Correlation coefficient

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A number between -1 and 1 that indicates the degree of linear relationship between two sets of numbers, where 0 indicates no linear relationship.

Inter-rater agreement
The degree of agreement among raters. It gives a score of how much homogeneity, or consensus, there is in the ratings given by the appraisers. Also known as inter-rater reliability, or concordance. Options to measure inter-rater agreement include: joint-probability of agreement, Cohen's kappa and the related Fleiss' kappa, inter-rater correlation, concordance correlation coefficient and intra-class correlation.

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About Fred Schenkelberg

I am the reliability expert at FMS Reliability, a reliability engineering and management consulting firm I founded in 2004. I left Hewlett Packard (HP)’s Reliability Team, where I helped create a culture of reliability across the corporation, to assist other organizations.

About Fred Schenkelberg

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