Use of a relational focus strategy in oddity performance of EMR adolescents

A series of 5-item oddity tasks was administered to 44 EMR adolescents to determine whether a consistent strategy was used to achieve problem solutions. Such a strategy requires establishing a relational hypothesis for two items in a set and retaining that hypothesis in memory while testing subsequent items against it. Evidence for use of a consistent strategy would be found in a particular pattern of response latencies and errors dependent upon the position of the odd stimulus in each 5-item set. Analysis of variance of the mean latency scores and errors for the five positions in which the odd item occurred suggested that a consistent strategy was being applied.