Visual Attention in Newspaper versus TV-Oriented News Websites
William J. Gibbs and Ronan S. Bernas
Journal of Usability Studies, Volume 4, Issue 4, May 2009, pp. 147-165
Article Contents
Results
We first examined the effect of site type (newspaper or television) on the four metrics of ocular behavior: (a) number of fixations overall, (b) fixation duration, (c) gaze time, and (d) saccade rate. We then examined scan paths to identify where participants fixated in the display area and whether there were scan path variations within and across users.
Number of Fixations, Fixation Duration, Gaze Time, and Saccade Rate
A t-test for dependent means was conducted for each of the visual attention measures enumerated in Table 1. Differences in the measures for newspaper versus TV-oriented news Websites were not found to be statistically significant.
| TV-oriented news Website |
Newspaper print-oriented news Website |
|||||
|---|---|---|---|---|---|---|
| Mean | Standard deviation | Mean | Standard deviation | t * | p | |
| Number of fixations | 14.06 | 6.45 | 14.94 | 6.07 | -.69 | .50 |
| Fixation duration(s) | 1.25 | .82 | .99 | .34 | 1.25 | .23 |
| Gaze time(s) | .91 | .05 | .93 | .12 | -.50 | .62 |
| Saccade rate(s) | 1.01 | .47 | 1.13 | .39 | -1.43 | .18 |
| Total viewing time(s) | 13.38 | 1.82 | 12.86 | 1.67 | 1.24 | .24 |
* df = 13
Fixations and Areas of Interest
When number of fixations was examined in terms of target regions of the display (see Figure 1), region D had the highest percent of fixations. Participants fixated mostly in screen areas D (36%) and E (27%), which are areas for headlines and content, respectively (see Figure 1). A chi-square test indicated that fixations in the various screen areas varied by type of site, ?2(5) = 49.89, p < .001. To determine where the specific differences lie, a follow-up chi-square test was performed for each screen area. As shown in Table 2, the number of fixations on screen areas B (site branding, header, and navigation), C (left-hand navigation), and D (headline news content) were significantly more common in TV-oriented Websites than in newspaper print-oriented news Websites. On the other hand, fixations on screen area E (miscellaneous content and advertisements) were significantly more evident in newspaper Websites than TV-oriented ones.
We identified the area of the initial fixation when a homepages loaded. Most (40%) of the first fixations occurred in region A (browser bar), followed by regions B (20%), D (20%), and E (18%). Two percent of initial fixation occurred in region F (browser window area with no content) and 0% in region C.
| Screen area | TV-oriented news Website | Newspaper print-oriented news Website | Total number of fixations in each screen area | X2 | p |
|---|---|---|---|---|---|
| A (browser bar) |
78 13%) |
67 (11%) |
145 (12%) |
1.31 | .25 |
| B (site branding, header, and navigation) |
99 (17%) |
65 (11%) |
164 (14%) |
9.32 | .002 ** |
| C (left-hand navigation rail) |
28 (5%) |
14 (2%) |
42 (3%) |
4.73 | .03 * |
| D (headline news content) |
233 (40%) |
198 (32%) |
431 (36%) |
6.61 | .01 * |
| E (miscellaneous content and advertisements) |
110 (19%) |
211 (35%) |
321 (27%) |
37.30 | .000 *** |
| F (browser window area with no content) |
37 (6%) |
54 (9%) |
91 (8%) |
2.39 | .12 |
| Total number of fixations | 585 | 609 | 1194 |
* p < .05; ** p < .01; *** p < .001
Scan Path Analysis
We calculated the within-user and across-user scan path variances. A t-test for dependent means was conducted and as shown in Table 3, only the across-users average variance/cost between scan paths in newspaper versus TV-oriented Websites was found to be statistically significant, t(13) = 2.27, p = .04. Variance in scan paths between users was significantly higher in newspaper sites (M = 24.98, S.D. = 7.57) than in TV-oriented ones (M = 21.90, S.D. = 8.37).
| TV-oriented news Website |
Newspaper print- oriented news Website |
|||||
|---|---|---|---|---|---|---|
| Mean | Standard deviation | Mean | Standard deviation | t * | p | |
| Within-user average variance/cost between scan paths |
11.67 | 4.87 | 11.65 | 4.25 | .03 | .98 |
| Within-user average variance/cost between scan paths (normalized) |
.70 | .15 | .70 | .11 | -.05 | .96 |
| Across-users average variance/cost between scan paths |
21.90 | 8.37 | 24.98 | 7.57 | 2.27 | .04 ** |
| Across-users average variance/cost between scan paths (normalized) |
.72 | .04 | .73 | .04 | 1.10 | .29 |
* df = 13; ** p < .05
