Evaluation - Advances in Personalized Web-Based Education - page 111

Table 4.12 Descriptive statistics of reading times
Background Mean Std. deviation N

Times_of_
reading

Group A Arts 1.4533 0.15744 12

0.9092 0.07805 13

Computer science related

Science (other than computers) 1.1760 0.12955 10

1.1720 0.26259 35

Total

Group B Arts 1.7325 0.20064 12

1.2400 0.15138 13

Computer science related

1.4340 0.19202 10

Science (other than computers)

Total 1.4643 0.27526 35

Table 4.13 Levene's test of equality of error variances for reading times
F df1 df2 Sig.

5 64 0.063

2.223

Table 4.14 Tests of between-subjects effects for reading times
Source Type III sum of squares df Mean square F Sig.

4.869 a 5 0.974 40.300 0.000

Corrected model

Intercept 121.273 1 121.273 5,018.842 0.000

1.447 1 1.447 59.894 0.000

Group

3.357 2 1.679 69.473 0.000

Background

Group * background 0.017 2 0.008 0.342 0.712

1.546 64 0.024

Error

128.040 70

Total

Corrected total 6.415 69

Table 4.15 Multiple Comparisons about reading times for group A
(I) background (J) Background Mean difference

(I-J)

Std.
error

Sig.

0.5441 * Computer science related 0.04988 0.000

Arts

0.2773 *

0.05335 0.000

Science (other than
computers)

− 0.5441 *

Computer science related Arts 0.04988 0.000

− 0.2668 * 0.05241 0.000

Science (other than
computers)

− 0.2773 *

Science (other than
computers)

Arts 0.05335 0.000

0.2668 * 0.05241 0.000

Computer science related

* The mean difference is significant at the .05 level

background on arts and the learners with background on sciences other than com-
puters (Sig. < 0.0005); between the learners with background on sciences other
than computers and the learners with background on computer-related sciences
(Sig. < 0.0005); and the learners with background on arts and the learners with