Read the dissertation and I'm sure you'll find answers--don't reinvent the wheel. You should also read up on scientific research methods before concluding that your personal ideas of what makes up a test of your assumptions and opinions are actually good measures of reliability and validity.
Thanks, Matthew----- Original Message ----- From: "Chris Meredith" <tallin32@xxxxxxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx> Sent: Thursday, May 08, 2008 12:18 AM Subject: RE: Dynamic active content
SIX PER CENT!?!??!? ... Is that an average? What data points were used to come to thisconclusion? How many blind programmers fell above or below that 6% margin,and how far in either direction (well, OK, I guess there's really not much "down" left to go)? What was your sample size? I'm actually keen to run the same tests against my team and see if I'm actually at 6% productivity when compared to them. Were factors taken into account such as, say, the confidence of the individual programmers? "Feel good reasons" aside, I've seen an individual's attitude be far more of a blocking issue than an individual's eyesight. Were usage patterns graphed over time? For instance, I was hideously slow at managing our internal "Career Model" portal until I figured out the layout. How about individual user frustration levels? In calculating the average time that a blind user, say, takes to purchase an item on Amazon or throw together a unit test in Visual C#, should you not adjust for user frustration (after all, that's not the blind as a whole, but a single instance)? Do you re-check every line of code you write on a Braille display or have key echo turned on? I don't. If you do, then there'sanother variable one should adjust for. Do you have All Punctuation turned on when you're skimming code? How about speech rate? Was an average takenfor that?One should adjust for different integrated development environments as well. I can use Visual Studio with what would appear to be a fairly high level of ease, but drop me into, say, Delphi or C++ Builder and I'm ... you'll pardon the analogy ... flying blind. I would be curious to see the data from thisresearch grouped by IDE, and possibly also by task. Was a standard assessment of skill for the participants in this researchtaken? Were they taking a sampling of blind people at what in my workplacewould be termed a certain "stock level" or range of "stock levels" andcomparing them against sighted people at that same level, or did they simplytake some blind programmers and have them run the gauntlet against some sighted programmers? I've seen some shoddy research done in trying tounderstand the "challenges of blindness" (I was thrown a questionnaire onceby a university disability resource center that may have been the Anxiety Scale for the Blind or something along those lines and found myself frequently looking for a "not applicable"). I hate to sound as though I am attacking what I'm absolutely certain was a well-thought-out statement, in which far more statistical research was performed than I would have either the time or the inclination to do, but looking at that six per cent productivity figure, it would seem thatcompanies that hire blind programmers only keep them on because they perhapsdon't know better initially and, once they find out what a disappointment they are, can't fire them because the only reason they can come up with isthat "it's something to do with blindness", which no company wants on their record. Now, I haven't had *MY* first annual performance review as yet, but it would certainly seem that such a delta in productivity between myself and others on my team would have been spotted by now. Of course, to sign off onthat as a blanket statement that "blind programmers are as productive as their sighted counterparts in all instances" is logic just as flawed as tosay that for all blind programmers in all instances, productivity will be ator near 6% of what it would be for a sighted person taken from the same level of skill--or, as would seem to be implied by your rather touching scenario involving the description of a scene from a window, that "anysighted person knows more about the world in general than any blind person".My sighted wife, for instance, could not find Union Station in Chicago (a city which we had never been to), which I was able to find in five minutes with a 1.0 version of one of the GPS packages out there for the blind.Again, one should watch statements meant to imply that X is true for all Y, because it is frequently easy to find an instance of Y for which X is false. Edited to add before sending: Because testing things is what I do, I decidedto run the same test that you had mentioned earlier with web navigation, that being ordering something on amazon.com. Now, because a few variableswere missing (what was being ordered for one, and how long it would take youvs. your wife to navigate the site for another (you provided half of that information)), I had to improvise. The test parameters I used were: * Find a book, specifically "Confessor" by Terry Goodkind, solely on the basis that it was the first thing that came to mind. * Add it to cart. * Confirm shipping.* For GOD'S sake don't charge my card, because if I wanted that book I coulddownload it from BookShare. Starting at 11:55 PM local time, I was able to find the book, add it to my cart, log in, take a second to confirm my shipping address (I couldn'tremember if I'd ordered something since my most recent move), and get to the part of the adventure where I select my card for billing. Checking the time at that point, it was 12:00. Now, of course, I have NO idea of the validity of this test as far as comparing my poor, disadvantaged, blind self to yourfully non-disadvantaged sighted wife's navigational skills, because I have no clue what it was you wanted to get her to buy for you, but surely this raises an interesting point, does it not? Again, I'm not looking for a confrontation here by any stretch of the imagination, but I'm eager to seehow the outlook can concurrently be as bleak as you say for all X and not beas bleak as you say for at least two instances of X that I've seen so far. Cheers, C -----Original Message----- From: programmingblind-bounce@xxxxxxxxxxxxx [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Matthew2007 