Collaborative Cross-media Annotation of Documents - Human-Computer Interaction - page 115

Fig. 5.9 Comparing annotating with CoScribe with traditional pen and paper and a laptop (error
lines indicate the 95 % confidence intervals of the means)

9 9

8 8

7 7

6 6

5 5

4 4

3

2

1

0

020 2140 4160 6180 81100 101120 121140 141160

AnnotationsperLecture

Fig. 5.10 Histogram of the total number of annots. made per participant during a 90 min. lecture

30 30 30 30 30 30

25 25 25 25 25 25

20 20 20 20 20 20

15 15 15 15 15

10 10 10 10

5 5 5 5

0 0 0

0 0.5 0.5 1 1 1.5 1.5 2 2 2.5 2.5 3 3 3.5 3.5 4 4 4.5 >4.5 0 0.5 0.5 1 1 1.5 1.5 2 2 2.5 2.5 3 3 3.5 3.5 4 4 4.5 >4.5 0 0.5 0.5 1 1 1.5 1.5 2 2 2.5 2.5 3 3 3.5 3.5 4 4 4.5 >4.5

Averagenumberofannotationsperparticipant Averagenumberofannotationsperparticipant

Fig. 5.11 Histogram of the average number of annotations each participant made on a single slide