Evidence of Teaching Effectiveness
Contents
Student Evaluation of
Teaching
Evaluations for
individual courses:
Evaluations over the
Semesters
Measurement of Course
Outcomes
Course outcomes for
individual courses
Introduction top
Computers & Application Software
Estimation of Student
Perceptions of the Courses
Student perceptions of
individual courses
Biomedical Electronic
Instrumentation
In this document I will discuss
three different types of assessment to gauge my teaching and student learning:
1) student evaluation of courses, 2) assessment of course outcomes based on
exams, and 3) student surveys about the courses.
Student evaluations are now done
every semester for all the courses. Sometimes in the past they were once a year
after an instructor was tenured. I will look at my evaluations for all the
courses I have taught at the University of Akron since I joined the University.
Using the other two forms of
assessment mentioned above (course outcomes and student course surveys) I am
trying to create a system where I can identify and isolate areas which students
find difficult (or, may be, I make them so), I can then make modifications to
just these areas in teaching, and then assess after making adjustments. In this
process I will continuously improve my teaching and learning. I am still in the
process of validating the process and ensuring its reliability. Once validated,
I will be able to use it effectively.
Assessment of course outcomes
based on student performance in exams can be influenced by many factors
including, difficulty of the exam, student understanding of the material, and
my own delivery of the material. These factors have not been partialed out in
the analyses presented here. For this reason and because sometimes there was
not enough data to draw any conclusions (too few students in a course or too
few data points) all the results here are preliminary. The outcomes on which
students have generally scored low are those which the students have found
difficult or for which my delivery needs improvement.
In the student surveys I try to
assess student satisfaction with the course and their perception of learning in
the course. Here I can see that although students might feel that they find a
topic to be difficult, they still feel that they have gained something out of
the course in that particular topic or outcome. Their achievement may not be
what I expected, yet the students may feel that they have learned.
In the next step, which has not
yet been implemented I will try to correlate the above three types of
measurements.
In this section the student
evaluations which are done every semester are discussed. These will be
presented individually for the courses I have taught most often, for semesters,
and averages for academic years.
These measurements are from the
official instrument(s) that are being (or have been) used by the College.
Although there has been a debate about their validity yet they do estimate some
relevant aspects of the courses. While one or a few of these evaluations may
not provide accurate results, their consistency over time does point to their
temporal reliability.
The following table summarizes
the values for all the courses I have taught at the University of Akron since I
joined the University.
Table 1 Mean
Student Ratings for the Courses I Have Taught
|
|
Department
and Course Number |
Course Name |
Number of Students[1] |
Overall Mean Rating for the Course |
|
1. |
2440 (CIS) |
|
1086 |
4.275 |
|
1.1. |
101 |
Fundamental Computer Concepts |
20 |
4.487 |
|
1.2. |
102 |
Introduction to Windows |
13 |
4.524 |
|
1.3. |
103 |
Software Fundamentals |
10 |
4.3 |
|
1.4. |
105 |
Introduction to Computers & Application Software |
82 |
4.462 |
|
1.5. |
121 |
Introduction to Logic/Programming |
65 |
4.179 |
|
1.6. |
140 |
Internet Tools |
115 |
4.316 |
|
1.7. |
145 |
Operating Systems |
112 |
4.140 |
|
1.8. |
170 |
Visual Basic |
215 |
4.334 |
|
1.9. |
240 |
CIS Internship |
6 |
3.779 |
|
1.10.
|
241 |
Systems Analysis & Design |
77 |
4.221 |
|
1.11.
|
247 |
Hardware Support |
24 |
3.998 |
|
1.12.
|
251 |
CIS Projects |
132 |
4.428 |
|
1.13.
|
256 |
C++ Programming |
139 |
4.177 |
|
1.14.
|
257 |
Microcomputer Projects |
67 |
4.092 |
|
1.15.
|
268 |
Network Concepts |
9 |
4.673 |
|
2. |
2860 (EET) |
|
52 |
4.263 |
|
2.1. |
237 |
Digital Fundamentals |
20 |
4.169 |
|
2.2. |
238 |
Microprocessor Applications |
8 |
4.208 |
|
2.3. |
406 |
Communication Systems |
10 |
4.388 |
|
2.4. |
420 |
Biomedical Electronic Instrumentation |
14 |
4.383 |
|
|
Overall Mean |
(for both Departments) |
1138 |
4.274 |
Variations of student evaluations
over the semesters for the courses I have taught most often are given below.
