AgreeStat/360: computing weighted agreement coefficients (Conger's kappa, Fleiss' kappa, Gwet's AC1/AC2, Krippendorff's alpha, and more) for 3 raters or more
Inter-rater agreement Kappas. a.k.a. inter-rater reliability or… | by Amir Ziai | Towards Data Science
Fleiss Kappa for Inter-Rater Reliability | James D. McCaffrey
Fleiss Kappa [Simply Explained] - YouTube
Fleiss' kappa in SPSS Statistics | Laerd Statistics