NUMERIC EVIDENCE
Quantitative analysis
Quantitative analysis uses numeric measurements to describe patterns, compare groups or estimate relationships. A useful result starts with a clear question and a sensible account of how the numbers were collected.
Describe first, then infer
Begin with counts, distributions, ranges and plots. These describe the observed data and help catch problems. Inferential methods add uncertainty when estimating beyond the sample, but their assumptions and sampling design still matter. Avoid reporting a single statistic without its units, context and uncertainty.
WORKED EXAMPLES
Quantitative analysis guides
Each guide shows what the calculation means in context.
New worked examples will appear here as they are published.