The rod and frame performance of 70 children, 5 to 7 years of age, with respect to sex and age differences, reliability, and its relationship to general intelligence, was investigated. The rod and frame test was administered individually and again following a period of 35 to 69 days, at which time the Lorge Thorndike Intelligence Test, form 1A, was also administered to groups of 4 to 5 children. Distributions, means and standard deviations of both rod and frame and intelligence data were computed. Results of the study showed the following: (1) There were significant differences found on the age factor; the difference between 5 and 6 and between 5 and 7 year olds was significant. The indication is that older subjects are more accurate than younger subjects; (2) There was a significant difference between the sexes with males performing more accurately than females; (3) The data indicate a good deal of internal consistency within the performance of subjects on both rod and frame tests. The data on the stability of performance was less impressive; and (4) It appears that there is a relationship between rod and frame performance and intelligence; however, the correlation is not of very great magnitude. (DB)