Regardless of how many times people are told by the Educational Testing Service not to use the Scholastic Aptitude Test (SAT) as a gross measure of school productivity, the test continues to be used for that purpose. This article shows how misleading SAT scores and per-student-expenditure correlations are used to justify spending less money on…

Identifies misconceptions related to the fundamental characteristics of atoms and molecules held by twelfth-grade students. Data were obtained by administration of semistructured interviews to a stratified, random sample of 30 students. Fifty-two misconceptions were observed and reported. Some of the misconceptions identified parallel the…