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Working Papers on Research Methodology


Author
  Howard Bloom
Chief Social Scientist
 
     
    Empirical Benchmarks for Interpreting Effect Sizes in Research
Working Paper
    2007. Carolyn J. Hill, Howard S. Bloom, Alison Rebeck Black, and Mark W. Lipsey.

No universal guideline exists for judging the practical importance of a standardized effect size, a measure of the magnitude of an intervention's effects. This working paper argues that effect sizes should be interpreted using empirical benchmarks — and presents three types in the context of education research.
 
    The Core Analytics of Randomized Experiments for Social Research
Working Paper
    2006. Howard S. Bloom.

This MDRC research methodology working paper examines the core analytic elements of randomized experiments for social research. Its goal is to provide a compact discussion of the design and analysis of randomized experiments for measuring the impact of social or educational interventions.
 
    Using Covariates to Improve Precision
Empirical Guidance for Studies That Randomize Schools to Measure the Impacts of Educational Interventions
    2005. Howard S. Bloom, Lashawn Richburg-Hayes, and Alison Rebeck Black.

This paper examines how controlling statistically for baseline covariates (especially pretests) improves the precision of studies that randomize schools to measure the impacts of educational interventions on student achievement.
 
    Raising Hope with Jobs-Plus
Promoting Work in Seattle Public Housing During a HOPE VI Redevelopment
    2005. Nandita Verma, James A. Riccio, and Howard S. Bloom, with Johanna Walter.

Early success for this ambitious employment program for public housing residents in Seattle was disrupted by a federal HOPE VI grant to tear down and revitalize the housing development.
 
    The Challenge of Scaling Up Educational Reform
Findings and Lessons from First Things First
    2005. Janet Quint, Howard S. Bloom, Alison Rebeck Black, and LaFleur Stephens with Theresa M. Akey.

First Things First, a comprehensive school reform initiative, increased student achievement in Kansas City, Kansas, the first school district to adopt the reform model. It is not yet clear if First Things First is working in four other school districts in which it has been replicated.
 
    Promoting Work in Public Housing
The Effectiveness of Jobs-Plus
    2005. Howard S. Bloom, James A. Riccio, Nandita Verma with Johanna Walter.

Jobs-Plus, an ambitious employment program inside some of the nation’s poorest inner-city public housing developments, markedly increased the earnings of residents in the sites where it was implemented well.
 
    Sample Design for an Evaluation of the Reading First Program
    2003. Howard S. Bloom.

This paper illustrates how to design an experimental sample for measuring the effects of educational programs when whole schools are randomized to a program and control group. It addresses such issues as what number of schools should be randomized, how many students per school are needed, and what is the best mix of program and control schools.
 
    Exploring the Feasibility and Quality of Matched Neighborhood Research Designs
    2003. David C. Seith, Nandita Verma, Howard S. Bloom, George C. Galster.

 
    Using Place-Based Random Assignment and Comparative Interrupted Time-Series Analysis to Evaluate the Jobs-Plus Employment Program for Public Housing Residents
    2002. Howard S. Bloom, James A. Riccio.

 
    Can Nonexperimental Comparison Group Methods Match the Findings from a Random Assignment Evaluation of Mandatory Welfare-to-Work Programs?
    2002. Howard S. Bloom, Charles Michalopoulos, Carolyn J. Hill, Ying Lei.

 
    Evaluating the Accelerated Schools Approach
A Look at Early Implementation and Impacts on Student Achievement in Eight Elementary Schools
    2001. Howard S. Bloom, Sandra Ham, Laura Melton, Julieanne O'Brien.

 
    Measuring the Impacts of Whole-School Reforms
Methodological Lessons from an Evaluation of Accelerated Schools
    2001. Howard S. Bloom.

 
    Extending the Reach of Randomized Social Experiments
New Directions in Evaluations of American Welfare-to-Work and Employment Initiatives
    2001. James A Riccio, Howard S. Bloom.

 
    Modeling the Performance of Welfare-to-Work Programs
The Effects of Program Management and Services, Economic Environment, and Client Characteristics
    2001. Howard S. Bloom, Carolyn J. Hill, James Riccio.

 
    Building a Convincing Test of a Public Housing Employment Program Using Non-Experimental Methods
Planning for the Jobs-Plus Demonstration
    1999. Howard Bloom.

 
    Estimating Program Impacts on Student Achievement Using "Short" Interrupted Time Series
    1999. Howard S. Bloom.

 
    Using Cluster Random Assignment to Measure Program Impacts
Statistical Implications for the Evaluation of Education Programs
    1999. Howard S. Bloom, Johannes M. Bos, Suk-Won Lee.

 
    Testing a Re-Employment Incentive for Displaced Workers
The Earnings Supplement Project
    Social Research and Demonstration Corporation.
1999. Howard Bloom, Saul Schwartz, Susanna Lui-Gurr, Suk-Won Lee.

 
    Implementing the Earnings Supplement Project
A Test of a Reemployment Incentive
    Social Research and Demonstration Corporation.
1997. Howard Bloom, Barbara Fink, Susanna Lui-Gurr, Wendy Bancroft, Doug Tattrie.

 
    Does Training for the Disadvantaged Work?
Evidence from the National JTPA Study
    Urban Institute.
1996. Larry L. Orr, Howard S. Bloom, Stephen H. Bell, Fred Doolittle, Winston Lin.

 
 



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