Reliability of the five-item revised token test for individuals with aphasia

Two trained raters and 11 aphasic subjects were used to evaluate test-retes t, interrater and intra-rater reliabilities of the Five-Item (55 total) Rev ised Token Test (Arvedson et al. 1985). Results revealed high reliability f or overall mean scores, and moderate to high reliability for individual sub tests and linguistic elements scores. Standard error of measurement (SEM) v alues were also determined based on the aphasic subjects' data. A discrepan cy between large SEM values and the mean absolute difference value suggests that further evaluation of SEM is required with a larger sample size. Resu lts suggest that the Five-Item Revised Token Test is a reliable instrument to assess auditory processing impairments in adults with aphasia. Given the time constraints experienced in clinical and research settings, this asses sment tool is useful due to its validity, reliability, and brevity.