Resumen
Las intervenciones para promover conductas conservadoras del agua han seguido 3 tipos de estrategias: feedback, normas sociales y campañas de sensibilización. Esta revisión pretende evaluar las características metodológicas y valorar la eficacia alcanzada por estas estrategias. De una búsqueda sistemática de literatura, obtuvimos 31 artículos. En cada estrategia, analizamos 6 variables metodológicas esenciales, y calculamos el tamaño del efecto promedio. Encontramos ausencia destacada de grupo control y de medidas pre-post. El tamaño del efecto fue medio en las intervenciones de feedback y bajo en intervenciones basadas en normas sociales y campañas de sensibilización. Las intervenciones de feedback presentan mejores condiciones metodológicas. No obstante, se impone la necesidad de cuidar aspectos metodológicos esenciales, y de informar de estadísticos que permitan una estimación más fiable de la eficacia. Pese a ello, la tendencia de las tres estrategias es positiva, donde las intervenciones basadas en feedback son las de mayor efecto.
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