Determined is the logical reasoning necessary to construct line graphs including a straight line with a positive or negative slope and an exponentially increasing curve. The responses of subjects (grades 6-12) were classified into one of nine categories fitting with Piagetian operational structures. (Author/YP)

Describes a paper-and-pencil test for high school biology students measuring science process skills, such as developing hypotheses; making predictions; identifying assumptions; analyzing data; and formulating conclusions. Reports some data on reliability and validity of the test. Provides all 35 items of the test. (YP)

Discusses instruments for measuring interest in biology: "Interest in Science Topics"; "Learning Mode Preference"; "Interest in Scientific Activities"; "Activities Motives Inventory"; "Interest in Social Aspects of Science"; "Career Orientation Inventory"; and "Attitude toward Biology Study." Concludes that interest in biology may be…

Outlines a procedure used to develop a written diagnostic instrument to identify misconceptions and misunderstandings of the chemistry topic. Reports the characteristic data for the instrument, and student understanding of covalent bonding and structure. (Author/YP)