46

Generally speaking, disruptions and distractions negatively affect human performance, a common finding in cognitive psychology. Many studies have shown that distraction greatly increases task time on a wide variety of tasks. There also exist many Quantitative studies showing task performance is negatively affected by distractions (note these figures are ...


43

My friend at Malmö University, André Mabande, wrote his Bachelor degree on the topic with the title Designing for Dialogue. He concludes that: The findings in this study seem to validate the hypothesis of the chronology as a major factor for generating a consistent discussion within a commenting field. When comments are shown in the order posted (i....


34

Gamification is a design tool. You might call it a buzzword or a temporal rage but it is gaining proper academic support. The most concise definition that I have come across is: Gamification is the use of game element and game design techniques in a non game context. Gamification needs voluntariness (if you are forced in a Points,badge system it is NOT ...


32

Yes, there have been formal studies demonstrating that as users become increasingly familiar with mobile devices, they shift increasingly toward using native apps.4 This trend is likely a combination of three factors: People prefer the familiar. If people know of a site or app that's likely to address their needs, they're more likely to use that known ...


28

I usually get both eager and upset everytime I stuble upon advanced UX topics, like Fitts' law. Eager because I find the basic research very interesting, and upset because there are so many misinterpretations of these. I actually have my own version Fitts' law: Don't use Fitts' law as a formula, use it as a guideline. So, what is the simple guideline ...


28

I'll put in an answer myself here... (Hopefully this will inspire to submit more research links...) Searching the ACM digital library and a few other resources I found a few related articles. Categorization costs for hierarchical keyboard commands (2011) by Miller, Denkov and Omanson Summary Previous research comparing methods of issuing commands ...


23

If you expect comments to be part of a conversation, then you should order them from oldest to newest (bottom posting). This follows reading direction, and is far easier to follow a series of related comments. Examples include this site's comments and Reddit. If you want to emphasise novelty over conversation, you should order comments from newest to ...


22

There are a number of research methods you can use depending on your scenario. But first, state your research goals... Get the questions out of your head and onto paper and share them with others, get feedback. Start out getting all collaborative right off the bat. Plan the whole process and verify you actually have the time and funds available. ...and ...


21

No. The amount of results per page should depend on: The display size of each result - the smaller the result the more you should show per page e.g. from small to large: thumbnail, one line, multi line, large image, ... The window size - the larger the user's window is (or device's screen if in fullscreen mode) the more results you should show. Showing 10 ...


21

I feel like you have very different questions here. To answer your first question: is some research in regards to how font-weight affects readability? Yes, there is. First you have to understand that type/fonts are judged by their "readability" (how easily can words, sentences, and paragraphs be read by an average reader) and their "legibility" (how ...


20

Jakob Nielsen has long argued against opening links in new windows (#2), for many years (#2), and in multiple ways (#9), though there are are exceptions. He has the explicit research to back up these assertions, though a typical report costs $50 to $500 dollars to get the hard proof.


20

Pop-ups are great. They're usually called modal dialogs because a user cannot do anything but complete the task in the popup. This is their primary functionality and they're better and clearer at that than most similar solutions. In OSX you also have what they call Sheets, but they're a lot less clear about the fact that you need to finish them before you ...


20

When it comes to multicultural design Geert Hofstede's studies on cultural dimensions is a must read. Germans score high on uncertainty avoidance, which could lead to them to read everything and to be absolutely sure about everything before they start. From The Hofstede Centre: Germany is among the uncertainty avoidant countries (65); the score is on ...


17

"...how related are viewport sizes to screen resolution?" This is an interesting question. This answer is probably a good starting point to get the information you're looking for. I don't have any empirical data to support this, but I imagine that viewport size and screen resolution diverge as screen resolution increases. And there's probably a distinct ...


16

There's also the accessibility issue to consider. If a link opens in a new window, it breaks the "Back" button, which is problem enough for a sighted user, but for a user with visual disabilities who browses with a screen reader, it makes things even worse. These users will have their "Back" button disabled without having any visual clues to alert them, and ...


