Third Pakistan Poverty Alleviation Fund Project Impact Evaluation

IMPACT 7. Sample and data EVALUATION □ A representative sample taking care of geographic spread, partner diversity, financial weight of interventions, and multitude of components and interventions is a challenge. □ Sample to be stratified to ensure adequate representation of each cateogry. □ Sample is expected to provide statistically valid results at the project level. □ Based on final stratificaton, 95% confidence level, and ±3% error margin, a representative sample of settlements and households to be selected. □ Based on simulation, an estimated 4,000 treatment (and 4,000 control) households will be required. 8

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