Developmental Disorders of Language and Literacy

How to choose a treatment

Professor Max Coltheart, Macquarie Centre for Cognitive Science, Macquarie University

When people have learned to read, they have not learned just a single skill. Instead, they have learned a number of skills, which include:

• the ability to recognise letters
• the ability to recognise single words as wholes, quickly and automatically  
• knowledge of the relationships between letters and their sounds
• the ability to go from a printed word to its meaning

No one is a good reader unless they are good at all four of these things. So a child learning to read needs to learn all four of these skills. If any one of these four is difficult for the child to learn, then that child will have difficulty in learning to read.

What this means is that not all children who are having difficulty learning to read will be having the same kind of difficulty. One child's problem may be particularly with the visual aspects of reading. Another child may be having special difficulties in learning the relationships between letters and their sounds. A third child may have mastered these relationships but be struggling to develop the ability to recognise single words as wholes, quickly and automatically. And the problem for yet another child may be in learning how to get to the meanings of printed words. And of course there will be children who are having difficulties with learning two or even more of these skills.

If this is so, it seems very unlikely that there will be one single method for helping all children with reading difficulties. The method a particular child needs will depend upon which particular reading skill the child is having difficulty learning.

In addition, if learning to read means learning a number of different skills, any classroom method for teaching children to read which focuses on just one of the skills is not going to be very effective. Phonics is very important, but if that is all children are being taught in the classroom, how will they learn to recognise words quickly and automatically without sounding them out? Using flash cards to try to teach children to recognise whole words rapidly is important too, but if that is all children are being taught in the classroom, how will they learn about the relationships between letters and sounds? So both of these things need to be taught.

The typical stages of learning to read.

Research on reading has discovered a great deal about the stages children typically go through from kindergarten or Grade One up to when they are perhaps 10 years old. In schools where reading is being taught well, there are three of these stages through which most children pass, as follows.

At the very beginning, in kindergarten or Grade One, children are often taught to read just a rather small number of words, their 'reading words'. Even though such children can do very little reading, studying how they read can be very interesting. Here is the kind of thing one can observe.

You show the child the word rhinoceros , and say " Can you read that?"
The child says "yes".
"What word is it?" you say.
The child says "television".
“Why is it television?” you say.
“Because it's the long one” says the child.

Another example: You show the child the word yellow , and say " Can you read that?"
The child says "yes".
"What word is it?" you say.
The child says balloon".
"Why is it balloon?" you say.
"Because it's got two sticks" says the child, referring to the two letters l in the middle of the word.                                                                                                                                                                                                                                      

You can see what's happening here. There is only a small number of words that this child is expected to be able to read aloud. These words might even be pasted up on the walls of the classroom. Only one of these words is a long one - it is the word television . So the child has learned to recognise this word not in terms of its letters but just because it is long. And the word yellow is not recognised in terms of its letters either but just because it has two vertical lines in the middle of it.

This is hardly a permanent solution to how to read. Reading all long words as "television" and all words with two lls in them as "yellow" is not going to get you very far. But it is a good start. Children at this first stage of learning to read have understood that words can be written down, and they aren't just for speaking.

Once children get that idea, then they can move on to the next stage.

The second stage depends upon a fact which is probably the most important fact to understand about learning to read. It is this. By the time they are in Grade 2, children will have learned to understand in speech at least 10,000 words. But the number of words they can recognise in print will still be very small - perhaps only a hundred or so. That means that it will happen over and over again that children at this age will come across printed words which they have never seen before, but which they have often heard, and can understand when they are heard. If only there were some way in which children could turn the printed words into speech – sound them out - then that would tell them what the words were. They could make use of the fact that they can recognise very many words in speech to help them recognise printed words they've never seen before. It would be as if the children are teaching themselves to read. But for this to happen, the children must learn how to turn unfamiliar printed words into familiar spoken words - and that can only be done if the children learn the rules relating letters to their sounds. This is why phonics is so important. So the second stage is learning about phonics - learning how to pronounce a word even though you've never seen it before, so you can say it to yourself and recognise it that way. This isn't easy and very few children would be capable of learning it by themselves; they have to be taught it.

