How to check linear regression in a lab report
Reconstruct the actual fit and keep variable definitions, scaling, units, residual behavior, and claim boundaries together.
Reconstruct the fitted observations
Confirm the x,y pairs, exclusions, transformations, and weights. A copied equation without the data selection is not reproducible.
Check coefficients and units
Slope carries y-unit per x-unit and intercept carries the y-unit. Axis scaling and SI prefixes must match the equation quoted in prose.
Interpret R² carefully
R² describes variance accounted for by the fitted model in the observed data. It does not prove causality, absence of bias, or suitability beyond the measured range.
Inspect assumptions before claims
Review residuals, independence, uncertainty, linear range, and experimental design before using the fit to support a conclusion.
Sources and boundaries
Solice develops LabCrux. The independent sources above do not sponsor or endorse the product. This page explains a review method; your experimental evidence, course instructions, and instructor remain authoritative.