20131212

FCI post-test comparison: Cuesta College versus UC-Davis (fall semester 2013)

Students at both Cuesta College (San Luis Obispo, CA) and the University of California at Davis were administered the 30-question Force Concept Inventory (David Hestenes, et al.) during the last week of instruction.

Cuesta College
Physics 205A
Fall semester 2013    
UC-Davis
Physics 7B
Summer session II 2002
N54 students*76 students*
low  3  3
mean    12.3 ± 6.512.9 ± 5.5
high2926

*Excludes students with negative informed consent forms (*.pdf)

Student's t-test of the null hypothesis results in p = 0.58 (t = 0.559, sdev = 5.91, degrees of freedom = 128), thus there is no significant difference between Cuesta College and UC-Davis FCI post-test scores.

The pre- to post-test gain for this semester at Cuesta College is:

Physics 205A fall semester 2013 sections 70854, 70855, 73320
<initial%>= 31% ± 18% (N = 76)
<final%>= 41% ± 22% (N = 54)
<g>= 0.17 ± 0.25 (matched-pairs); 0.15 (class-wise)

This Hake gain is slightly lower than previous semesters' results for algebra-based introductory physics at Cuesta College (0.25-0.33), but comparable to previous gains for algebra-based introductory physics at UC-Davis (0.16), and for calculus-based introductory physics at Cuesta College (0.14-0.16), as discussed in previous postings on this blog.

Notable about this Physics 205A class at Cuesta College during this fall 2013 semester is the requirement that students read and answer questions on the textbook and lecture slides before coming to lecture (in a "flipped classroom"), instructor discussion in-class based on answering student questions and concerns submitted online previous to lecture, in-class problem-solving sessions, and the continuing use (since fall semester 2011) of flashcards rather than electronic response system "clickers" (Classroom Performance System, einstruction.com), to engage in "think-pair-share" (peer-instruction).

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:

1 comment:

  1. Student's t-Test: Results

    The results of an unpaired t-test performed at 20:17 on 12-DEC-2013
    t=-0.559
    sdev= 5.91
    degrees of freedom =128 The probability of this result, assuming the null hypothesis, is 0.58

    Group A: Number of items= 54
    3.00 4.00 5.00 5.00 6.00 6.00 6.00 6.00 7.00 7.00 7.00 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 11.0 11.0 11.0 11.0 12.0 14.0 14.0 14.0 14.0 15.0 15.0 16.0 16.0 16.0 18.0 19.0 20.0 20.0 21.0 21.0 24.0 24.0 28.0 29.0 29.0
    Mean = 12.3
    95% confidence interval for Mean: 10.74 thru 13.93
    Standard Deviation = 6.47
    Hi = 29.0 Low = 3.00
    Median = 10.0
    Average Absolute Deviation from Median = 4.81

    Group B: Number of items= 76
    3.00 4.00 5.00 5.00 5.00 6.00 6.00 6.00 6.00 6.00 7.00 7.00 7.00 7.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 9.00 9.00 10.0 10.0 10.0 10.0 10.0 11.0 11.0 11.0 11.0 11.0 11.0 12.0 12.0 12.0 12.0 12.0 13.0 13.0 13.0 13.0 13.0 14.0 14.0 14.0 14.0 15.0 15.0 15.0 16.0 16.0 16.0 17.0 17.0 17.0 18.0 18.0 18.0 18.0 18.0 19.0 19.0 19.0 19.0 20.0 21.0 21.0 21.0 21.0 22.0 23.0 23.0 23.0 26.0
    Mean = 12.9
    95% confidence interval for Mean: 11.58 thru 14.26
    Standard Deviation = 5.49
    Hi = 26.0 Low = 3.00
    Median = 12.0
    Average Absolute Deviation from Median = 4.55

    Data Reference: 7D03

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