16

I don't see the need for any new studies in this area. The issue is that people usually take the results out of context. You can't comparing using a mouse to learning a keyboard command and then using it. Apples and oranges. Let me summarise what we know. If you don't know the keyboard command, it is usually faster to use the mouse as it has a lower ...


15

The basic idea with showing an error message is to let the user know that something went wrong and his actions may not have resulted in a desired way. So, if the error is something that doesn't affect the users perception of the program - don't show it, but keep it in an error log (for example, the function took 50% longer to execute due to some errors, ...


15

Jakob Nilsen about "Return to Top" Links: Yes, "return to top" can be avoided, because the exact same functionality is provided by simply dragging the scrollbar to the top of the page. It's almost always better to rely on a single, generic interaction technique so that users don't have to ponder the choice between two alternate interaction ...


15

Yes there is quite a lot of research on mood, perception, and bias related to color. The terms you are looking for are color theory and color psychology. Doing a search on these terms will yield the body of research. The research paper Effects of Color on Emotions should provide a decent overview as well as a good set of references if you need to dig ...


12

In Designing Gestural Interfaces, Dan Saffer touches (!) the subject of Fitts' Law in relation to touchscreens (specifically pp. 40-2.) Saffer argues that the law holds true for gestural interfaces; minimize reaching across the interface and making sure that targets are appropriately sized to accommodate the "cursor" (i.e., the finger.) However, he also ...


12

One situation of gameification that had poor results was Google Image Labeler. The premise was simple: in an effort to improve the quality of results from Google Image Search, two players were randomly paired and then shown an image. They had a time limit to create tags for the image and would score points if they had matching tags. The rationale was that by ...


12

I love this question, and I love that you asked it. Points given. I also think it's fundamentally misunderstanding how we approach to adaptive/responsive design - which is really not surprising since we're on a UX board and not a product design board. UX designers, almost by definition, aren't front end engineers. Because there's a bounty on this, I'm ...


12

It's a good combination of skills! UX + coder is an extremely desireable profile here in San Francisco. There a number of reasons for this: Modern app development is a lot less siloed than it used to be, with small sprint and scrum teams operating cross functionally and following the life cycle of a product from conception through design and ...


12

A lot of time and attention has been put into this topic. I've only included the first five articles/studies I came across in my searching. These should provide an adequate starting point for more searching on your part. The most general statement that can be derived from just these articles and studies is: While some small percentage of users will always ...


11

There's a few studies that show sub-conscious reactions to the aesthetics of a page are made within 50ms, and that these reactions then impinge on the user's sense of usability, satisfaction, and the credibility of the site. Attention web designers: You have 50 milliseconds to make a good first impression! (PDF), Lindgaard G., Fernandes G. J., Dudek C. &...


11

I believe that the ultimate answer to your question is a simple "No formal studies have been done," but that's fairly boring. After digging around a bit, the one explanation I came to a couple times was that Atari had a decent number of controllers (along with systems like ColecoVision, Intellivision, and Vectrex) where the buttons were simply numbered 1-N. ...


11

I've come across the same question a while ago and my company relayed on my opinion to solve the same problem, but I wasn't able to find hard data to use as a starting point. However, I found a paper by Raluca Budiu and Jakob Nielsen from the University of Cincinnati (http://uc.edu) about Usability of Mobile Websites. The page 79 mentions very briefly a ...


11

What mouse acceleration essentially does is applies a sort of logarithmic scale to the distance moved per milisecond based on the speed you are moving at. The general concept is that when you are moving the mouse faster, you are trying to move it to a point further away, so acceleration scaled the distance the pointer will move to be even more than you ...


11

The simple fact is that a popup draws a user's attention away from the page and makes them pay attention to the popup. If the content of the popup isn't necessary or more important than the page content, then it shouldn't be there. If it is more important, then it should. So without any clear information about whether the popups are critical or not, we ...


10

Don't. Don't use zebra stripes. Let me quote Edward Tufte: Again, this is a solved problem, with examples in Envisioning Information, chapter 3. Strips are merely bureaucratic or designer chartjunk; good typography can always organize a table, no stripes needed. -- Edward Tufte https://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0001IV If ...


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