They are as follows:
1.
Figure 1 “Introduction to Computers &
Application Software (2440: 105)”,
2.
Figure 2 “Programming Logic (2440: 120)”,
3.
Figure 3 “Internet Tools (2440: 140)”,
4.
Figure 4 “Operating Systems (2440: 145)”,
5.
Figure 5 “Visual Basic (2440: 170)”,
6.
Figure 6 “Systems Analysis & Design
(2440: 241)”,
7.
Figure 7 “CIS Projects (2440: 251)”,
8.
Figure 8 “C++ Programming (2440: 256)”,
9.
Figure 9 “Microcomputer Projects (2440:
257)”,
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Mean values over all courses for
each semester from Fall 1999, when I joined the University, right up to Spring
2009 are shown below. Also superimposed on the graph are the trendline and the
95% confidence interval around the trendline. The trendline shows a gradual but
very clear increase in overall mean student evaluation for semesters.
Figure 10
Mean student evaluations for
calendar years are summarized here. Again a trendline and 95% confidence
intervals are superimposed on the graph. As stated for the previous Figure the
trendline is just like the one there and has the same the same characteristics.
The trendline in Figure 10 is more reliable because it has more data points.
Figure 11
I have measured achievement of
students on course outcomes in some of my courses. The results presented here
are direct measures of course outcomes. The different elements that are used to
assess students in all my courses include exams, laboratory assignments, and
attendance. All these elements of the courses were not analyzed. Only the
multiple choice exams were analyzed to see how well students achieve the
different course outcomes. Specifically the courses and the semesters when the
outcomes were measured together with the number of students who took all the
exams were:
Table 2
Courses for Which Exams Have Been Analyzed
|
Semester |
Course |
Number of Students in the Course |
|
Fall 2006 |
Logic
(Section 001) |
18 |
|
Fall 2006 |
Logic
(Section 801) |
14 |
|
Fall 2006 |
Internet
Tools |
24 |
|
Fall 2006 |
Systems
Analysis & Design |
14 |
|
Fall 2006 |
C++
(online) |
15 |
|
Spring 2007 |
Logic |
22 |
|
Spring 2007 |
Operating
Systems |
24 |
|
Spring 2007 |
Visual
Basic |
10 |
|
Fall 2007 |
Internet
Tools |
27 |
|
Fall 2007 |
Operating
Systems |
26 |
|
Fall 2007 |
Digital
Circuits |
12 |
|
Fall 2007 |
Systems
Analysis & Design |
9 |
|
Spring 2008 |
Visual
Basic |
7 |
|
Fall 2008 |
Digital
Circuits |
11 |
|
Fall 2008 |
Operating
Systems |
27 |
|
Fall 2008 |
Systems
Analysis & Design |
7 |
|
Fall 2008 |
C++ |
14 |
|
Spring 2009 |
Visual
Basic |
12 |
Mean student scores on an outcome
are being reported here for the courses together with the percentage of
students who scored at least 70% on the relevant outcome.
Results for some of the individual
courses that have been analyzed are presented now. One thing that is evident is
that as the courses become move general to specialized, the student
demographics changes and the level of understanding increases. I am arbitrarily
using a 70% achievement level in the following. Probably it should be different
in different courses.
The course outcomes for “Digital
Circuits” (2860: 237) are:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the basics of digital circuits (analog/digital
representation, number systems, Boolean algebra, Karnaugh maps, basic gates) |
|
2 |
I can
differentiate the different digital ICs and their characteristics |
|
3 |
I can
analyze, design, build, and troubleshoot a broad range of combinational
circuits using digital ICs |
|
4 |
I
understand and can explain flip-flops, one-shots, and timers |
|
5 |
I can
analyze, design, build, and troubleshoot a broad range of counters |
|
6 |
I
understand and can explain shift register basics, the various kinds, their
operating characteristics, and applications |
|
7 |
I can do
computer modeling of digital circuits |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow:
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||
|
Outcome # |
Fall 2007 |
Fall 2008 |
Fall 2007 |
Fall 2008 |
|
1 |
75% |
80% |
67% |
82% |
|
2 |
55% |
60% |
33% |
18% |
|
3 |
60% |
69% |
33% |
64% |
|
4 |
56% |
71% |
33% |
73% |
|
5 |
67% |
76% |
67% |
82% |
|
6 |
47% |
64% |
25% |
27% |
|
7 |
58% |
73% |
33% |
46% |
The course outcomes for “Introduction
to Computers & Application Software” (2440: 105) are:
|
Number |
Course Outcome |
|
1 |
Basic
Concepts of Windows |
|
2 |
Concepts
of E-mail programs |
|
3 |
Concepts
of the Internet and the Internet Explorer |
|
4 |
Basics of
computer hardware |
|
5 |
Concepts
of MS Word |
|
6 |
Concepts
of MS Excel |
|
7 |
Concepts
of MS Access |
|
8 |
Concepts
of MS PowerPoint |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow:
For the semester from Spring 2008
through Summer III 2008 I used to deliver content via lectures and then have
the students do exercises, in Spring 2009 I started using myITLab together with
the book which changed the method of content delivery. The exercises were still
assigned from the book and I was still not using skills testing in the myITLab.
