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Alternate Method Can Validate Measurement Systems

Summary: The ability to draw correct conclusions from scientific observations depends upon validation of the measurement system used to observe phenomena. One validation method uses interclass correlation that may be calculated by dividing the amount of process variation by the amount of measurement variation in a set of measurements. Any software may be used that can perform calculations using matrix algebra or principal component analysis (PCA). Calculating interclass correlation using PCA provides a simple method of estimating product and measurement variation and establishing the validity of the measurement system.

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  • Topics:
  • Keywords: Correlation,Measurement,Measurement system,Principal components,Scientific methods,Validation
  • Author: Villegas Garcia, Antonio
  • Journal: Six Sigma Forum Magazine