Word Prediction—What's Good Enough?

So, you've decided that word prediction is an effective way to bridge the gap between thoughts and written expression. Now, how do you decide on a word prediction program? What are the main differences in word prediction programs? And further, what is good prediction worth?

Would you ever compromise the quality of medical attention you seek for your family? Would you buy an car that tested "Poor" in consumer safety reports? What about air travel — would you be comfortable traveling in an obviously unsafe airplane? Reading and writing skills are just as critical and we need to consider them as such. Children with learning difficulties only open the window of effort on occasion — when that window opens we must be there with the best tools to ensure that they have a successful experience. We must look at word prediction with critical eyes if we are to offer the best possible opportunity for success.

Over the years we received hundreds of questions about word prediction relating to grammar, topical vocabulary, phonetic spelling and the types of prediction available. We understand there is some confusion about functionality and supports of similarly named features.

History of Co:Writer's Word Prediction

Co:Writer was produced and is continually updated in collaboration with Paul Schwejda and Judy McDonald, who are true pioneers and have been perfecting word prediction for over 20 years. They began their investigation into word prediction back in the late 70's. In the early 80's they produced "Predict It." but memory on those old Apple II computers caused some limitations. When the Macintosh came to market, Co:Writer® was born. The Macintosh presented the opportunity to develop word prediction with many enhanced features. Since Co:Writer was released in 1992, and technological advances have continued to be made, they have remained singularly devoted to the innovation, refinement and perfection of Co:Writer's prediction and it's ability to support struggling writers.

Three Types of Word Prediction

Word Completion
You'll find this in applications like MS Word and Excel. If you begin to type, for example, the date "j-a-n-u," the application predicts January xx, xxxx (the current date).

Bigram/Trigram Prediction (patterns)
This type of prediction utilises two and three word patterns, and the frequency in which those two or three words appear together. There are 3 key issues with regard to this type of word prediction:

Linguistic Word Prediction
The type of prediction Co:Writer uses is called "Linguistic Word Prediction." With Linguistic Word Prediction, Co:Writer knows the grammatical value of each word in its dictionaries. When Co:Writer learns new words collected from articles or learner writing, it automatically assign grammar to them. With grammar-based intelligence, Co:Writer can accurately predict words within the framework of valid sentence structures. It also gives flexibility to the words it learns by automatically predicting in multiple tenses and usages.

Dictionary Size
Dictionary size has been somewhat confusing to customers when comparing word prediction programs. One would assume that a dictionary that contains 100,000 words contains more prediction choices than a dictionary like Co:Writer's largest option, which offers only 40,000 words. False. Because Co:Writer SE uses linguistic prediction, its dictionaries often utilise root words. Grammar-smart Co:Writer understands that words can be used in different capacities, as a noun, as a verb and as an adjective, therein eliminating the necessity of carrying separate entries of the word in the dictionary. In addition to reducing dictionary size, linguistic prediction sharpens word usage, providing superior prediction as students begin to increase productivity and write more descriptive sentences. In addition to the hundreds of thousands of elementary, middle school, and high school students, there are a number of college/university-level students and even a few doctoral candidates using Co:Writer.

Try This
If you have access to word prediction alternatives you might try the following sentence patterns as a comparative test.
  • Dogs are furry. (noun, verb, adj.) (When you typed d-o, did you get plural noun choices? You did using Co:Writer SE!)
  • Three very mangy dogs ran down the street. (adj., adv., adj., noun, verb…etc.)
    (After typing three, very, mangy, you get plural noun choices, then you get plural verb tenses. This is the type of prediction you will not get with pattern prediction products.) All word prediction should be able to get simple sentences like, "I am happy." or, "The fish is swimming." with minimal keystrokes. If a learner has to type fis for "fish", the prediction is not good enough. As students learn to write richer sentences, Co:Writer SE goes beyond 'simple' by utilising advanced linguistic prediction. It provides the critical modeling of word forms, subject-verb agreement and pronoun and article use.

