adaptation’ (Dessart et al., 2011). In their research
they found that this approach reduced the amount of
disruption to the user. However, there were some
negative aspects with the approach, which suggested
that the animations should have been faster and easier
to bypass. It was further indicated that some of the
adaptive steps could have been made smaller or
combined together.
Other researchers (Rendell et al., 2022) have
investigated from a more psychological perspective,
the use of ’nature’ type images (e.g. water and
vegetation) at the user interface. This was in relation to
commercial type websites and the effect on end users.
The authors’ experimental results indicate that ‘percei-
ved nature presence has a positive influence on user
perceptions of trust and visual aesthetics in response to
a corporate sales user interface (Rendell et al., 2022)’.
Another study (Abrahamian et al.,2004) showed
that having a personality aware user interface
concerning certain human personality traits in a
learning environment context can have positive
effects. Abrahamian et al. (2004) obtained data to
show that use of a personality aware user interface
tended to significantly increase test scores in
participants. Further, initial results indicated that
subjective satisfaction was higher when the
personality aware user interface was used by the
respective participants.
Certain researchers have concentrated on specific
elements of a user interface with the aim of improving
user interfaces, e.g. in Murano and Lomas (2015) web
page menu positioning was investigated. In their
study the authors experimented with four menu
positions (left vertical, right vertical, top horizontal
and bottom horizontal). The results showed that the
menu positions that were most efficient were the top
horizontal and left vertical positioned menus. Overall,
these resulted in participants doing less errors and less
mouse clicks, when compared with the other two
positions investigated. Participant satisfaction was
aligned to the quantitative results.
Another example of investigating certain
elements of the user interface is found in the article
by Al-Jasim and Murano (2023). This work
investigated in conjunction with real users the most
appropriate ways of designing toggles within a user
interface. Based on the results, the authors devised a
series of guidelines for best practice in incorporating
toggles in an interaction.
This background section has demonstrated that
the efforts of researchers aiming to constantly
improve user interfaces and the user experience are
both numerous and creative. As mentioned in the
Introduction section, the authors of this paper have
been investigating the usability of web page persistent
headers and non-persistent headers. Therefore, the
next section will present the results of an experiment
conducted with the aim of obtaining concrete results
by means of a formalized approach.
3 THE EVALUATION
3.1 Prototypes Used for the
Experiment
In order to run the experiment, a newspaper type
website was developed as an environment. Two
identical prototype websites were developed, with the
only difference being the header, and whether it was
persistent or not. This would allow for an
experimental comparison where the only variations in
each prototype would be the header type. The headers
were designed by broadly following the guidance in
Laubheimer (2021).
A newspaper website is something many users are
familiar with and a typical website that could use
headers. Some headers of big news corporations can
contain elements like a logo, main navigation and a
search box (e.g. see nrk.no and bbc.com/news). For
our experiment we chose to focus mostly on the
navigation with a header containing the main
navigation of the web page. Five main buttons/links
to different sites were implemented for the header.
These were called ‘Home’, ‘Sport’, ‘Celebrity’,
‘Finance’, and ‘Foreign’. The ‘Home’ button took
one to the homepage which is filled with news
articles. The remaining header elements took one to
pages with news articles within their subject area.
Figures 1-3 show some sample screenshots of the two
prototypes (We note that for potential copyright
reasons the images have been removed for this paper.
However, in the experiment, these were visible to
participants.).
3.2 Hypotheses
This experiment operated around two main
hypotheses concerning the use of header designs.
These are as follows:
H
1
: There will be a statistically significant
difference between header types for performance.
H
01
: There will be no statistically significant
difference between header types for performance.
H
2
: There will be a statistically significant
difference between header types for user experience.
H
02
: There will be no statistically significant
difference between header types for user experience.