I started using skills testing in myITLab in Summer 2009 and the results for
these have not been analyzed yet.
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||||||||
|
Outcome # |
Spr 2008 |
Sum I 2008 |
Sum III 2008 |
Spr 2009 |
Spr 2009 |
Spr 2008 |
Sum I 2008 |
Sum III 2008 |
Spr 2009 |
Spr 2009 |
|
1 |
71% |
63% |
93% |
81% |
85% |
65% |
67% |
100% |
100% |
88% |
|
2 |
71% |
49% |
71% |
69% |
73% |
65% |
44% |
56% |
63% |
54% |
|
3 |
65% |
53% |
77% |
79% |
87% |
62% |
56% |
78% |
100% |
96% |
|
4 |
59% |
48% |
72% |
62% |
68% |
39% |
22% |
33% |
31% |
33% |
|
5 |
47% |
29% |
58% |
50% |
54% |
23% |
22% |
33% |
0% |
4% |
|
6 |
39% |
34% |
44% |
57% |
60% |
12% |
33% |
33% |
42% |
42% |
|
7 |
40% |
33% |
29% |
41% |
43% |
15% |
22% |
11% |
10% |
4% |
|
8 |
43% |
30% |
48% |
45% |
45% |
19% |
22% |
33% |
5% |
17% |
The course outcomes for
“Programming Logic” (2440: 121) are:
|
Number |
Course Outcome |
|
1 |
I can
explain and use the basics of programming (data hierarchy, variables, data
types, flowcharts, pseudocode, etc.) |
|
2 |
I can
explain and use program structure in terms of the 3 basic programming
constructs |
|
3 |
I can
explain and use planning and can document programs |
|
4 |
I can
explain and use the Decision making structure |
|
5 |
I can
explain and use the Repetition structure |
|
6 |
I can
explain and use Arrays |
|
7 |
I can
explain and use modules in programs |
|
8 |
I can
explain and use Control Breaks in programs |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow:
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||||
|
Outcome # |
Fall 2006 (Sec 001) |
Fall 2006 (Sec 801) |
Spring 2007 |
Fall 2006 (Sec 001) |
Fall 2006 (Sec 801) |
Spring 2007 |
|
1 |
68% |
81% |
79% |
39% |
57% |
46% |
|
2 |
59% |
85% |
77% |
50% |
57% |
41% |
|
3 |
58% |
81% |
81% |
28% |
57% |
36% |
|
4 |
63% |
81% |
66% |
28% |
57% |
23% |
|
5 |
50% |
69% |
59% |
22% |
36% |
36% |
|
6 |
41% |
59% |
56% |
6% |
36% |
14% |
|
7 |
70% |
87% |
81% |
33% |
64% |
55% |
|
8 |
50% |
64% |
59% |
33% |
36% |
32% |
The course outcomes for “Internet
Tools” (2440: 140) are:
|
Number |
Course Outcome |
|
1 |
I can
explain and use the basics of HTML (The elements in HTML, creation of Web
pages and Web sites, links, etc.) |
|
2 |
I can
explain and use cascaded style sheets (CSS) |
|
3 |
I can
explain and use Web Tables |
|
4 |
I can
explain and use Web Forms |
|
5 |
I can use
frames in Web pages |
|
6 |
I can
explain and use multimedia in Web pages |
|
7 |
I can
explain and use XHTML |
|
8 |
I know the
basics of Javascript (before the 2 constructs) |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow:
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||
|
Outcome # |
Fall 2006 |
Fall 2007 |
Fall 2006 |
Fall 2007 |
|
1 |
72% |
72% |
50% |
59% |
|
2 |
69% |
65% |
42% |
41% |
|
3 |
65% |
56% |
38% |
19% |
|
4 |
63% |
63% |
33% |
22% |
|
5 |
73% |
71% |
42% |
37% |
|
6 |
75% |
72% |
58% |
44% |
|
7 |
61% |
77% |
29% |
56% |
|
8 |
65% |
78% |
29% |
59% |
The course outcomes for
“Operating Systems” (2440: 145) are:
|
Number |
Course Outcome |
|
1 |
I can
explain the basics of the Operating Systems Theory (structure of an OS, the 3
