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“Control for as many variables as possible” is bad advice. Some variables must be controlled, others must never be. This guide uses causal diagrams to separate
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Projects often fail at the step where an abstract concept becomes a number. This guide walks through four layers, definition, dimensions, indicators and recordi
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Longitudinal studies lose people faster than planned: 70 per cent at wave two, half by wave three. Here is how to space waves, keep contact, link identifiers an
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A focus group is not eight interviews run at once to save time. This guide covers when to use one, how to compose groups, how to moderate so everyone speaks, an
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Many theses call a single-company survey a “case study”. Here is how to define the case, set its boundaries, triangulate evidence and generalise to theory rathe
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A pilot study tells you whether the main study can run: recruitment, retention, measures, pipelines. How to set progression criteria, size a pilot, use cognitiv
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A survey chapter on one side, an interview chapter on the other, and a discussion that never joins them. That is the most common flaw in mixed methods. How to c
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Many proposals pick “quantitative” first and write the question afterwards. Reverse it: read the verb in your research question and let it decide the design, th
