A procedure is proposed for determining whether correlations obtained between two measures justify the assumption that the measures are identical. It is intended especially for small samples. In the example, the performance scales of two intelligence tests were administered to 32 deaf adolescents. (GDC)

Seven hierarchical clustering methods were applied to the Wechsler Adult Intelligence Scale-Revised (WAIS-R) scores of 121 medical rehabilitation clients to investigate the possibility of method-dependent results and determine the stability of the clusters. This multiple-methods cluster analysis suggests that the underlying constructs of the…