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Methodological Briefs cover the range of options and elements available in conducting sound research and delivering reliable results. They cover impact evaluation, strategies and causal attributions and different data collection and analysis methods.

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Overview: Strategies for Causal Attribution: Methodological Briefs - Impact Evaluation No. 6

Causal attribution investigates the causal links between an intervention and observed changes and is an essential element of impact evaluation.
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Quasi-experimental research designs test causal hypotheses but by definition lack random assignment. They estimate impacts by comparing the results of an intervention group to a statistically constructed comparison group.

CO-AUTHOR(S)

Howard White; Shagun Sabarwal
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A randomized controlled trial (RCT) is an experimental form of impact evaluation, which randomly selects and assigns from the eligible population into intervention and control groups, to compare their results after set periods of time.

CO-AUTHOR(S)

Howard White; Shagun Sabarwal; Thomas de Hoop
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A theory of change can be developed for any level of intervention and explains how activities are understood to produce a series of results that contribute the intended impacts.

AUTHOR(S)

Patricia Rogers
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