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Table 2 End of semester survey results (Fall 2015 and Spring 2016)

From: Incorporating industrial design pedagogy into a mechanical engineering graphics course: a discipline-based education research (DBER) approach

Survey item

Fall 2015

Spring 2016

Control

Experimental

t value

New

Veteran

t value

N

Mean

SD

N

Mean

SD

N

Mean

SD

N

Mean

SD

The sketching training was useful throughout the semester.

41

4.39

1.16

95

4.53

0.94

0.72

138

4.36

1.14

170

4.51

1.01

− 1.28

I continued to sketch for this course after the sketching portion of the course was over, even when it was not directly assigned.

40

2.90

1.37

95

3.63

1.33

2.89*

138

3.02

1.39

170

3.07

1.42

− 0.30

The sketching training increased my understanding of what I was doing in CAD.

41

4.15

1.04

95

4.08

1.14

− 0.30

138

3.95

1.36

169

3.82

1.23

0.90

The sketching training increased my ability to determine what was and was not feasible in CAD.

41

3.61

1.28

94

3.56

1.36

− 0.18

138

3.47

1.31

170

3.48

1.20

− 0.04

The sketching training increased my ability to visualize things in CAD.

41

3.98

1.08

95

4.13

1.17

0.71

138

4.16

1.34

170

4.18

1.19

− 0.12

I see more value in the sketching training now that I have learned CAD as compared to before I learned CAD.

41

3.98

1.27

95

4.01

1.12

0.16

138

3.89

1.31

170

3.81

1.26

0.58

The CAD instruction I received in this course was of sufficient length.

41

4.44

1.29

94

4.62

1.00

0.87

138

4.28

1.27

169

4.17

1.10

0.76

The CAD instruction I received in this course covered all of the topics relevant to the course goals.

41

4.80

0.84

94

4.81

0.82

0.02

138

4.60

1.08

170

4.52

0.99

0.66

The CAD instruction I received in this course was useful in helping me learn CAD.

41

5.20

0.51

94

4.68

1.19

− 3.51*

138

4.94

1.01

168

4.60

1.09

2.84*

I feel confident in my ability to use CAD to successfully execute the types of designs covered in this course.

41

5.17

0.67

94

4.94

0.79

− 1.66

138

5.07

0.81

169

4.71

1.02

3.48*

I feel confident in my ability to use CAD moving forward to later courses, internships, and/or co-ops.

41

5.10

0.80

94

4.99

0.91

− 0.66

138

4.86

0.93

170

4.64

1.05

1.96

The CAD instruction I received in this course was sufficiently detailed and thorough for me to feel comfortable with lab assignments.

41

4.44

1.05

92

4.60

1.24

0.71

138

4.38

1.23

169

4.10

1.09

2.06*

The amount of CAD training I was expected to learn on my own was appropriate.

41

4.37

1.20

92

4.34

1.29

− 0.12

138

4.15

1.29

170

4.10

1.14

0.38

I had sufficient access to help from instructors and TAs while I was working on CAD assignments.

41

4.27

1.25

92

4.80

1.00

2.65*

138

4.44

1.25

169

4.42

1.07

0.17

The workload associated with the CAD portion of the course was appropriate.

41

4.37

0.89

92

4.96

0.75

3.71*

138

4.35

1.06

170

4.49

0.93

− 1.24

The CAD instruction sufficiently addressed basic manufacturing processes and vocabulary.

40

5.05

0.75

92

4.65

1.02

− 2.50*

137

4.42

0.98

170

4.63

0.87

− 1.95

The CAD instruction was successful in helping me understand the necessary considerations for manufacturing design.

41

4.83

0.89

92

4.65

0.99

− 0.98

138

4.24

1.06

170

4.49

0.96

− 2.16*

The 3D printing/individual design project was useful.

41

5.15

0.69

91

5.08

0.99

− 0.41

138

4.41

1.06

170

4.76

0.88

− 3.19*

The 3D printing/individual design project was enjoyable.

41

4.68

1.08

91

4.93

1.10

1.22

137

4.07

1.27

170

4.74

1.02

− 5.04*

The format of the 3D printing/individual design project was appropriate.

41

5.07

0.75

91

5.01

0.84

− 0.41

138

4.49

1.01

170

4.72

0.88

− 2.20*

The workload associated with the 3D printing/individual design project was appropriate.

40

4.68

0.92

91

4.96

0.93

1.60

138

4.14

1.14

170

4.76

0.83

− 5.31*

I was satisfied with my level of access to the 3D printers. [experimental sections only]

n/a

91

4.74

1.22

n/a

Due to a survey error, experimental group sections were not asked the experimental section version; their data will be disregarded.

n/a

I would have found it useful to be able to print my individual design project on the 3D printer. [control sections only]

41

4.29

1.52

n/a

n/a

138

4.30

1.37

n/a

n/a

The 3D printing/individual design project increased my understanding of CAD.

41

4.98

0.91

90

4.86

1.13

− 0.60

138

4.65

1.05

170

4.94

0.84

− 2.62*

The 3D printing/individual design project increased my understanding of sketching.

41

4.51

1.19

91

3.95

1.26

− 2.44*

138

3.90

1.30

170

3.71

1.36

1.22

The 3D printing/individual design project reinforced my interest in my major.

41

4.54

1.25

91

4.93

1.03

1.92

138

3.96

1.36

170

4.58

1.19

− 4.26*

The team project was useful.

40

5.18

0.55

91

5.00

0.80

− 1.25

138

4.51

1.11

169

4.62

0.88

− 0.93

The team project was enjoyable.

41

4.49

1.08

91

4.57

1.14

0.40

138

4.08

1.19

170

4.20

1.14

− 0.90

The format of the team project was appropriate.

41

4.85

0.82

91

4.91

0.84

0.37

138

4.40

1.00

169

4.58

0.81

− 1.72

The workload associated with the team project was appropriate.

41

4.46

1.16

91

4.63

1.14

0.75

138

3.94

1.25

169

4.41

0.97

− 3.63*

The team project increased my understanding of CAD.

41

5.22

0.69

91

4.89

1.17

− 2.02

137

4.64

1.06

170

4.60

0.95

0.37

The team project increased my understanding of sketching.

41

4.27

1.30

91

3.88

1.32

− 1.58

138

3.83

1.28

170

3.88

1.23

− 0.39

The team project reinforced my interest in my major.

41

4.71

1.01

91

4.74

1.11

0.14

138

4.12

1.28

170

4.38

1.17

− 1.91

  1. n/a not applicable 
  2. *Statistical significance of p < .05