis
A Book

by William M. K. Trochim

  • Publisher : Jossey-Bass
  • Release : 1986-11-04
  • Pages : 113
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The intent of this volume of New Directions for Program Evaluation is to update, even to alter, our thinking about quasi-experimentation in applied social research and program evaluation. This volume makes the case that we have moved beyond the traditional thinking on quasi-experiments as a collection of specific designs and threats to validity toward a more integrated, synthetic view of quasi-experimentation as part of a general logical epistemological framework for research. This is the 31st issue of New Directions for Program Evaluation. For more information on the series, please see the Journals and Periodicals page.

Using Propensity Scores in Quasi-Experimental Designs

Using Propensity Scores in Quasi-Experimental Designs
A Book

by William M. Holmes

  • Publisher : SAGE Publications, Incorporated
  • Release : 2013-06-10
  • Pages : 360
  • ISBN : 9781452205267
  • Language : En, Es, Fr & De
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Using Propensity Scores in Quasi-Experimental Designs, by William M. Holmes, examines how propensity scores can be used to reduce bias with different kinds of quasi-experimental designs and to fix or improve broken experiments. Requiring minimal use of matrix and vector algebra, the book covers the causal assumptions of propensity score estimates and their many uses, linking these uses with analysis appropriate for different designs. Thorough coverage of bias assessment, propensity score estimation, and estimate improvement is provided, along with graphical and statistical methods for this process. Applications are included for analysis of variance and covariance, maximum likelihood and logistic regression, two-stage least squares, generalized linear regression, and general estimation equations. The examples use public data sets that have policy and programmatic relevance across a variety of disciplines.

Using Propensity Scores in Quasi-Experimental Designs

Using Propensity Scores in Quasi-Experimental Designs
A Book

by William M. Holmes

  • Publisher : SAGE Publications
  • Release : 2013-06-10
  • Pages : 360
  • ISBN : 1483310817
  • Language : En, Es, Fr & De
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Using Propensity Scores in Quasi-Experimental Designs, by William M. Holmes, examines how propensity scores can be used to reduce bias with different kinds of quasi-experimental designs and to fix or improve broken experiments. Requiring minimal use of matrix and vector algebra, the book covers the causal assumptions of propensity score estimates and their many uses, linking these uses with analysis appropriate for different designs. Thorough coverage of bias assessment, propensity score estimation, and estimate improvement is provided, along with graphical and statistical methods for this process. Applications are included for analysis of variance and covariance, maximum likelihood and logistic regression, two-stage least squares, generalized linear regression, and general estimation equations. The examples use public data sets that have policy and programmatic relevance across a variety of disciplines.

Policing Schools' Strategies

Policing Schools' Strategies
A SySTEMatic Search for Experimental and Quasi-experimental Studies

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2012
  • Pages : 75
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Bias in the Estimates of Treatment Effects in Quasi-experimental Evaluations

Bias in the Estimates of Treatment Effects in Quasi-experimental Evaluations
A Book

by Burt S. Barnow

  • Publisher : Unknown Publisher
  • Release : 1978
  • Pages : 34
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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A Reader for Experimental and Quasi-experimental Designs

A Reader for Experimental and Quasi-experimental Designs
A Book

by R. Frank Falk

  • Publisher : Unknown Publisher
  • Release : 1976
  • Pages : 262
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Graphical Models for Quasi-Experimental Designs

Graphical Models for Quasi-Experimental Designs
A Book

by Yongnam Kim,Peter M. Steiner,Courtney E. Hall,Dan Su

  • Publisher : Unknown Publisher
  • Release : 2016
  • Pages : 11
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Experimental and quasi-experimental designs play a central role in estimating cause-effect relationships in education, psychology, and many other fields of the social and behavioral sciences. This paper presents and discusses the causal graphs of experimental and quasi-experimental designs. For quasi-experimental designs the authors demonstrate that a causal treatment effect can be identified if they can isolate a subpopulation whose graph resembles the graph of an randomized controlled trial (RCT). For regression discontinuity (RD) designs, the corresponding subpopulation is given by the population in the very close neighborhood around the cutoff score; for the instrumental variable (IV) design, it is the subpopulation of compliers; for matching designs, it is the matched population and for propensity stratification (PS); for weighting designs it is the stratified or weighted population. The causal graphs also show that the identification of causal effects rests on stronger assumptions as the researchers' control over the study diminishes. More control usually implies the simpler data-generating mechanism and, thus, relative ease of identification. Figures are provided in the appendix. [SREE documents are structured abstracts of SREE conference symposium, panel, and paper or poster submissions.].

Encouraging Payment for Services

Encouraging Payment for Services
Experimental and Quasi-experimental Evidence from Developing Countries

by Stewart Kettle

  • Publisher : Unknown Publisher
  • Release : 2016
  • Pages : 156
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The Use of Analysis of Covariance in Quasi-experimental Research

The Use of Analysis of Covariance in Quasi-experimental Research
A Book

by Alan C. Bugbee

  • Publisher : Unknown Publisher
  • Release : 1983
  • Pages : 318
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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