A homophone is a word having the same pronunciation as another English word, but a different spelling. A list of 7,300 English homophones was compiled and used to construct two tests. Scores were obtained in these and on reference tests for J. P. Guilford's factors CMU, CSU, DMU, and DSU for 70 native speakers of midwestern American English from a university population. The homophone tests showed Hoyt reliabilities of .95 and .87 for these subjects. Following Harris's procedure for determining Comparable Common Factors, the 15 x 15 matrix of intercorrelations was subjected to three factoring procedures, each yielding oblique and orthogonal solutions. Results were in close agreement for all analyses, yielding three common factors. Two corresponded to CMU and to DMU. The CSU and DSU tests loaded on the third factor, which had its largest loadings on the homophone tests, and involved comparing verbal stimuli with formal elements of internally generated lists. These findings replicate Harris's failure to extract distinct CSU and DSU factors and suggest that homophone recognition tasks can provide short but reliable reference tests for the symbolic factor into which CSU and DSU coalesce. (Author)