Secondary science students were tested, using Piagetian tasks to determine their level of intellectual development, and then tested on scientific concepts classified as concrete or formal. Results showed significant multiple correlations between the scores on the tasks and the subject matter tests. (MLH)

This investigation explored the relationship between scholastic grades in science in junior and senior high school students and ability of students to perform formal operational tasks. The findings indicated that at certain grade levels and in certain subject areas, public school science students who demonstrate formal operational logic tend to…