| Cuesta College Physics 205A Fall semester 2012 | UC-Davis Physics 7B Summer session II 2002 | |
| N | 70 students* | 76 students* |
| low | 0 | 2 |
| mean | 9.6 +/- 5.0 | 9.1 +/- 4.3 |
| high | 26 | 27 |
*Excludes students with negative informed consent forms (*.pdf)
Student's t-test of the null hypothesis results in p = 0.46 (t = 0.748, sdev = 4.63, degrees of freedom = 144), thus there is no significant difference between Cuesta College and UC-Davis FCI pre-test scores.
Later this semester (fall 2012), a comparison will be made between Cuesta College and UC-Davis FCI post-tests, along with their pre- to post-test gains.
D. Hestenes, M. Wells, and G. Swackhamer, Arizona State University, "Force Concept Inventory," Phys. Teach. 30, 141-158 (1992).
Development of the FCI, a 30-question survey of basic Newtonian mechanics concepts.
Previous FCI results:
- Cuesta College versus UC-Davis, fall semester 2011 pre-tests and post-tests.
- Cuesta College versus UC-Davis, fall semester 2009 pre-tests and post-tests.
- Cuesta College versus UC-Davis, spring semester 2009 pre-tests and post-tests.
- Cuesta College versus UC-Davis, fall semester 2008 pre-tests and post-tests.
- Cuesta College versus UC-Davis, spring semester 2008 pre-tests and post-tests.
- Cuesta College versus UC-Davis, fall semester 2007 pre-tests and post-tests.
1 comment:
Student's t-Test: Results
The results of an unpaired t-test performed at 14:38 on 24-AUG-2012
t= 0.748
sdev= 4.63
degrees of freedom =144 The probability of this result, assuming the null hypothesis, is 0.46
Group A: Number of items= 70
0.00 3.00 4.00 4.00 4.00 4.00 5.00 5.00 5.00 5.00 5.00 6.00 6.00 6.00 6.00 6.00 6.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 10.0 10.0 10.0 10.0 10.0 11.0 11.0 11.0 11.0 11.0 12.0 12.0 12.0 12.0 14.0 14.0 14.0 14.0 15.0 17.0 19.0 21.0 22.0 23.0 23.0 26.0
Mean = 9.60
95% confidence interval for Mean: 8.507 thru 10.69
Standard Deviation = 5.00
Hi = 26.0 Low = 0.00
Median = 8.50
Average Absolute Deviation from Median = 3.43
Group B: Number of items= 76
2.00 2.00 3.00 3.00 4.00 4.00 4.00 5.00 5.00 5.00 5.00 5.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00 10.0 10.0 10.0 10.0 10.0 10.0 11.0 11.0 11.0 11.0 11.0 11.0 12.0 12.0 13.0 14.0 14.0 14.0 14.0 15.0 15.0 15.0 15.0 16.0 18.0 21.0 27.0
Mean = 9.03
95% confidence interval for Mean: 7.977 thru 10.08
Standard Deviation = 4.26
Hi = 27.0 Low = 2.00
Median = 8.00
Average Absolute Deviation from Median = 3.03
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