Unreliability of half-list discrimination tests.

The present study was undertaken to investigate the reliability of the half-list forms of the CID W-22 and the NU no. 6 auditory discrimination tests with both normally hearing and sensorineurally impaired subjects. For each group of subjects, both the first half-lists and the whole-lists were scored. Analysis of the data indicated that the half-list forms of the tests were not as reliable as sometimes suggested in the literature. Further, the half-list form of the NU no. 6 was demonstrated to be not as reliable as the half-list form of the CID W-22 even before the correction coefficient was applied.