The relationship between the Bender-Gesalt Test was studied using the Koppitz Developmental Scoring System and the Marianne Frostig Developmental Test of Visual Perception in terms of age, sex, IQ, and socioeconomic status. A relationship to the Harrison Reading Readiness Test was also explored. Subjects were 89 first- and second-grade children (46 males and 43 females) grouped according to socioeconomic class--upper middle, lower middle, or lower. A relationship between low and average intelligence and test performance was noted. Lower socioeconomic classes gave a consistently poor performance in all test areas. It was concluded that the two tests were measuring, to some degree, the same behavior, and, because of their low reliability, it is suggested that they be used together to test perceptual development. Both perception tests were related to the reading readiness test. Specific test variations are noted; further research is recommended. Detailed data tables are included, and references are listed. (BS)