Critical Features and Performance Standards

Co:Writer
Grammar Usage and Dictionaries
There are five main dictionaries to choose from within Co:Writer SE. A main dictionary is selected based on the writer's ability level and provides appropriately leveled word choices that help the learner build good first sentences. In addition to utilising words from the main dictionaries, Co:Writer SE automatically collects and assigns grammar to most new and learned words too. For example, if a student is using the Intermediate Dictionary (12K) and wants to write about Mars and the rover "Spirit", which is not found in the main dictionary, Co:Writer will automatically collect, assign grammar and, in correct context, predict the proper noun "Spirit" the next time the student types the word. Typically, new or collected words will only consist of proper nouns and acronyms. When using Co:Writer SE, no less than three dictionaries are always running simultaneously-a main dictionary, a collected words dictionary and the writer's personal dictionary. Co:Writer SE can refine predicted words even further by applying…

Topic Dictionaries
Topic Dictionaries — powerful vocabulary tools-are lists of words grouped together by a specific topic or content area. Rather than labouring over how to spell Pterodactyl or Tyrannosaurus, students can focus on writing for meaning and retelling their knowledge. Applying a Topic Dictionary increases students' efficiency by getting to content-specific words in just one or two keystrokes! Over 140 Topic Dictionaries are included in Co:Writer SE and new Topic Dictionaries are posted to the Don Johnston web site each month. Additional Topic Dictionaries can be made in less than two minutes using web sites, e-books, textbooks and worksheets. Anything that can be saved as a text file can be made into a Topic Dictionary!

Phonetic Spelling
Many companies that produce word prediction tout phonetic spelling. Unfortunately, some of the most widely-used prediction software only contain a few common phonetic patterns. This leaves you with the job of assessing, and ultimately inputting, the rest-again, not good enough. Co:Writer's FlexSpell™ provides every conceivable letter-pattern students will try in an attempt to spell-out words. A great deal of assessment, using writing samples of students with developmental spelling difficulties, has been done to provide scaffolding for writers who struggle more severely. FlexSpell can be adjusted to work after just one letter is typed, for example if a student types the letter "u" Co:Writer SE will predict the word "you", or FlexSpell can be set to provide phonetic spellings only after two or three letters have been typed. FlexSpell was designed to remove the mechanical barriers that keep many students from expressing themselves and their knowledge through writing.

Try This
The blk jragon flu ovr the gra lfnt. (The black dragon flew over the gray elephant.) R u hpy to ce me? (Are you happy to see me?—only 6 keystrokes!) I no hw to nsr the fone. (I know how to answer the phone—less than 8 keystrokes) **Note—You will not need to type in all of the letters given above, but they are included as a point of reference. Try these types of spellings or, better yet, use your students' writing samples to compare the prediction for yourself!

eWord Bank
Available only in Co:Writer SE, the eWord Bank automatically presents a bank of topic-specific words when a Topic Dictionary is selected. This is especially useful for students who stare at the blank screen — unable to translate their thoughts into words. Quickly scanning through the topic words helps students mind mapping and formulate their thoughts. After brainstorming, the eWord Bank helps build core vocabulary by turning your students' receptive vocabulary (the words they "know" but don't necessarily use in their writing) into productive vocabulary used in writing.

Set Up Time and Customisation
Most word prediction programs are not plug and go. However, with Co:Writer SE's new setup wizard, students can set themselves up in less than a minute. With FlexSpell and the new Easy Create Topic Dictionary functionality students can write on the topics they choose with a simple cut and paste from any webpage! The learner now drives much of the time intensive work most teachers struggled with. For the savvy teacher who wants to further tailor the settings, there are a number of options and preferences that can fine-tuned. The Getting Started section of Co:Writer's manual is a step-by-step tutorial that can be used as a quick reference or as a training resource. Additionally, product training, customer and technical support are readily available

Integration

Co:Writer SE works with any application that accepts text such as:

Other Don Johnston programs: In SOLO, whenever teachers create an Assignment with eText in Read:OutLoud, a Topic Dictionary is automatically created and attached to the assignment. When students open this assignment and launch Co:Writer, the Topic Dictionary is activated as they write. Additionally, content-filled products like Start-to-Finish®, WordMaker™ and Simon S.I.O.™ include Topic Dictionaries that are installed automatically for making the reading-writing and word study-writing connection.

CoWriter® SmartApplet™ for Alphasmart® 3000 and Neo For students who need portable prediction, Co:Writer is the only word prediction developed for the AlphaSmart 3000 and Neo in collaboration with AlphaSmart® Incorporated.

Additionally, both AlphaSmart and Don Johnston are committed to the continued support and innovation of portable Co:Writer.

In the end, it's your decision — what do you think is 'good enough'?





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