# Inter-Rater Agreement Calculator

In this competition, the judges agreed on 3 out of 5 points. The approval percentage is 3/5 – 60%. MedCalc calculates Kappa inter-rater agreement statistics according to Cohen, 1960; The calculation details are also shown in Altman, 1991 (p. 406-407). The standard error and 95% confidence interval are calculated according to Fleiss et al., 2003. Hello Deen, thanks for making this machine! I have the same question as Maria because my variable is rated, but has more than two options (nominal does not necessarily mean binary/dichotomous). Does ReCal2 work with rated variables that can have more than 2 options? With this tool, you can easily calculate the degree of agreement between two judges during the selection of studies to be included in a meta-analysis. Fill the fields to get the gross percentage of the chord and the value of Cohens Kappa. The Cohen-Kappa is a statistical coefficient that represents the degree of accuracy and reliability in a statistical classification. It measures the agreement between two councillors (judges) who, by their purpose, classify each of the categories that are mutually exclusive.

This statistic was introduced in 1960 by Jacob Cohen in the journal Educational and Psychological Measurement. where in is the relative correspondence observed among the advisors, and pe is the hypothetical probability of a random agreement. If the raw data is available in the calculation table, use the interrater agreement in the Statistics menu to establish the ranking table and calculate Kappa (Cohen 1960; Cohen 1968; Fleiss et al., 2003). The field in which you work determines the acceptable level of agreement. If it is a sporting competition, you can accept a 60% agreement to nominate a winner. However, if you look at the data from oncologists who choose to take a treatment, you need a much higher agreement – more than 90%. In general, more than 75% are considered acceptable in most areas. Reliability is an important part of any research study. Statistics Solutions` Kappa calculator evaluates interrater`s reliability of two advisors on a single goal. In this easy-to-use calculator, enter into the frequency of agreements and disagreements between advisors and the Kappa calculator will calculate your Kappa coefficient.

The calculator contains references that will help you qualitatively assess the level of compliance. (Click here, for example). A serious error in this type of reliability between boards is that the random agreement does not take into account and overestimates the level of agreement. This is the main reason why the percentage of consent should not be used for scientific work (i.e. doctoral theses or scientific publications). As you can probably tell, calculating percentage agreements for more than a handful of advisors can quickly become tedious. For example, if you had 6 judges, you would have 16 pairs of pairs to calculate for each participant (use our combination calculator to find out how many pairs you would get for multiple judges). If you already know what Cape Cohen means and how to interpret it, go straight to the computer. Kappa is always smaller or equal to 1. A value of 1 implies a perfect match and values below 1 mean less than a perfect match. Step 5: Look for the average value for political groups in the Accord column. Average – (3/3 – 0/3 – 3/3 – 1/3 – 1/3) / 5 – 0.53 or 53%.

Inter-Rater`s reliability for this example is 54%. The basic measure for Inter-Rater`s reliability is a percentage agreement between advisors.