I administered the “pre-test” Force Concept Inventory (Halloun, Hake & Mosca, 1995) to my class a few days after school started on September 5, 2013. I scanned all the responses (N=16). Just a few days ago, May 19, 2014, I administered the “post-test”.
Madsen, McKagan and Sayre (2014) suggest an effect size to help report scores. I adopt their table here to present my own results
Raw Gain | 9.2-8.0 = 1.2 |
Normalized Gain | 0.05 |
Effect Size | 0.35 |
I clearly have a lot of work to do to improve my teaching effectiveness. If I twiddle the student scores, say improving them each by 10 points, then my normalized gain and my effect size would both increase by a factor of 10.
References
Halloun, I., Hake R. & Mosca, E. (1995). Force Concept Inventory [Revised]. © Modeling Instruction – American Modeling Teachers Association 2013. Retrieved May 20, 2014 from http://modeling.asu.edu/R&E/FCI-RV95%20withInstr.pdf
Madsen, A., McKagan, S.B. & Sayre, E.C. (2014). Best Practices for Administering Concept Inventories. Physics Education. Retrieved May 20, 2014 from http://arxiv.org/abs/1404.6500