High-Stakes Quantitative Analysis
Callum Taylor Callum Taylor

High-Stakes Quantitative Analysis

Complex, high-stakes data, a politically engaged audience, and multiple rounds of refinement to get it right. Here's how the analysis held up to scrutiny and helped shape global policy discussions.

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Data Quality Assessments
Callum Taylor Callum Taylor

Data Quality Assessments

Two rounds of assessment, two years apart, on a major international family planning programme's monitoring systems. Not just a diagnosis: standardised templates, a formal cleaning process, and measurable improvement the client could point to at endline.

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Adaptive Sampling Design
Callum Taylor Callum Taylor

Adaptive Sampling Design

Two years of on-the-ground change had shifted the original sampling frame beyond recognition. Here's how a hybrid design kept the endline evaluation's before/after comparisons valid.

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End-to-End Survey Delivery, From Design to Data
Callum Taylor Callum Taylor

End-to-End Survey Delivery, From Design to Data

From large-scale CAPI fieldwork across East Africa to a bespoke online survey of MPs and senior governance figures, survey delivery that adapts to the tool, the audience, and the context, without losing rigour.

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