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--Alan Van Heuvelen (The Ohio State University Department of Physics) The JJC faculty are striving to make learning meaningful by concentrating on teaching concepts rather than focusing on repetition of formulas and laws. This philosophy also shapes their summative assessmenta practices. Curt explained, for instance, how many flawed assessments test only the students' ability to regurgitate facts without challenging their true knowledge of the subject. His view, which is widely shared, is that having students who can rattle off Newton's Third Law without really understanding it does not constitute evidence of meaningful learning. Summative assessments should instead say something about a student's deeper understanding of these basic laws of physics. Moreover, faculty who are trying out new learning activities intended to help students achieve meaningful understanding can use the results of these tests to gauge the success of their new approach. Accordingly, Curt uses a number of tests, some of which are used nationally, that are designed to assess conceptual learning in physics. Below he briefly describes the various exams he gives and the results of those tests.
Susan: Do you have any data from the various classes that show, in national comparisons, how well your students are learning? Something about the value-added? Curt: Yeah, my data show rather strong gains.... The problem, which [large] universities don't face, is that I have particularly small classes. So I have to add all those classes together to get a statistically significant picture. Because class size at JJC is small, it is difficult to obtain statistically significant information from these assessments on a semester basis. However, Professor Alan Van Heuvelen (The Ohio State University Department of Physics), a national expert in this area, informed us that,
Below we list the names and acronyms for the summative assessment tests that Curt uses and indicate how, and in which physics courses, he uses them. [Note that these tests are the same as those described in the section on formative assessment, where we presented formative assessment as a learning activity. In Resource D, we provide brief descriptions of these tests and information about how to obtain them. Clearly, Curt uses these tools for both formative and summative assessment purposes.]
Note that Thornton, Sokoloff, and Laws have developed Items 3, 6, 7, and 12. Much of the data obtained using these tests has been collected to help inform the development of the computer-based MBL lab materials that they have produced. Curt and Bill use these tests because they have adapted many of the Thornton, Sokoloff, and Laws lab materials for their courses. The Maryland Physics Expectations Survey (MPEX, Item 1) is not a test, but rather a survey that attempts to measure students' attitudes before and after taking a physics class. It asks students to assess the degree to which they agree with statements such as, "Physics is relevant to the real world." Published data for this instrument indicate that students tend to agree with this statement before a standard physics course (usually calculus-based) and tend to disagree with it after having completed the course. This outcome is not what most physics professors seek to achieve. MPEX outcomes for JJC physics students go against this trend. The Force Concept Inventory (FCI, Item 2), and the Force and Motion Conceptual Evaluation (FMCE, Item 3) tests measure related and somewhat overlapping conceptual areas. The FCI and FMCE deal with kinematics and Newtonian thinking. Questions are multiple-choice and are written in non-technical language, but answers are included among attractive distractors that specifically address common-sense misconceptions about physics. The FCI is widely used, and data on student performance on the FCI are available from scores of courses at various institutions across the nation. To enable consistent comparison of performance on the FCI of students from diverse institutions (from the most to the least selective), Richard Hake of Indiana University introduced an "average normalized gain" factor (Hake, 1998). As noted in the Introduction, Hake developed this factor, which has come to be known in the physics community as the "Hake factor," while researching the difference between traditional physics classes and what he calls "interactive engagement" classes in terms of students' pre-instruction and pot-instruction performance on the FCI. The significance of the Hake factor is that it adjusts for the fact that percentage improvement is normally easier for those who start with lower pre-test scores than for those who initially score quite high.
h = (average post-test score - average pre-test score) / (100 - average pre-test score) At JJC, the FCI results for students in Curt's Engineering Physics course (Physics 201) vary a great deal from semester to semester, in part due to the very small class size. However, averaged over six semesters (Fall 1997 - Spring 2000), their Hake factor is 0.47 for the FCI (Table 1, below), which is comparable to the average Hake gain nationally for interactive engagement courses. The Hake factor for the same students on the FMCE, to which Curt has added several questions dealing with momentum is 0.62.
(Number of students=68; SD=Standard Deviation)
Table 2 provides data on how Engineering Physics students performed on three post-tests:
(Number of students=68; SD=Standard Deviation)
Table 3 provides data on how Engineering Physics students performed on three pre/post-tests:
(N=Number of Students; SD=Standard Deviation)
Finally, data for JJC Engineering Physics students on two more tests are shown in Table 4:
These tests measure student learning in the area of circuits and focus on basic concepts and difficulties that students typically have.
(N=Number of students; SD=Standard Deviation)
Bill's students show gains for algebra/trig-based College Physics course that are comparable to these presented here for Curt's Engineering Physics students. These gains provide evidence that Curt and Bill are achieving their goals for student learning. (For evidence of positive gains in student attitudes, see The labs are incredible, absolutely incredible: Students Discuss Computer-Dependent Learning Activities. (For more in-depth discussions of the assessments tools used by Curt, see We have to know where students' problems are and not where we think they are: Curt Discusses Formative Assessment Activities and Once you do the task, you learn it: Students Discuss Formative Assessment Activities.
a. A formal examination or test, the results of which faculty use to demonstrate in a way that is definitive and visible to people outside the course the degree to which students have accomplished the course's learning goals.
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