A child who has moved from the first stage to the second stage will no longer make the mistake of reading rhinoceros as "television". That child will know that this word can't be "television" because it begins with an "r" sound and “television” doesn't.

This second stage, the sounding out stage, is very important because it allows the child to use a secret weapon - the child's extensive knowledge of spoken words - to learn about printed word. But even this stage is not enough. The child can't stop here, for several reasons. Firstly, this is a very slow way to read; sounding out is slow and takes a lot of effort. It doesn't allow reading to be quick and automatic, which is what skilled reading has to be. Secondly, in English many words disobey the rules relating letters to sounds - words like yacht or aunt , for example - and these words cannot be correctly sounded out by the rules, which means this way of trying to understand them won't work. So a child who's going to be a skilled reader has to move on from this second stage, the sounding out stage, to the final stage.

In this third stage, the child builds up a large sight vocabulary. This means that the number of printed words which the child can recognise immediately, without having to sound them up first, gets larger and larger through practice. Eventually very few words cannot be recognised very quickly in this way. When the sight vocabulary has grown big enough, the child has become a skilled reader.

Different kinds of reading difficulties

Some children with reading difficulties have problems at the second stage: they find it very hard indeed to learn phonics - that is, to learn what the rules are about which sounds go with which letters. So they are unable to use the secret weapon - they can't take advantage of the fact that they know many words in speech, because they can't translate unfamiliar printed words to speech. The technical term for this kind of difficulty in learning to read is "phonological dyslexia". Children like this are very bad at reading aloud words they haven't seen before. Being bad at reading aloud nonsense words like delk or pite is the sign of not having learned phonics.

Other children with reading difficulties have problems at the third stage - they may have mastered the second stage, but then can't move on to the third. So they remain as sounding-out readers, with all the problems that this brings: they are very slow, reading is hard work, and they will have special difficulties with the words which disobey the letter sound rules. The technical term for this kind of difficulty in learning to read is "surface dyslexia". Children like this have special difficulties in reading aloud words that disobey the rules. They will read yacht as "yatched", or aunt as "ornt", and not recognise or understand these words when they see them, even though they may be very good at reading aloud nonsense words such as delk or pite.

These two kinds of difficulties in learning to read have nothing to do with the children's eyesight or how they see. Both kinds of child can have perfectly normal vision. But there does seem to be a third kind of reading difficulty that really does have something to do with seeing. This third kind of child will often complain that it is uncomfortable to try to read, that words seem to move around on the page, that the printed page is too glaring, or that they get headaches from reading.

How do I know which kind of difficulty in learning to read my child has?

At the end of this document is a little reading test that you can use to get some idea of what kind of reading difficulty your child might have. This test consists of 30 nonsense words and 30 real words which disobey the spelling-to-sound rules of English (these are called “irregular words”). A child's knowledge of these rules can be tested by seeing how good he or she is at reading the nonsense words (because the only way to get these right is to use the rules correctly). A child's ability to recognize whole words can be tested by seeing how many irregular words he or she can read aloud correctly.

IRREGULAR WORDS    NONWORDS

good

 

norf

friend

rint

give

 

delk

eye

 

aspy

head

 

baft

wolf

 

spatch

work

 

drick

pretty

 

hest

shoe

 

brinth

come

 

framp

blood

 

gop

island

 

bick

break

 

peef

bowl

 

grenty

sure

 

stendle

iron

 

tapple

soul

 

farl

ceiling

 

pite

lose

 

seldent

choir

 

borp

cough

 

brennet

yacht

 

gurve

routine

 

crat

brooch

 

boril

tomb

 

bleaner

bouquet

 

ganten

gauge

 

trope

meringue

 

pofe

colonel

 

doash

pint

 

peng

To administer this test: print each of the 60 items legibly on an index card in lower case. Each time you use this deck of 60 cards, shuffle the cards into a random order. Tell the child that some of the items will be real words and some will be made-up words that he or she will never have seen before. Children have to try to read each item aloud correctly, taking as long as they like.

