Having looked at the vocabulary used in the Closing the Gap 2013 preconference sessions, it’s time to cast a lexical eye on the over 200 regular presentations that took place over two-and-a-half days. For most attendees, these are the “bread and butter” of the conference and choosing which to attend is a skill in of itself. It’s not uncommon  to have over ten sessions run concurrently, which means you’re only getting to attend a tenth of the conference!
So let’s take a look at the vocabulary used in the titles to all theses presentations to get a flavor of the topics on offer.
Conference Presentations: Titles
The total number of different words used in the session titles was 629 after adjusting for the top 50 words used in English . As a minor deviation, kudos to all who used the word use correctly instead of the irritatingly misused utilize. Only one titled included utilizes – and it was used incorrectly; the rest got it right! For those who are unsure about use versus utilize, the simple rule is to use use and forget about utilize. The less simple rule is to remember that utilize means “to use something in a way in which it was never intended.” So, you use a pencil for drawing while you utilize it for removing wax from your ear; you use an iPad to run an application while you utilize it as a chopping board for vegetables; and you use a hammer to pound nails but utilize it to remove teeth. Diversion over.
Top 20 Most Frequent Words in Titles
No prizes for guessing that the hot topic is using iPad technology in AAC. Your best bet for a 10-word title for next year’s conference is;
How your students use/access iPad AAC apps as assistive technology
This includes the top 10 of those top 20 words so your chances of getting accepted are high.
Conference Presentations: Content Words
The total word count for the session descriptions text is 2,532 different words (excluding the Stop List), which is a sizable number to play with. And when I say “different words,” I mean that I am basically counting any text string that is different from another as a “word.” So I count use, uses, used, and using as four words, and iPad and iPads as two. A more structured analysis would take such groups and count them as one “item” – or what we call a LEMMA. We’d then have a lemma of <USE> to represent all the different forms of use, which lets us treat use/used/uses/using as one “word” that changes its form depending on the environment in which it is sitting 
A 2,3oo-word graphic would be rather large so I opted to illustrate the top 50 most frequently used words. As you can see, the top words seem to be the same as those in the titles, which suggests that on balance, presenters have done a good job overall in summarizing their presentation contents when creating their titles – something that is actually the strategy you should use.
Keywords in Content
Finally, let’s take a look at the keywords in the session content descriptions. Remember, the keywords are those that appear in a piece of text with a frequency much higher than you would expect in relation to the norm.
Top of our list here are apps with the iPad coming in at three. Fortunately this fetish for technology is tempered by the inclusion in our top 20 of words like strategies, learn, how, and skills, all critical parts of developing success in AAC that are extra to the machinery. It’s good to think that folks are remembering that how we teach the use of tools is far, far more important than obsessing over the tools themselves.
Coming next… The Dudes Dissect Closing the Gap: Day 3 – Of Content and Commerce. In which the Dudes look at the marketing blurbs of the Closing the Gap exhibitors to discover what the “hot button” words intended to make you want to buy!
 WordPress’s spell and grammar checker flagged the phrase “it’s not uncommon” as a double negative and told me that I should change it because, “Two negatives in a sentence cancel each other out. Sadly, this fact is not always obvious to your reader. Try rewriting your sentence to emphasize the positive.” Well, although I generally agree that you shouldn’t use no double negatives, the phrase “not uncommon” felt to me to be perfectly OK and not at all unusual. I therefore took a look at the Corpus of Contemporary American English and found that “it’s not uncommon” occurs 313 times while “it’s common” scores 392. This is as near to 50/50 as you get so I suggest to the nice people at WordPress that “it’s not uncommon” is actually quite common and thus quite acceptable – despite it being a technical double negative.
 For the curious among you, here are the contents of the Stop List I have been using, which is based on the top 50 most frequently used words in the British National Corpus (BNC): THE, OF, AND, TO, A, IN, THAT, IS, IT, FOR, WAS, ON, I, WITH, AS, BE, HE, YOU, AT, BY, ARE, THIS, HAVE, BUT, NOT, FROM, HAD, HIS, THEY, OR, WHICH, AN, SHE, WERE, HER, ONE, WE, THERE, ALL, BEEN, THEIR, IF, HAS, WILL, SO, NO, WOULD, WHAT, UP, CAN. This is pretty much the same as the top 50 for the Corpus of Contemporary American English, except that the latter includes the words about, do, and said instead of the BNC’s one, so, and their. Statistically, this isn’t significant so I suggest you don’t go losing any sleep over it.
 When you create and use lemmas, you also have to take into account that words can have multiple meanings and cross boundaries. In the example of use/used/uses/using, clearly we’re talking about a verb. But when we talk about a user and several users, we are now talking about nouns. So, we don’t have one lemma <USE> for use/used/user/users/uses/using but two lemmas <use(v)> and <use(n)> to mark this difference. It gets even more complicated when you have strings such as lights, which can be a verb in “He lights candles at Christmas” but a noun in “He turns on the lights when it’s dark.” When you do a corpus analysis of text strings, these sort of things are a bugger!