ERIC Number: EJ984468
Record Type: Journal
Publication Date: 2012
Abstractor: As Provided
Reference Count: 19
Development and Validation of the Implicit Information from Lewis Structures Instrument(IILSI): Do Students Connect Structures with Properties?
Cooper, Melanie M.; Underwood, Sonia M.; Hilley, Caleb Z.
Chemistry Education Research and Practice, v13 n3 p195-200 2012
Lewis structures are a simplified two dimensional "cartoon" of molecular structure that allow a knowledgeable user to predict the types of properties a particular substance may exhibit. However, prior research shows that many students fail to recognize these structure-property connections and are unable to decode the information contained in the structures, thus resulting in students' inability to use Lewis structures for their intended purposes. We have developed a survey instrument using responses from student interviews and open-ended questions from a previous research study to determine students' beliefs about the information that can be obtained from Lewis structures. The survey was found to be reliable and valid through multiple administrations to a total of 3203 students, including first- and second-semester general chemistry and organic chemistry students, junior/senior level undergraduate chemistry students, and graduate level chemistry students. We propose that this survey can be a useful informational tool for instructors for a wide range of courses where students' understanding of structure-function relationships is important. (Contains 4 figures and 2 tables.)
Descriptors: Test Construction, Test Validity, Test Reliability, Student Surveys, Student Attitudes, Chemistry, Molecular Structure, Undergraduate Students, Graduate Students
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A