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🔬 Nested Gage R&R
Destructive / non-repeatable tests · Variance Components method
Nested Gage R&R applies when parts cannot be measured repeatedly by multiple appraisers (e.g. destructive testing, one-time measurements); parts are nested under appraisers. Unlike crossed R&R, each appraiser measures different parts.
Study Design
Input data (order: appraiser → part → replicate, one value per line)
Gage R&R Verdict
%GRR
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%EV (Repeatability)
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%AV (Reproducibility)
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NDC
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Variance Components
| Source | Variance Component | %Contribution | Std Dev (σ) | 6σ Range | %Study Var | %Tolerance |
|---|
Variance Component Breakdown
ANOVA Table
| Source | df | SS | MS | F | p-value |
|---|
About Nested Gage R&R
Gage R&R for destructive measurements: nested-design variance components for repeatability and reproducibility, with %GRR and ndc acceptance criteria.
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Gage R&R (Crossed)
Type 1 Gage Study
Gage Stability Study
Kappa Attribute Agreement
Sampling Plan (AQL)
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