Take the 2-minute tour ×
User Experience Stack Exchange is a question and answer site for user experience researchers and experts. It's 100% free, no registration required.

If we want a user to perform a certain action, we make it easiest for them to select that option compared to any other available option.

For example, think of a pop-up ad, "Do you want to download/install/sign up?"

mockup

download bmml source – Wireframes created with Balsamiq Mockups

You want the OK button to be more prominent to encourage users to click it. Some designers would make it larger than the other button. Others rely on eye travel, putting it above or to a certain side of the other.

Please note, I am in the US, where eye travel is left to right. Therefore, if you put the button to the left, it will be the first one that a user sees when scanning the available options, making them more likely to agree without noticing the Cancel button. If you were to put the Cancel button first, then users are more likely to realize that it is an available option and opt out.

(I understand there are many reasons to put the OK/Cancel buttons on the left or right, many of which are discussed in OK/Cancel on left/right?. For the purpose of this question, I am referring to reading left-to-right, so I like the point that Cancel/OK is like asking "No or Yes". However, since I am asking about eye movement, Why 'Ok' Buttons in Dialog Boxes Work Best on the Right makes an excellent point that users might read both options before deciding.)

Now, my question is with mobile devices. An overwhelming majority of people are right-handed (I found figures of 70-90%). Assuming that they would use touch screens with their right hand more often, it would be easiest to click the button closest to your right hand so you don't have to reach your finger or move your arm as far.

But this directly contradicts my point about eye travel. Is there a best order to put OK/Cancel buttons when designing for mobile? What about in countries that read right-to-left?

share|improve this question
1  
Another thing to keep in mind is habits and 'socialization' if you will. I clicked dialogs with the 'OK' option on the left for the last 20 years. I admit it's easier to touch (as a right hander, not everybody is one) when it's on the right side. Either way, the bad news is there won't be a standard so you'll always have to check and double-check before you tap/ click and that sucks. –  Ascorbin Mar 8 '13 at 12:49

3 Answers 3

One can assume that 85% of the people are right-handed and holding there smartphone in their right hand navigating with the thumb. But do we know how many uses only one hand to navigate? Or do they use two hands - holding the smartphone in the left hand navigating with the right pointing finger - sometimes, and in other cases only use the left hand because the user is used to holding phones that way? Problem is - with mobile devices - we don't know.

We have to adress all sorts of navigation techniques. Thus the advice is to follow the convention on each platform, or the convention still evolving on the mobile web. There are often cases where some old convention or ideom travels through the evolution on different devices or the creation of new devices. In this case - stick to the overall convention if you can't find a specific convention from your target device/mobile web, and you'll be safe.

share|improve this answer
    
One can assume that 85% of the people are right-handed and holding there smartphone in their right hand navigating with the thumb. Save me a bit of time and point me at the reference for that... –  Roger Attrill Mar 8 '13 at 12:59
    
@RogerAttrill It's supposed to be ironic - but it didn't get through now did it :-/ The whole point of my statement is that we don't know - and thus no reference. –  Benny Skogberg Mar 8 '13 at 13:10
1  
oh yeah - I get it now. I was so distracted by the outrageous nature of the claim that it bypassed my irony detector! –  Roger Attrill Mar 8 '13 at 13:19
    
@RogerAttrill Even on a friday afternoon? Do you have a lot to do today? :) –  Benny Skogberg Mar 8 '13 at 13:21
1  
Good to know you meant it as ironic. I'm righthanded, but don't use that hand to both hold and operate my phone... :-) Sort of hand-contortionist needed for that. –  Marjan Venema Mar 8 '13 at 13:44

Assuming that they would use touch screens with their right hand more often, it would be easiest to click the button closest to your right hand so you don't have to reach your finger or move your arm as far.

I think this is a wrong assumption, I'd suggest the article of Steven Hoober How Do Users Really Hold Mobile Devices?

Seeing there are many different ways of holding devices, personally I would primarily focus on one handed usage if you design for mobile as this gives you the most constraints. If it works for one handed usage it will probably also work for the rest.

share|improve this answer

One important point to consider is what the platform conventions are. If all dialogs put OK on the left and Cancel on the right and your app breaks that convention by switching the buttons you will probably find your users mis-clicking a lot.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.