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Table 3 Inter-rater reliability of the alpha angles between the two observers

From: Biomechanical and functional indicators in male semiprofessional soccer players with increased hip alpha angles vs. amateur soccer players

Variables Inter-rater reliability 95%-confidence interval
Oberserver 1 vs. observer 2   Minimum level Maximum level
Alpha angle, semiprofessional group 0.966 0.87 0.99
Alpha angle, amateur group 0.967 0.899 0.989