## 20110725

### Education research: post-instruction feedback on laboratory (Cuesta College, Physics 205B, spring semester 2011)

Cuesta College students taking Physics 205B (college physics, algebra-based) at Cuesta College, San Luis Obispo, CA take a mandatory adjunct laboratory. Instead of a conventional set of step-by-step equipment set-up instructions, students are given a specific task to set up, complete and document. For example:
1. Construct a circuit consisting of a single 9-V battery, and as many Xmas light bulbs (and connectors) as necessary such that there are bulbs with at least three different brightness levels.
2. Make the appropriate measurements to determine the current and voltage drop of each different brightness bulb when on, in order to calculate the resistance and power dissipated for each unique brightness light bulb (with significant figures).
3. Discuss how your measurements/calculations demonstrate that there are light bulbs with three different power levels.
(Note that the above task follows an earlier lab where students were not told how to use multimeters, but instructed to tinker and determine their proper handling and use in simple measurements.)

During the last week of instruction, students were given the opportunity to evaluate the laboratory components of the course in an online "Physics Laboratory Learning Survey" hosted by SurveyMonkey.com.

These are the complete survey results. Analysis will be forthcoming after more data has been compiled from future semesters. Values for the mean and standard deviations are given next to the modal response category for each question. Note that the order of questions within certain sections were randomly scrambled for each student.
`Physics Laboratory Learning SurveyCuesta CollegePhysics 205B spring semester 2011 section 30882(N = 8)I. In order to receive credit for completing this survey,   first enter your first and last name below:   ____II.1 Which of the following best characterizes your      preparation/involvement for lab?  Mark all that apply.        Read the directions/review concepts... 1. while doing the lab.                  7 : *******2. immediately before starting the lab.  6 : ******3. the night before the lab.             2 : **4. a day (or more) before the lab.       1 : *   II.2 How often did a lab build upon a previous lecture experience?1. Never                  0 : 2. Not much               0 : 3. Sometimes              1 : *4. Often                  5 : *****  [4.1 +/- 0.6]5. Always                 2 : **II.3 How often did a lab build upon a previous lab experience?1. Never                  0 : 2. Not much               0 : 3. Sometimes              6 : ******  [3.3 +/- 0.4]4. Often                  2 : **5. Always                 0 : III. Rate the level of your understanding/comprehension for a typical lab.III.1 Understanding of concepts before coming to lab.1. None                   0 : 2. Very little            3 : ***3. Some                   2 : **  [3.0 +/- 0.9]4. Much                   3 : ***5. Complete               0 : III.2 Understanding of concepts after pre-lab discussion, before starting work.  1. None                   0 : 2. Very little            0 : 3. Some                   4 : *****  [3.5 +/- 0.5]4. Much                   4 : *****5. Complete               0 : III.3 Understanding of concepts after completing in-lab work.1. None                   0 : 2. Very little            0 : 3. Some                   1 : *4. Much                   5 : *****  [4.1 +/- 0.6]5. Complete               2 : **III.4 Understanding of concepts after completing lab report.1. None                   0 : 2. Very little            0 : 3. Some                   0 : 4. Much                   6 : ******  [4.3 +/- 0.4]5. Complete               2 : **III.5 Comprehension of overall lab procedure/instructions.   1. None                   0 : 2. Very little            0 : 3. Some                   2 : **4. Much                   5 : *****  [3.9 +/- 0.6]5. Complete               1 : *III.6 Comprehension of overall lab purpose.  1. None                   0 : 2. Very little            0 : 3. Some                   1 : *4. Much                   5 : *****  [4.1 +/- 0.6]5. Complete               2 : **IV. Typically a lab would help me understand the concepts.1. Strongly disagree      0 : 2. Disagree               0 : 3. Neutral                0 : 4. Agree                  8 : ********  [4.0 +/- 0.0]5. Strongly agree         0 : V.1 How much time did you typically spend preparing/studying     before the start of lab (including work on pre-lab assignments)?1. 15 minutes or less     1 : ****2. 30 minutes             5 : ******3. 1 hour                 2 : *4. 2 hours                0 : 5. 3 hours or more        0 : V.2 How much time did you typically spend working on lab reports     (after completing in-lab work)?1. 15 minutes or less     0 : 2. 30 minutes             0 : **3. 1 hour                 1 : *****4. 2 hours                7 : ****5. 3 hours or more        0 : VI. (Optional.) Please type in any comments you may have regarding    the laboratory portion of this class.`
"It would be nice if the lab instructor went over the pre-labs to show correct or incorrect answer."
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