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Are sweet potatoes really sweet?

A presentation done  during the Executive Education Course Evaluation Social Programmes University of Cape Town 22 January 2016. It covers the evaluation questions: Does the training and providing of cuttings of sweet potatoes to lead to an increase in: a. Vitamin A intake in children under 5 in farming households; and …

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Scaling Up and Evaluation

This paper discusses the role that impact evaluations should play in scaling up. Credible impact evaluations are needed to ensure that the most effective programs are scaled up at the national or international levels. Scaling up is possible only if a case can be made that programs that have been …

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NONEXPERIMENTAL VERSUS EXPERIMENTAL ESTIMATES OF EARNINGS IMPACTS

ABSTRACT: Nonexperimental or “quasi-experimental” evaluation methods, in which researchers use treatment and comparison groups without randomly assigning subjects to the groups, are often proposed as substitutes for randomized trials. Yet, nonexperimental (NX) methods rely on untestable assumptions. To assess these methods in the context of welfare, job training, and employment …

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How to Randomize

This lecture covers the following topics:   Unit and method of randomization Why not simple lotteries?  Revisiting unit and method Variations on simple treatment-control

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Minimum Dietary Diversity for Women – A Guide to Measurement

The Minimum Dietary Diversity for WRA (MDD-W) indicator defined and described in this document is a food group diversity indicator that has been shown to reflect one key dimension of diet quality: micronutrient adequacy, summarised across 11 micronutrients (Martin-Prével et al., 2015). The indicator constitutes an important step towards filling the need for …

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Tudo o Que Sempre Quis Saber sobre a Batata-doce – Volume 7

Este manual contém “Tudo o que sempre quis saber sobre a batata-doce”. Esperamos que o manual seja útil para os que estão envolvidos na capacitação de extensionistas e pessoal de ONGs a diferentes níveis, e que estes por sua vez irão capacitar produtores duma maneira prática que os ajuda a construir as …

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Tudo o Que Sempre Quis Saber sobre a Batata-doce – Volume 6

Este manual contém “Tudo o que sempre quis saber sobre a batata-doce”. Esperamos que o manual seja útil para os que estão envolvidos na capacitação de extensionistas e pessoal de ONGs a diferentes níveis, e que estes por sua vez irão capacitar produtores duma maneira prática que os ajuda a construir as …

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Tudo o Que Sempre Quis Saber sobre a Batata-doce – Volume 5

Este manual contém “Tudo o que sempre quis saber sobre a batata-doce”. Esperamos que o manual seja útil para os que estão envolvidos na capacitação de extensionistas e pessoal de ONGs a diferentes níveis, e que estes por sua vez irão capacitar produtores duma maneira prática que os ajuda a construir as …

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In vitro conservation of sweetpotato – OP26

urIn vitro sweetpotato germplasm conservation utilizes tissue culture techniques reducing plantlets growth. This is done applying incubation at low temperate. The methods described below allow the medium-term conservation of about 5,500 sweetpotato genotypes, following subculture procedures approximately every one year . 

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