Understanding reaction mechanisms is integral to success in organic chemistry; however, prior research suggests that learners struggle with recognizing the importance of underlying implicit features in reaction mechanisms. Because of this struggle, understanding how learners' reason about reaction mechanisms and developing assessments to elicit…

Many of the instruments developed for research use by the chemistry education community are relatively new. Because psychometric evidence dictates the validity of interpretations made from test scores, gathering and reporting validity and reliability evidence is of utmost importance. Therefore, the purpose of this study was to investigate what…

Dimensional analysis is traditionally one of the first topics covered in a general chemistry course. Chemists use dimensional analysis as a tool to keep track of units and guide them through calculations. Although unit conversions are taught in a variety of subjects over several grade levels, many students have not mastered this topic by the time…

Studied the effectiveness of using voluntary or mandatory quiz sections and specific quiz section leaders in teaching of large chemistry courses. Concluded that both exam and quiz should be retained in the course, but the value of mandatory quiz section attendance is doubtful. (CC)

Discusses some uses of questionnaires and surveys in educational research. Describes different kinds of closed and open form questions, offers suggestions for finding questionnaires for use, and describes methods of data analysis. Includes practical suggestions for using questionnaires in the chemistry classroom. (PVD)

Reports an investigation to determine whether or not interaction analysis could be used as a tool to analyze laboratory instruction and to identify patterns of instruction which differentiate effective and ineffective teaching. Indicates student performance can be enhanced by a student-centered climate. (Author/TS)