The Mixing of Methods: a three-step process for improving rigour in impact evaluations

G. Ton

    Research output: Contribution to journalArticleAcademicpeer-review

    28 Citations (Scopus)

    Abstract

    This article describes a systematic process that is helpful in improving impact evaluation assignments, within restricted budgets and timelines. It involves three steps: a rethink of the key questions of the evaluation to develop more relevant, specific questions; a way of designing a mix of research methods to generate evidence that supports more valid conclusions; and a step that aims to make evaluation outputs more useful. The approach is illustrated through two examples: one on measuring income impacts in an irrigated horticulture programme in Nepal, Zambia and Ethiopia; and another on the assessment of changes in organizational capacities for collective marketing by smallholders in Bolivia. The article demonstrates that this simple, straightforward and structured three-step process helped to reduce the tendency to one-method designs. Enhanced critical reflection within the team allowed for greater sensitivity to validity threats and the creativity to find ways to handle them.
    Original languageEnglish
    Pages (from-to)5-25
    JournalEvaluation : The International Journal of Theory, Research and Practice
    Volume18
    Issue number1
    DOIs
    Publication statusPublished - 2012

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