layers, their functions, etc.) |
|
2 |
I can describe
the history of UNIX, its various systems and its features |
|
3 |
I can
explain and use basic UNIX commands(login, logout, passed, etc) |
|
4 |
I can
explain and use vi editor |
|
5 |
I can explain
and use the UNIX file system |
|
6 |
I can
explain and use UNIX shells |
|
7 |
I can
explain and use UNIX communication (mesg, wall, mailx, news, etc.) |
|
8 |
I know the
basics of program development and can write simple UNIX scripts |
|
9 |
I know and
can use some common UNIX utilities (cal, date, du, etc) |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow:
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||||
|
Outcome # |
Spring 2007 |
Fall 2007 |
Fall 2008 |
Spring 2007 |
Fall 2007 |
Fall 2008 |
|
1 |
75% |
49% |
47% |
63% |
8% |
11% |
|
2 |
68% |
78% |
78% |
33% |
62% |
59% |
|
3 |
75% |
66% |
74% |
50% |
46% |
52% |
|
4 |
49% |
58% |
56% |
4% |
35% |
19% |
|
5 |
57% |
62% |
68% |
21% |
42% |
44% |
|
6 |
|
48% |
47% |
|
12% |
4% |
|
7 |
|
70% |
80% |
|
62% |
56% |
|
8 |
|
|
63% |
|
|
30% |
|
9 |
|
|
57% |
|
|
26% |
The course outcomes for “Visual
Basic” (2440: 170) are:
|
Number |
Course Outcome |
|
1 |
I can
explain and use the elements of Visual Basic (The GUI, simple controls, the
basic form, the integrated development environment, etc.) |
|
2 |
I can
explain and use variables and the 3 basic programming construct in relation
to VB |
|
3 |
I can
explain and use procedures in VB |
|
4 |
I can add
forms to a VB project and can use lists, etc with programming in VB |
|
5 |
I can use
the printing controls and code them in VB |
|
6 |
I can
explain and use arrays in VB |
|
7 |
I can use
Web Forms in VB |
|
8 |
I can
connect to a database using VB and can code to navigate through and access
the database |
|
9 |
I can use
file management methods in VB |
|
10 |
I
understand classes in VB |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow:
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||||
|
Outcome # |
Spring 2007 |
Spring 2008 |
Spring 2009 |
Spring 2007 |
Spring 2008 |
Spring 2009 |
|
1 |
88% |
88% |
81% |
100% |
100% |
92% |
|
2 |
71% |
66% |
68% |
60% |
43% |
50% |
|
3 |
71% |
75% |
67% |
80% |
71% |
50% |
|
4 |
71% |
77% |
69% |
40% |
86% |
58% |
|
5 |
80% |
43% |
67% |
60% |
14% |
67% |
|
6 |
53% |
70% |
67% |
20% |
72% |
25% |
|
7 |
|
|
|
|
|
|
|
8 |
75% |
56% |
71% |
50% |
43% |
50% |
|
9 |
76% |
65% |
56% |
70% |
86% |
25% |
|
10 |
|
68% |
|
|
57% |
|
The course outcomes for “Systems
Analysis & Design” (2440: 241) are:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the context of systems development projects |
|
2 |
I
understand and can use the important Systems Analysis methods using the
traditional approach |
|
3 |
I
understand and can use the important Systems Design methods using the traditional
approach |
|
4 |
I
understand the concepts in construction and implementation of complete
systems |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow.
For Fall 2006 the text was by
Satzinger, et. al. and for Fall 2007 and Fall 2008 the text was by Whitten
& Bentley.
