Conservation ability, spatial motor ability, age, and gender were used as predictive variables in a study of 26 kindergarten children's computer programming ability. A preliminary pilot study with first graders had suggested that programming success was related to the ability to reverse thought processes. In both studies, children were taught to program with the LOGO Turtle using a simplified form of LOGO. The subjects were 12 girls and 14 boys from a kindergarten class of a private school emphasizing creativity. Scores from a school-administered conservation test and from the geometric design subtest of the Weschler Preschool and Primary Scale of Intelligence were used. Students were given a 30-minute computer literacy demonstration and two 20-minute sessions of unstructured exploration with the four LOGO commands for the procedures. Individual posttesting required the child to draw geometric shapes with the Turtle. Results indicated that conservation ability was a good predictor of programming skill although the four variables together did not account for a significant amount of variance in programming ability. A replication of the study with 16 kindergarten children in a French-immersion public school showed that none of the predictors was significant. Six references are listed. (LMM)