Assessing Interrater Agreement via the Average Deviation Index Given a Variety of Theoretical and Methodological Problems

Currently, guidelines do not exist for applying interrater agreement indices to the vast majority of methodological and theoretical problems that organizational and applied psychology researchers encounter. For a variety of methodological problems, we present critical values for interpreting the practical significance of observed average deviation (AD) values relative to either single items or scales. For a variety of theoretical problems, we present null ranges for AD values, relative to either single items or scales, to be used for determining whether an observed distribution of responses within a group is consistent with a theoretically specified distribution of responses. Our discussion focuses on important ways to extend the usage of interrater agreement indices beyond problems relating to the aggregation of individual level data.