Assesses the ability of tenth grade students (n=364) to acquire meanings of graphs that are frequently used in their biology textbooks. Indicates that the main source of failure to process information equally well from tables and graphs was not a lack of basic analytical skills but rather a lack of understanding of the relationship between…

Contends that student success in introductory science courses at the college and university level depends on formal operational reasoning ability, size of working memory, and the degree of field independence. Reports the study findings related to cognitive predictor variables based on the testing of Venezuelan science majors (N=95). (ML)