Table 5 t-test results from comparison of lecture exam performance based on enrollment in lab

Blooms-level

t

df

p

(a) Pre-assessment

Know/comp

−0.21

590

0.83

-

Application

0.072

593

0.94

-

Analysis

−0.62

587

0.53

-

(b) Exam: unrelated

3.48

909.9

<0.001

4.32 (1.9 – 6.8)

(c) Exam: lab & lecture

Knowledge

9.76

973.6

< 0.001

11 (8.8 – 13)

Comprehension

7.21

949.7

<0.001

9.0 (6.6 – 11)

Application

7.36

968.4

<0.001

8.9 (6.5 - 11)

Analysis

6.32

952.9

<0.001

6.3 (3.6 – 9.0)

(d) Difference

4.3

959.0

<0.001

5.9 (3.2 – 8.6)