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||||
|
Outcome # |
Fall 2006 |
Fall 2007 |
Fall 2008 |
Fall 2006 |
Fall 2007 |
Fall 2008 |
|
1 |
84% |
71% |
79% |
93% |
56% |
71% |
|
2 |
75% |
65% |
72% |
79% |
33% |
43% |
|
3 |
77% |
64% |
73% |
79% |
33% |
57% |
|
4 |
67% |
58% |
67% |
57% |
33% |
57% |
The course outcomes for “C++
Programming” (2440: 256) are:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the basics of C++; C++ program structure;
Integrated Development Environment |
|
2 |
I
understand and can explain the 3 basic programming constructs in relation to
C++ |
|
3 |
I
understand and can use functions |
|
4 |
I
understand and can use classes (excluding multiple inheritance, etc.) |
|
5 |
I
understand and can use arrays in C++ |
|
6 |
I
understand and can use basic pointers |
|
7 |
I
understand and can use basic file management concepts in C++ |
The outcomes were analyzed for
the percentage of students who scored 70% or above on each outcome and the mean
student scores on each outcome. The results follow.
The Fall 2006 course was an online
offering using the text by Deitel & Deitel, while the Fall 2008 course was
face-to-face delivery using the text by Gaddis.
|
|
Mean Student Score |
Number of Students Achieving 70% or more on
the Outcome |
||
|
Outcome # |
Fall 2006 (online course) |
Fall 2008 (face-to-face course) |
Fall 2006 (online course) |
Fall 2008 (face-to-face course) |
|
1 |
82% |
80% |
80% |
59% |
|
2 |
61% |
69% |
33% |
41% |
|
3 |
57% |
81% |
20% |
47% |
|
4 |
54% |
65% |
13% |
29% |
|
5 |
53% |
81% |
33% |
64% |
|
6 |
40% |
71% |
0% |
41% |
|
7 |
61% |
76% |
20% |
53% |
I have measured student
perceptions of course outcomes in some of my courses. This was done to see if
the students themselves feel that they have learned something in the relevant
courses. The perceptions (or opinions) were measured in the beginning of the
courses and then again at the end of the courses and then compared to see if
there was a significant change in the students’ rating of their knowledge. Some
of the results presented here are indirect measures of course outcomes.
Specifically, the courses and the semesters when the outcomes were measured together
with the number of students completing the surveys were:
Table 3
Courses in Which Students Were Surveyed
|
Semester |
Course |
Number of Students in the Course[2] |
|
Fall 2007 |
Digital
Circuits |
10 |
|
Fall 2007 |
Systems
Analysis & Design |
8 |
|
Spring 2008 |
Microprocessor
Applications |
10 |
|
Fall 2008 |
Digital
Circuits |
11 |
|
Fall 2008 |
Systems
Analysis & Design |
7 |
|
Fall 2008 |
C++ |
14 |
|
Spring 2009 |
Visual
Basic |
13 |
|
Spring 2009 |
Communication
Systems |
13 |
|
Spring 2009 |
Biomedical
Electronic Instrumentation |
16 |
The students rated the course
outcomes for all these courses using a 4-point Likert scale.
|
Description of Rating |
Rating |
|
Never
heard of it |
1 |
|
Had heard
of it, but didn’t really know what it meant |
2 |
|
Had some
idea of what this meant, but not too clear |
3 |
|
Had a
clear idea of what this meant and could explain it |
4 |
Results for individual courses
are presented now. For my purposes I arbitrarily use 70% level as a good bar,
that is, if 70% or more students feel that they have gained on a particular
outcome I think that I am doing well on that outcome. If less than 70% students
feel that they did not learn on an outcome then I think I need to work on that
outcome.
