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Table 2 Changes in pre-course, post-course, and pre-clinics knowledge scores

From: Effectiveness of PBL methodology in a hybrid dentistry program to enhance students’ knowledge and confidence. (a pilot study)

Evaluation

Mean

Std. Deviation

Mean Difference

95% Confidence interval of the difference

t’ value

p’ value

Lower

Upper

Pre-course (lecture based)

3.45

1.73

−.97

−1.9

−.03

−2.1

.04

Pre-course (problem based)

4.42

1.66

Pre-course (lecture based)

3.45

1.73

−3.3

−4.28

−2.32

−6.86

< 0.001

Post-course (lecture based)

6.76

2.36

Pre-course (problem based)

4.42

1.66

−1.54

−2.39

−.69

−3.7

.001

Post-course (problem based)

5.97

1.99

Post-course (lecture based)

6.76

2.36

.79

−.27

1.84

1.52

.14

Post-course (problem based)

5.97

1.99

Pre-clinics (lecture based)

5.09

1.96

−1.67

−2.79

− 0.54

−3.02

.005

Post-course (lecture based)

6.76

2.36

Pre-clinics (problem based)

5.9

2.06

−.07

−1.06

0.94

−0.12

.903

Post-course (problem based)

5.97

1.99

Pre-clinics (lecture based)

5.09

1.96

−.81

−1.83

.19

−1.64

.11

Pre-clinics (problem based)

5.9

2.06