Scorer reliability on the AAMD adaptive behavior scale,public school version,part one

Two groups of scorers were used to investigate the effects of in-service training in scoring and the reliability of scorers with the AAMD Adaptive Behavior Scale, Public School Version, Part One. A mean scorer reliability of .55 was found. There was a significant difference between the coefficients of agreement computed for the two groups. This established the efficacy of in-service training in scoring. Additionally, most frequent scoring errors were delineated.