The course outcomes for “Digital
Circuits” (2860: 237) are presented here again:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the basics of digital circuits (analog/digital
representation, number systems, Boolean algebra, Karnaugh maps, basic gates) |
|
2 |
I can
differentiate the different digital ICs and their characteristics |
|
3 |
I can
analyze, design, build, and troubleshoot a broad range of combinational
circuits using digital ICs |
|
4 |
I
understand and can explain flip-flops, one-shots, and timers |
|
5 |
I can
analyze, design, build, and troubleshoot a broad range of counters |
|
6 |
I
understand and can explain shift register basics, the various kinds, their
operating characteristics, and applications |
|
7 |
I can do
computer modeling of digital circuits |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
|
Outcome # |
Mean Ratings |
|||
|
Fall 2007 |
Fall 2008 |
|||
|
Pre-Course |
Post-Course |
Pre-Course |
Post-Course |
|
|
1 |
2.92 |
3.48 |
3.02 |
3.61 |
|
2 |
1.49 |
2.27 |
1.57 |
2.85 |
|
3 |
1.71 |
3.38 |
2.11 |
3.65 |
|
4 |
1.39 |
3.40 |
2.19 |
3.57 |
|
5 |
1.46 |
3.42 |
2.13 |
3.52 |
|
6 |
1.27 |
3.22 |
1.71 |
3.51 |
|
7 |
1.65 |
2.15 |
1.66 |
2.93 |
|
p-Value |
0.002242 |
8.12E-05 |
||
|
Confidence Level |
99.0% |
99.0% |
||
|
Significance @ a = 0.01 |
Significantly
different |
Significantly different |
||
|
Power of the test @ a = 0.01 |
0.937 |
1.0 |
||
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
|
|
Fall 2007 |
Fall 2008 |
|
1 |
80% |
91% |
|
2 |
10% |
36% |
|
3 |
90% |
91% |
|
4 |
90% |
91% |
|
5 |
80% |
82% |
|
6 |
60% |
82% |
|
7 |
0% |
64% |
The course outcomes for “Microprocessor
Applications” (2860: 238) are presented here:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the various types of memory systems |
|
2 |
I can
analyze and design memory and memory decoding systems |
|
3 |
I
understand the fundamentals of microcomputing environment (e.g., hardware functions,
processor architecture, etc.) |
|
4 |
I can
analyze, design, build and test hardware and software applications |
|
5 |
I can use
assembly language |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
|
Outcome number |
Mean Ratings |
|
|
Spring 2008 |
||
|
Pre-Course |
Post-Course |
|
|
1 |
2.67 |
3.60 |
|
2 |
1.73 |
2.56 |
|
3 |
1.71 |
2.80 |
|
4 |
1.62 |
2.33 |
|
5 |
1.83 |
2.79 |
|
p-value |
0.000152724 |
|
|
Confidence Level |
99.00% |
|
|
Significance @ a = 0.01 |
Significantly
different |
|
|
Power of the test @a = 0.01 |
1.0 |
|
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
Spring 2008 |
|
|
1 |
90% |
|
2 |
30% |
|
3 |
30% |
|
4 |
10% |
|
5 |
20% |
The course outcomes for
“Communication Systems” (2860: 406) are presented here:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain different types of traditional modulation |
|
2 |
I can
explain systems to digitize and transform analog data to digital format |
|
3 |
I can
explain the basics of Information Theory |
|
4 |
I understand
and can explain different types of data encoding |
|
5 |
I can
explain the functioning of transmission lines wave propagation |
|
6 |
I can
explain the functioning and components of digital television |
|
7 |
I can
explain the concepts of satellite systems, spread spectrum techniques, etc. |
|
8 |
I can
explain the concepts and functioning of optical fibers |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
|
Outcome number |
Mean Rating |
|
|
Spring 2009 |
||
|
Pre-Course |
Post-Course |
|
|
1 |
2.32 |
3.41 |
|
2 |
2.24 |
3.58 |
|
3 |
2.16 |
3.37 |
|
4 |
1.72 |
3.18 |
|
5 |
1.76 |
3.41 |
|
6 |
1.76 |
3.36 |
|
7 |
1.28 |
3.59 |
|
8 |
1.67 |
3.15 |
|
p-value |
8.11764E-06 |
|
|
Confidence Level |
99.00% |
|
|
Significance @ a = 0.01 |
Significantly
different |
|
|
Power of the test @a = 0.01 |
1.0 |
|
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
Spring 2009 |
|
|
1 |
69% |
|
2 |
85% |
|
3 |
77% |
|
4 |
62% |
|
5 |
77% |
|
6 |
69% |
|
7 |
85% |
|
8 |
77% |
The course outcomes for
“Biomedical Electronic Instrumentation” (2860: 420) are presented here:
|
Number |
Course Outcome |
|
1 |
I can
define a medical device |
|
2 |
I
understand and can explain the functioning of transducers, sensors,
electrodes, etc. |
|
3 |
I
understand and can explain biopotentials |
|
4 |
I
understand and can explain the functioning of bioamplifiers |
|
5 |
I
understand and can explain the functioning of shocks (macro and micro); also
