For questions regarding the study and design of the interface through which humans interact with computers through software, a discipline which draws upon knowledge from computer science and the cognitive sciences

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19
votes
1answer
525 views

Why is white on black considered higher contrast than black on white?

While researching to answer Why are "Inverted Colors" considered an accessibility feature? I noticed the puzzling claim that "White text on a black background is a higher contrast to the opposite, so ...
17
votes
2answers
1k views

What is the threshold where actions are perceived as “instant”?

In Human Computer Interaction and User Experience there's some oft repeated rules of performance: 0.1 second is about the limit for having the user feel that the system is reacting ...
13
votes
1answer
511 views

Is there a reasonably valid and reliable self-measure of computer literacy?

Measuring computer literacy or skill is important when grouping respondents for usability studies and other Human Computer Interaction studies. But for the life of me I can't find a good, simple but ...
11
votes
1answer
329 views

Under what conditions does 60hz video produce visual artifacts?

There are some important thresholds of frame rate in video playback that effect whether or not animation appears fluid. This wikipedia page about Visible Frame Rate suggests that a framerate of 60 ...
6
votes
1answer
346 views

What is the cognitive cost of switching contexts?

A common reason to use Conventions and standards in Human Computer Interaction is to limit the cost of Context Switching. I searched to find general evidence of the cognitive costs of context ...
6
votes
2answers
222 views

How does syntax highlighting affect the learning of a new programming language?

What impact does syntax highlighting have on students' progress in learning a new programming language? I'm looking for studies along the lines of the following hypothetical experiment, which ...
6
votes
2answers
159 views

Is ignoring messages a learned behavior?

As someone that works troubleshooting stuff, I've seen a surprising amount of people that, when confronted with messages, warnings and errors, tend to seek help fast (or early in the process) in the ...
5
votes
1answer
133 views

Psychological research on memorability of passwords?

There are lots of ad-hoc rules that people are happy to propose about passwords, such as: Pick a phrase you can remember easily, and then use the initial letters. A random short sequence of letters, ...
5
votes
1answer
71 views

How to design ballot papers with a large number of candidates in a preferential system?

Background: In the 2013 Australian Federal election, several parties were elected to the senate seemingly because of usability issues related to the ballot paper (see here for discussion). For ...
5
votes
1answer
88 views

What is the impact of showing the amount of unattended notifications to the user?

What is the difference in cognitive effects on the user between simply showing that there are 'some' unattended notifications, or showing how many notifications there are? Take Facebook's ...
5
votes
0answers
68 views

Why do many people play Candy Crush without ever buying anything while some spend all their money on it?

I'm trying to understand how free-to-play games like Candy Crush Saga use existing knowledge of the human brain to keep people engaged and how they convince players to pay money for in-game goods. ...
3
votes
1answer
125 views

What is the psychology of notification colour?

After reading the question What is the impact of showing the amount of unattended notifications to the user, it occurred to me that many notifications (certainly not all) are red, two examples being ...
2
votes
3answers
162 views

Why do many people not use tabbed navigation (e.g. in an internet browser)?

I have noticed that many people do not use tabs even though tabs have been around in browsers for some time. I have been noticing that people either do not differentiate tabs as specific navigational ...
2
votes
1answer
75 views

Any research on right-hand/left-hand based preferences when interacting with an interface?

My original question is "Left or right placement of interactive elements on a web page", but only now did I find a place where I think I can find the right people to understand it. The gist is: is ...
2
votes
0answers
46 views

Optimising visual clutter for target audiences

I am studying Human Computer Interaction (HCI) and there is a lot of discussion about consistency across a website, predictability between pages, of theme and layout. There is information about color, ...
2
votes
0answers
167 views

What is the relationship between computer game performance and measures of ability? [duplicate]

Possible Duplicate: Any work being done on Perception, Action, and/or Cognition in Video games? What is the relationship between computer game performance and measures of ability?
1
vote
1answer
39 views

What is the best way to structure an ethnographic study?

I'm writing an ethnographic study for a human computer interaction module and I understand all the processes of conducting ethnography. I am unsure of how to structure my study. Is it conventional ...