Sent: Wednesday, May 07, 2008 10:57 PM To: programmingblind@xxxxxxxxxxxxx Subject: Re: Dynamic active content All things being equal--in regards to computer knowledge, we're still at a great disadvantage to sighted people when it comes to computing--basic or advanced. I'm a very proficient computer user in respects to my sightedfamily members and friends, but when I had my technician brother in law overa few weeks ago to install my new sound card, there is absolutely no comparison, none at all, he stunned me at the speed he was installing andconfiguring the software. In fact, I purchased a small app that allows me torecord directly into my computer using a microphone. He had never used thislittle known application, and he was able to read all the information theapplication had to offer simply by looking at the start up screen just once.He told me my microphone wasn't being recognized, he told me the balance wasoff, he said my equalizer was off balance, and he told me that I had 3 filesopen. I had no idea any of these things were happening or even conveyed on the screen even though I'd been using the application for a couple ofmonths. This is because all this information was conveyed visually at firstviewing of the screen. I, needing a screen reader, would have had to tab around or use my mouse cursor to try to determine what was open or closed and what the settings were--if in fact my screen reader could even see the various settings on the application. This of course means that the information might have been accessible, but it would have taken me some 10minutes to put all the information together and make the same conclusions hedetermined in a split second viewing of the screen. He was clicking away with the mouse so fast that I told him to stop while I turned jaws off because I didn't want jaws' slow response to crash the computer. Remember,Andreus found in his research that the productivity of blind programmers is only some 6% of sighted programmers. We can argue the facts all we want and come up with feel good excuses as to why we're slower, but the facts are thefacts. Take a listen to the first few minutes of the link posted by ken andsee for yourself. Matthew----- Original Message ----- From: "Jared Wright" <wright.jaredm@xxxxxxxxx>To: <programmingblind@xxxxxxxxxxxxx> Sent: Wednesday, May 07, 2008 10:21 PM Subject: Re: Dynamic active contentI think what you're forgetting is that I'd say on a scale of 1 to 10 the entire world is probably at about a 4 when it comes to the ability to quickly and efficiently acquire information from the internet. I have no real statistical numbers, it just seems a little strange the disadvantage you seem to think we are in. I'm not saying there isn't work to be done, but there're lots of things on the internet (buying items on Amazon being one of them, actually) that I know I can do not at the equivalent speed as a sighted user, but faster in many instances. A lot of times people try to transfer techniques for browsing pages from the sighted world to the blind one, I feel. If more blind people were to be taught, or just stopped to think, how powerful a feature it is it is for your screen reader to run a search on a web page and place the cursor where the search hits in its respective browse buffer for example.. I think you'd see more more blind web users be even more successful on a number of sites. Your Amazonexperiences are very strange to me, as that is one of the sites that I feelwith familiarity I can browse faster than sighted peers. I would agree thatfirst time visits to a website might be more inefficient for us, but Ithink we can more greatly optimize our experience with a given website withincreased familiarity to its content. These are just the pros and cons associated with getting the same information through two distinctly different mediums. Jared Matthew2007 wrote:Ken,Thanks for the information. More confirming information that blind peopleare truly at a great disadvantage when it comes to interacting with the many different types of WebPages on the internet. Had the presenter not specified many of these interface problems I would have never consideredjust how slow computing is for blind individuals. So far, it appears thatfrom a scale of 1 to 10, the average blind web user is probably lingeringin at about a 3 when it comes to quickly accessing information on the web. Just this past week I asked my wife to help me make a purchase on Amazon.com. I was in a hurry and didn't want to have to read through a mess of information. She found and purchased the item I was looking forwithin some 10 minutes. It would have easily taken me over an hour due tothe size of the pages on the web site as well as the amount of extraneousinformation the blind user must wade through as we have to read from top to bottom or search around for various keywords to get at desired information. I've been buying from Amazon and other similar sites on the web for years, so its not me as much as how I must interact with a website even using the most current screen reader. Matthew ----- Original Message ----- From: "Ken Perry" <whistler@xxxxxxxxxxxxx> To: <programmingblind@xxxxxxxxxxxxx> Sent: Wednesday, May 07, 2008 6:03 PM Subject: Dynamic active contentWe have been talking about menus and other dynamic content so I thought it would be important to post the new Web anywhere screen reader that will work on any device that has a web browser and can play music. This is just one video and it should be release this month if it hasn't already been released. http://www.youtube.com/watch?v=SpmB2DLrkTE Ken __________ NOD32 3083 (20080507) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com__________ View the list's information and change your settings at //www.freelists.org/list/programmingblind__________ View the list's information and change your settings at //www.freelists.org/list/programmingblind __________ NOD32 3084 (20080508) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com__________ View the list's information and change your settings at //www.freelists.org/list/programmingblind __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind __________ NOD32 3086 (20080508) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com
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