concerns of safety |
|
6 |
I
understand and can explain the functioning of ECG,VCG |
|
7 |
I
understand and can explain the functioning of EEG |
|
8 |
I can
explain other cardiac parameters and how to measure them (BP, etc) |
|
9 |
I
understand different types of imaging and can explain their functioning |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
For Spring 2009:
|
Outcome number |
Mean Rating |
|
|
Spring 2009 |
||
|
Pre-Course |
Post-Course |
|
|
1 |
2.29 |
3.74 |
|
2 |
2.29 |
3.46 |
|
3 |
1.66 |
3.58 |
|
4 |
2.10 |
3.87 |
|
5 |
2.20 |
3.59 |
|
6 |
1.40 |
3.58 |
|
7 |
1.20 |
3.60 |
|
8 |
1.26 |
3.17 |
|
9 |
2.19 |
4.00 |
|
p-value |
7.91735E-07 |
|
|
Confidence Level |
99.00% |
|
|
Significance @ a = 0.01 |
Significantly
different |
|
|
Power of the test @a = 0.01 |
1.0 |
|
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
Spring 2009 |
|
|
1 |
94% |
|
2 |
88% |
|
3 |
81% |
|
4 |
94% |
|
5 |
88% |
|
6 |
88% |
|
7 |
94% |
|
8 |
53% |
|
9 |
100% |
The course outcomes for “Visual
Basic” (2440: 170) are presented here again:
|
Number |
Course Outcome |
|
1 |
I can
explain and use the elements of Visual Basic (The GUI, simple controls, the
basic form, the integrated development environment, etc.) |
|
2 |
I can explain
and use variables and the 3 basic programming construct in relation to VB |
|
3 |
I can
explain and use procedures in VB |
|
4 |
I can add
forms to a VB project and can use lists, etc with programming in VB |
|
5 |
I can use
the printing controls and code them in VB |
|
6 |
I can
explain and use arrays in VB |
|
7 |
I can use
Web Forms in VB |
|
8 |
I can
connect to a database using VB and can code to navigate through and access
the database |
|
9 |
I can use
file management methods in VB |
|
10 |
I
understand classes in VB |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
|
Outcome number |
Mean Rating |
|
|
Spring 2009 |
||
|
Pre-Course |
Post-Course |
|
|
1 |
2.50 |
3.68 |
|
2 |
2.03 |
3.61 |
|
3 |
2.16 |
3.43 |
|
4 |
1.85 |
3.60 |
|
5 |
2.00 |
3.77 |
|
6 |
1.68 |
3.27 |
|
7 |
1.64 |
3.22 |
|
8 |
1.83 |
3.33 |
|
9 |
1.69 |
3.35 |
|
10 |
|
|
|
p-value |
1.29228E-08 |
|
|
Confidence Level |
99.00% |
|
|
Significance @ a = 0.01 |
Significantly
different |
|
|
Power of the test @a = 0.01 |
1.0 |
|
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
Spring 2009 |
|
|
1 |
92% |
|
2 |
92% |
|
3 |
92% |
|
4 |
92% |
|
5 |
100% |
|
6 |
62% |
|
7 |
77% |
|
8 |
85% |
|
9 |
85% |
|
10 |
|
The course outcomes for “Systems
Analysis & Design” (2440: 241) are presented here again:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the context of systems development projects |
|
2 |
I
understand and can use the important Systems Analysis methods using the
traditional approach |
|
3 |
I
understand and can use the important Systems Design methods using the
traditional approach |
|
4 |
I
understand the concepts in construction and implementation of complete
systems |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
|
|
Mean Ratings |
|||
|
|
Fall 2007 |
Fall 2008 |
||
|
Outcome # |
Pre-Course |
Post-Course |
Pre-Course |
Post-Course |
|
1 |
1.56 |
3.09 |
1.71 |
3.58 |
|
2 |
1.79 |
3.05 |
1.92 |
3.62 |
|
3 |
2.47 |
3.20 |
2.31 |
3.60 |
|
4 |
2.40 |
3.20 |
1.86 |
3.64 |
|
p-Value |
0.00249 |
0.000971658 |
||
|
Confidence Level |
99.0% |
99.0% |
||
|
Significance @ a = 0.01 |
Significantly
different |
Significantly different |
||
|
Power of the test @a = 0.01 |
0.968 |
1.0 |
||
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
|
|
Fall 2007 |
Fall 2008 |
|
1 |
75% |
100% |
|
2 |
75% |
86% |
|
3 |
75% |
86% |
|
4 |
5% |
100% |
The course outcomes for “C++” (2440:
256) are presented here again:
|
Number |
Course Outcome |
|
1 |
I
understand and can explain the basics of C++; C++ program structure;
Integrated Development Environment |
|
2 |
I
understand and can explain the 3 basic programming constructs in relation to
C++ |
|
3 |
I
understand and can use functions |
|
4 |
I
understand and can use classes (excluding multiple inheritance, etc.) |
|
5 |
I
understand and can use arrays in C++ |
|
6 |
I
understand and can use basic pointers |
|
7 |
I
understand and can use basic file management concepts in C++ |
The course outcomes surveys were
analyzed for the means ratings on each outcome pre-course and post-course. At
