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The Value of Random Assignment Impact Evaluations for Youth-Serving Interventions? Notes from Career Academy Research and Practice James Kemple Senior Fellow, MDRC www.mdrc.org
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2 What Can Career Academy Research and Practice Offer Evidence-Based Policy? Practice 34-year track record of implementation, planned expansion, and efforts at continuous improvement Intervention with goals and core features aligned with important problems in high schools and prominent policy options Research 25 years of non-experimental research and a commitment to learning what works 10-year random assignment field experiment involving 9 sites, over 1,700 students, and 8-years of follow-up Positive effects on labor market outcomes without compromising on academic goals
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3 Context for Impact Evaluations Learning “what works” is a long-term and cumulative process Questions drive methodology, not the reverse Multiple questions require multiple methods Must balance research ambition against operational and political realities Knowledge-building should be an integral part of policy development and continuous improvement, not an add-on or after-thought
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4 Why Conduct Impact Evaluations? Outcomes vs. Impacts Outcome: Measure of individual or group behavior, attitudes, achievement, labor market participation, an so on. Impact: The effect on an intervention on an outcome: the difference between outcome for program group and outcome for counterfactual. Outcome-focused studies risk getting the wrong answer to the right question Outcome standards risk awarding programs: based on who they serve, rather than what they do that operate under promising conditions, rather than use promising practices
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5 Judging Program Impacts: High Outcomes/No Impact Note: National average estimates are adjusted to represent a sample with the same background characteristics as those in the Evaluation Sample. 80.4 Evaluation Sample National Averages for Similar Students in Similar Schools 0 10 20 30 40 50 60 70 80 90 100 Academy Career/Tech. Non-AcademyGeneralAcademic 63.3 48.6 72.9 72.2 8.6 Percent Graduating On-Time
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6 Judging Program Impacts: Adding value vs. starting with strong context
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7 Career Academy Impacts on Average Earnings Impacts
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8 Guiding Principles for Impact Evaluations Random assignment may be the “gold standard” but it is not the “Philosopher’s Stone” (i.e., won’t extend life or answer every important question.) Questions drive methodology, not the reverse Because evaluations involve multiple questions they require multiple methods Implementing methodologies requires balancing research ambition against operational realities Strong research designs cannot compensate for weak treatments
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9 Conditions for Random Assignment Priority Question: What is the impact? Ethical and legal standards No denial of services to which otherwise entitled No reduction in expected service levels Informed consent and data confidentiality Operational Realities Collaboration between researchers and program managers Structured process for program entry or access to resources Excess demand: more eligible applicants than available program slots or resources Fair method for allocating scarce resources Opportunity for a “fair test” of the intervention
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10 Conditions for a “Fair Test” Strong contrast with “status quo” Implementation of program being tested Participant exposure to program services Well-understood alternative to program service High quality methods for answering questions about why programs are effective (or not) and for whom Dissemination of findings about what works and what does not work
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11 Implications of Career Academies Evaluation Random assignment provided findings that could not have been obtained with other designs. Increased investments in career-related experiences during high school can improve post-secondary labor market prospects. Career Academies serve as viable pathway to post- secondary education, but not necessarily better than other opportunities. Career Academies demonstrate feasibility of accomplishing goals of school-to-career and career technical education without compromising on academic goals.
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