The AP Descriptive Chemistry Question: Student Errors

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Crippen, K. & Brooks, D. (2005). The AP Descriptive Chemistry Question: Student Errors. Journal of Computers in Mathematics and Science Teaching, 24(4), 357-366. Norfolk, VA: AACE.
Retrieved from http://www.editlib.org/p/6088.

Journal Information

Journal of Computers in Mathematics and Science Teaching
ISSN 0731-9258
Volume 24, Issue 4, October 6, 2005
Association for the Advancement of Computing in Education (AACE)  Norfolk, VA

More Information on JCMST

Authors

Kent Crippen, University of Nevada Las Vegas, USA; David Brooks, University of Nebraska - Lincoln, USA

Abstract

For over a decade, the authors have been involved in a design theory experiment providing software for high school students preparing for the descriptive question on the Advanced Placement (AP) Chemistry Exam. Since 1997, the software has been available as a Web site offering repeatable practice. This study describes a four-year dataset on incorrect responses trapped using the most recent interface. A descriptive analysis suggests that the most basic errors include: failing to write appropriate chemical formulas, recognizing reactive species in net ionic reactions, and recognizing weak electrolytes. The largest single group of reported errors, recognizing weak electrolytes, implies strategies for improved student performance on the AP exam. Further, the results of this study support the development of greatly enhanced feedback for future learners using the site.

Keywords

• Assessment
• Research Methods
• Sciences
• Cognition
• Distance Education
• Learning Management Systems
• Teaching Methods
• Internet

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