the end of the course the two were compared for significance. The results
follow:
|
Outcome number |
Mean Rating |
|
|
Fall 2008 |
||
|
Pre-Course |
Post-Course |
|
|
1 |
2.59 |
3.92 |
|
2 |
2.71 |
3.86 |
|
3 |
2.58 |
3.71 |
|
4 |
2.02 |
3.66 |
|
5 |
2.65 |
3.87 |
|
6 |
2.21 |
3.60 |
|
7 |
2.07 |
3.64 |
|
p-value |
1.59549E-06 |
|
|
Confidence Level |
99.00% |
|
|
Significance @ a = 0.01 |
Significantly
different |
|
|
Power of the test @a = 0.01 |
1.0 |
|
The following table summarizes
the percent of students who felt that they gained (significantly) for an
outcome (rated at least a 3 for the outcome) in the course.
|
Outcome number |
Percent of Students Rating 3 or above in
Post-Course Survey |
|
Fall 2008 |
|
|
1 |
100% |
|
2 |
100% |
|
3 |
93% |
|
4 |
93% |
|
5 |
100% |
|
6 |
79% |
|
7 |
93% |
The data presented above has
sometimes not had enough students in a course and sometimes there are not
enough data points for analysis. I have still done some analyses. In some cases
the results may not be statistically reliable. Yet from the overall data some
conclusions can be drawn.
From student evaluations there is
a very clear trend going slightly upward over the years which can be taken as
an improvement over the years.
I am still working on direct and
indirect measures of outcomes. Using the objective measure I have tried to
assess how well the student actually achieve an outcome, while using surveys I
try to measure how well the student are satisfied and if they feel they have
gained anything out of the course. The results from objective measures (exams)
depend on several factors, including student’s class level (freshman,
sophomore, etc), difficulty of the exams, the language capabilities of
students, among others. I am using these measurements to approximately trace areas
which students find “difficult” for some reason and the areas in which students
feel they are learning the least.
In the case of the indirect
measures I have can assess the students’ feeling of learning. I have assumed
for the purposes of statistical tests that the student responses are samples
from a normal distribution. Since usually the number of outcomes is less than
10, I have estimated the power of the t-tests besides the significance at a 99%
level. Besides these the consistency of results together with their
correspondence with the results from the objective measures is important.
I have just presented some
results above without going into details of which areas the student find “more
difficult”, since that is not the purpose of this document. This information is
easily obtained from combining the results from objective and indirect measures
of outcomes and is more relevant to the areas I have taught, namely, Computer
Information Systems (CIS) and Electronic Engineering Technology (EET). They
would also be of more interest to only the faculty in these areas.
To present a brief taste of the
future of these studies I am including integration of the results for the first
outcome (Basic knowledge of Windows) in the “Introduction to Computers and
Application Software” course over the offerings in 2008 and 2009. Rest of the
study is not finished yet. In the graph below 0 (zero) represents results
without taking the course and 1 (one) is the maximum a student can achieve
after taking the course in this outcome.
In this diagram the “Std. Mean
Difference” and the “SE” (Standard error) columns are results obtained from
students’ responses to exam questions. The rest of the three columns on the
right of the “SE” column are the results of analyses. The results of the
analyses indicate that the five groups of students were very likely samples
from the similar student populations and that there was significant learning. On
the average students scored 87% on this outcome with a confidence interval from
73% to 100% at the 95% confidence level. Integrating results from different
semesters I can in this way increase the reliability and power of the
statistical tests and hence my conclusions that I may draw from the data.
[1] This column enlists the number of students filling out the evaluations. It is not the same as the students enrolled in the class or who took all the exams.
[2] This refers to the number of students who completed the surveys. It is not necessarily the same as the number of students enrolled in the course or the number of students who took the exams.