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iPhone Chart   (Source: Image Via User Centric)

iPhone Time Chart  (Source: Image Via User Centric)
Study shows iPhone on-screen keypad is twice as slow for texting as QWERTY keypad phones

One of the largest complaints posed by new iPhone users is the efficiency of the onscreen keyboard. According to a new study potential iPhone users can now at least quantify that complaint.

User Centric, a usability study group, unveiled the results of its iPhone study today conducted with 20 participants aimed at determining if the iPhone’s touch sensitive onscreen keyboard was as effective as traditional QWERTY keyboard or multitap messaging phones.

The study participants had never used an iPhone and were considered to be heavy text message senders defined as sending at least 15 text messages per week. Out of the twenty participants, ten owned phones with QWERTY keypads and ten owned phones with numeric keypads that used multitap to get the correct characters.

User Centric brought participants in for one-on-one time with a moderator for each of the tests. The test consisted of sending 12 standard text messages created for use in the study with each of the messages being between 104 and 106 characters long. Six of the messages contained instances of proper capitalization, while six had no capitalization and used some abbreviations.

Since none of the participants were iPhone owners, they were each given one minute to get familiar with the touch keypad. This study intended to show the decrease in productivity a new iPhone owner would see if they went from their current phone to the iPhone.

The study concluded that participants that normally used a phone with a QWERTY keypad took almost twice as long to enter the same text messages with the iPhone as they did with their normal phone. Participants who normally used a numeric multitap phone took nearly the same length of time to enter text messages on the iPhone.

“For QWERTY users, texting was fast and accurate. But when they switched to the iPhone, they were frustrated with the touch sensitive keyboard," said Jen Allen, Usability Specialist, User Centric.

Also noted in the study is the fact that many participants hit the wrong keys on the iPhone’s onscreen keyboard and the errors were typically corrected by using the backspace key to delete characters one at a time because of difficulty getting the cursor inserted correctly in the middle of text. Only seven study participants figured out how to use the iPhone’s corrective text feature on their own. Improvement with accuracy while using the iPhone after 30 minutes was noted, but the difference in speed between QWERTY phones and the iPhone persisted.

I have used the iPhone for about as long as the study participants while fiddling with a friends iPhone and using it at the Apple store. I fully agree with the inaccuracy of the keyboard. My fingers were too large and the keys were to close together for me to hit them accurately at any speed. I wished more than once for a stylus to hit the keys with.

"It's important to consider the changes a person has to make when they switch to the iPhone," said Gavin Lew, Managing Director at User Centric. "It should be easy for people to do common tasks, such as text messaging, using the iPhone's less traditional touch interface."

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AutoComplete - Blows
By StraightPipe on 8/17/2007 4:37:49 AM , Rating: 2
I had some problems with it. First of all, it would not type the word 'metallica' it seemed to think I ment another word; and there was no way to type a space without accepting the autocomplete. It was quite frustrating.

(Not to mention, I have fat thumbs)

The funniest (and most frustrating) was when I used Google Maps to zoom into my home town. I used two fingers in a spreading gesture to zoom in repeatedly, but shortly after I hit the state level, I slingshot off the map, and ended up in Mississippi. It would usually send me off a state or two. I'd have to zoom out, recenter and try again, and again, and again.

It took 10 minutes to get to my house, without searching (thus avoiding the shvtty keyboard, that sucks at predicting addresses or email addresses).

After 2 weeks, I sold it.

RE: AutoComplete - Blows
By psychobriggsy on 8/17/2007 12:49:13 PM , Rating: 3
> there was no way to type a space without accepting the autocomplete.

You tap on the suggested word which has a red X by it to cancel the suggestion.

After that the word you typed is added to the dictionary.

I don't even have an iPhone and I know that. It's in Apple's videos on their website, and has been since before the launch, and the UI looks rather obvious too.

Now whether having to stretch to cancel the suggestion is the fastest thing to do is another issue entirely, and one that will hopefully be fixed as feedback returns to apple over time.

As other people above have said,

(1) the on-screen keyboard needs to work in landscape mode in all applications,

(2) someone needs to make a proper mobile keyboard that plugs into the iPhone's data port and

(3) the study is rather pointless, all it points out is that if you are a seasoned phone typist, moving to the iPhone will result in slower results initially.

A better report would have had the above, PLUS: tests for which is the fastest when everyone in the study has no experience - I would bet that keypad texting and T9 would come out slowest, iPhone second, and micro-keyboards fastest initially. PLUS: 1 month experience tests, to see if people get faster once they are accustomed to the iPhone keyboard.

"Folks that want porn can buy an Android phone." -- Steve Jobs
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