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Scratcher (IFAT) Forms for Conceptual Test …...Scratchers and Implementation Student Response Test...
Transcript of Scratcher (IFAT) Forms for Conceptual Test …...Scratchers and Implementation Student Response Test...
Scratchers and Implementation Student Response Test Scores
Scratcher (IFAT) Formsfor Conceptual Test
Questions inIntroductory Courses
July 29 2015Nicole Ackerman
Agnes Scott College
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Scratchers and Implementation Student Response Test Scores
USING IF-AT FORMS
1st Choice
2nd Choice
3rd Choice
Wrong
Identification
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Scratchers and Implementation Student Response Test Scores
USING IF-AT FORMS
1st Choice
2nd Choice
3rd Choice
Wrong
Identification
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Scratchers and Implementation Student Response Test Scores
USING IF-AT FORMS
1st Choice
2nd Choice
3rd Choice
Wrong
Identification
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Scratchers and Implementation Student Response Test Scores
USING IF-AT FORMS
1st Choice
2nd Choice
3rd Choice
Wrong
Identification
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Scratchers and Implementation Student Response Test Scores
USING IF-AT FORMS
1st Choice
2nd Choice
3rd Choice
Wrong
Identification
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Scratchers and Implementation Student Response Test Scores
USING IF-AT FORMS
1st Choice
2nd Choice
3rd Choice
Wrong
Identification
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Scratchers and Implementation Student Response Test Scores
IMPLEMENTATION
Conceptual“Clicker”
Questions
Lecture
Own pace,in Groups
In-Class Review
8 MCQuestions
(50%)
In-Class Tests(x4, 50 min)
18 MCQuestions
(50%)
Final Exam(3 hr)
MC = Conceptual Multiple Choice
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Scratchers and Implementation Student Response Test Scores
EXAMPLE QUESTION
For the image shown to the right ofa conducting bar moving in a mag-netic field, which of the images be-low correctly represent the inducedcharge distribution?
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STUDENT FEEDBACKHOW DOES THE USE OF SCRATCHERS IMPACT TEST ANXIETY?
Positive
Anxiety0
20
40
60
80
100
%o
fRes
po
nse
s 20132014
“I like the scratchers a lot. I think itwas very helpful because itprevented me from second guessingmy answers, and I was able to moveon ‘for good’ after using thescratcher.”
“The scratchers added a little bit ofstress, but the benefit of them isworth it. It was good to haveimmediate feedback, and I like thatthere is an opportunity for partialcredit on multiple choice questions.”
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CORRELATION WITH “KNOWLEDGE”DO SCRATCHERS PROVIDE BETTER ASSESSMENT OF PHYSICS KNOWLEDGE?
0.2 0.4 0.6 0.80
0.2
0.4
0.6
0.8
1
CSEM or FCI Post Score
Co
rrec
t2n
dA
nsw
ers
(%o
fPo
ssib
le)
E&M 2014Mech 2014E&M 2015RegressionR2 = 0.248Guessing
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