What counts as normal performance with these materials depends upon the child's age, since normally children get better and better at reading as they get older. The minimum number of items a child should get right as a function of age is shown in this table:

Age

Nonsense words

Irregular words

7

6

7

8

8

12

9

12

13

10

18

18

11

18

19

12

22

20

If a child correctly reads considerably fewer nonsense words than they should for their age as indicated in this table, then that suggests that they don't know enough about letter-sound rules i.e. phonics. If a child correctly reads considerably fewer irregular words than they should for their age as indicated in this table, then that suggests that they don't have a big enough sight vocabulary i.e. they can't quickly and automatically recognize as many words as they should be able to. Some children may have both of these problems: they will score below their age level on both the nonsense words and the irregular words.

And if a child complains that reading is uncomfortable, that the words move around or shimmer on the page, or that reading gives them a headache, that suggests a third kind of difficulty: that there is a visual difficulty affecting their reading.

What can I do about this?

If your child has any problem in knowledge about letter-sound rules, the child needs phonics teaching. There are a number of good teaching programmes for phonics available. For very young children I recommend the Jolly Phonics program because it has been scientifically evaluated and has been shown to be effective in improving children's phonics knowledge. The Jolly Phonics web site is at http://www.jollylearning.co.uk

Also worth considering is THRASS, which is used quite a lot in Australia . Information for parents about THRASS is at http://www.thrass.com.au/.

Ideally primary schools should be using programs like these but if they are not it is quite possible for parents to use them (not cheap, though).

If your child has built up a good knowledge of phonics but seems to have trouble moving on from there - seems to have a problem in whole-word recognition (i.e. scores well below the age level in reading aloud the irregular words), then the focus needs to be in practicing the ability to recognise what a word is quickly, without having to do much sounding out. The THRASS materials can help here.

And if your child instead has some kind of visual problem with reading ? The child might say that reading is uncomfortable or produces headaches or tiredness, or the printed page looks peculiar, with words simmering or moving around on ithe page? Some people believe that you should consider consulting someone who can provide transparent colour overlays or spectacle lenses (sometimes known as Irlen lenses) for viewing the printed page. Evidence suggesting that this actually does help children with this particular type of reading difficulty is beginning to accumulate.

What to beware of.

Around the world there are many organizations claiming to provide effective treatment programmes for children who are having difficulty learning to read. Many of these programmes are very expensive. Most of them are offering treatments which have never had scientific evaluations of them published in the scientific literature. It is difficult for parents without the relevant scientific background to decide whether any such programme is likely to be effective or not. But it can be done. If you are speaking to someone who is offering any such programme, here are the questions to ask.

Firstly, ask this person whether they agree that there are several different kinds of difficulties in learning to read, rather than just one single cause. If they don't agree, then forget about them. As I have described above, there definitely are different kinds.

If this person agrees that there are different kinds, ask them whether their programme uses exactly the same method for all children regardless of the kind of difficulty in learning to read a child has. If the answer is Yes, you need to consider how likely it is that the same method will help regardless of what kind of problem in reading the child has. If the answer is No, ask how a decision is made as to whether the programme is or isn't suitable for a particular child.

Finally, ask whether there have been any scientific studies which have tested whether the programme actually does improve children's reading, and in which scientific journal were these results published. If there have been no such studies, is it appropriate that the programme is being marketed when its effectiveness has not been proven?

A discussion like this can help you make informed decisions.

I am happy to discuss any of the material in this document, preferably by email: my email address is max@maccs.mq.edu.au

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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