Friday, 28 June 2013

Font size. Such an easy starting point to reduce barriers to reading. Critical Print Size

Font size.  Such an easy starting point to reduce barriers to reading. Critical Print Size

Yesterday I met the daughter of a friend who I taught with years ago. She always had difficulties in school, which were ‘diagnosed’ as Dyslexia when she went to the local FE College.

No one at school suggested that she may have a barrier to reading that could be reduced or removed.

The conversation which took place went over her experiences as a person growing up with dyslexia and how she was ‘assisted’.

She recounted how her difficulties got worse when she started in secondary school.  The drop in font size was a real problem for her. So much so that at the age of 12 she went to an optician where she was identified as significantly short sighted with an astigmatism in both eyes.

In secondary school, she did not like practical work which involved reading instructions or writing. She was very messy or clumsy if she mixed the practical work with reading and writing. This is a very typical story that I hear from adult dyslexic people.  Where possible she would work in a team and leave the reading and writing to other members of the team…. No problems then.

This did not solve her problem though.  In a way it must have reinforced in her the idea that she just was not really academic. The optician could not fix her problem.   She was still very aware that the reading was really limited by the small font sizes being offered to her, in all the books and print outs.

With smaller fonts the letters seemed to crowd each other, especially the ends of the words, which she would guess at. After a short period of slow reading the letters and lines would start to move, become unstable.

At the FE College, she was referred to an Educational Psychologist, who duly tested her and pronounced her ‘dyslexic’. Unfortunately, she was unable to read the ‘report’ and did not understand the ideas when explained to her.  This is a common experience of dyslexic undergraduates.  It is often as if they do not recognise the report as really being about them.

Back to my friend’s daughter. 
At the college the support staff went through ‘testing for ‘colour’. A range of ‘coloured plastic sheets’ were placed on to text.
Some stabilised the text for a short time, then the movement and crowding would start again. She has a ‘bluish filter’ which sort of helps sometimes.  But a larger font always does!

I am writing this today, after a few weeks without a blog following a spinal problem which has made it difficult to use my computer, because yesterday I received an email from a group of dyslexia specialists which I am a member of which included a link to a particular website.

Now the people who run this website are great people, I have tremendous respect for them. I have tried to engage them in a dialogue, but just get ignored. Perhaps they know something about me that I do not. Let’s consider the website, please look at it as you read this.

The first thing that hits you is the bit of graphics on the home page with the philosophy of the two main people at DNA and amongst others, that well respected ‘honourable /co-opted dyslexic Albert Einstein.




Now this is a good start.  Large font, not a white background.

Then we get into body of the website.

Welcome to DnA, a social enterprise story
designed and led by dyslexic and disabled
 adults working with the sole purpose to
 provide support, strategies, Assistive
 Technology training and shared wellbeing.
The website appears to be defaulted to Arial 10.5 font.  From work with dyslexic undergraduates in the UK the following histogram has been produced showing the ‘optimum font size, needed to stop the dyslexic student’s reading performance being limited by font size.



Ignore the pretty colours but look at the column on the left. 

There were 3 students who had a critical font (print size) less than 11!

In this histogram of the last 345 dyslexic students seen by my colleague, 99% would be restricted by the font size on the website.

Over half of them needed a font size of 16. They would still be restricted if the default was font 16.

This is in no way a new idea. Other studies have found a close relationship between font size and reading performance. One report suggested that font size management is a major reason for the popularity of Kindles, in addition to that lovely grey background.

In work being undertaken with a primary school, font size is the starting point in reducing barriers to reading. You can see a close link between oral reading fluency and critical print size. An adjustment that could be made in all printed materials at the school and in extreme cases using a computer screen.

I will publish this in Font 20 as well. There are issues in terms of restricting the space for advertising on the web… sorry to you graphics artists.

Back to the website.

Taking our cue from the expressed philosophy let’s consider accessibility. How can the user of the website reduce the barriers for themselves?
There is an accessibility option at the top of the site.  This gives the opportunity to raise the font to a massive Font 12!!!!!


Welcome to DnA, a social enterprise
 story designed and led by dyslexic and
 disabled adults working with the sole
 purpose to provide support, strategies,
Assistive Technology training and
 shared wellbeing.
                                                    
Ok that fantastic possibility will now bring improved access to…
..another 7% …..of the dyslexic adults reading this site, leaving another 92% struggling because of font size.
Mind you they probably think they are struggling because they are dyslexic!
I will quote someone who, on the occasions when I talked with him gave me great hope about what could be.
Attitude is indeed the biggest disablement. We all have the ability to change the attitude of others. ‘
Unfortunately that ‘attitudes’ that we strike up for ourselves; unwillingness to remove /reduce obvious boundaries restricts our ability to change the attitude in others.


I worked for a few years with a group of inspiring, severely physically disabled young people at Hephaistos School, when I first started teaching. They taught me a great deal.  First remove /reduce the barriers.  

And now at font 20

Font size.  Such an easy starting point to reduce barriers to reading. Critical Print Size

Yesterday I met the daughter of a friend who I taught with years ago. She always had difficulties in school, which were ‘diagnosed’ as Dyslexia when she went to the local FE College.

No one at school suggested that she may have a barrier to reading that could be reduced or removed.
The conversation which took place went over her experiences as a person growing up with dyslexia and how she was ‘assisted’.

She recounted how her difficulties got worse when she started in secondary school.  The drop in font size was a real problem for her. So much so that at the age of 12 she went to an optician where she was identified as significantly short sighted with an astigmatism in both eyes.

In secondary school, she did not like practical work which involved reading instructions or writing. She was very messy or clumsy if she mixed the practical work with reading and writing. This is a very typical story that I hear from adult dyslexic people.  Where possible she would work in a team and leave the reading and writing to other members of the team…. No problems then.

This did not solve her problem though.  In a way it must have reinforced in her the idea that she just was not really academic. The optician could not fix her problem.   She was still though very aware that the reading was really limited by the small font sizes being offered to her, in all the books and print outs.
With smaller fonts the letters seemed to crowd each other, especially the ends of the words, which she would guess at. After a short period of slow reading the letters and lines would start to move, become unstable.

At the FE College, she was referred to an Educational Psychologist, who duly tested her and pronounced her ‘dyslexic’. Unfortunately, she was unable to read the ‘report’ and did not understand the ideas when explained to her.  Again this is a common experience of dyslexic undergraduates.  It is often as if they do not recognise the report as really being about them.
Back to my friend’s daughter.

At the college the support staff went through ‘testing for ‘colour’. A range of ‘coloured plastic sheets’ were placed on to text.

Some stabilised the text for a short time, then the movement and crowding would start again. She has a ‘bluish filter’ which sort of helps sometimes.  But a larger font always does!

I am writing this today, after a few weeks without a blog following a spinal problem which has made it difficult to use my computer, because yesterday I received an email from a group of dyslexia specialists which I am a member of which included a link to a particular website.


Now the people who run this website are great people, I have tremendous respect for them. I have tried to engage them in a dialogue, but just get ignored. Perhaps they know something about me that I do not. Let’s consider the website, please look at it as you read this.

The first thing that hits you is the bit of graphics on the home page with the philosophy of the two main people at DNA and amongst others, that well respected ‘honourable /co-opted dyslexic Albert Einstein.




Now this is a good start.  Large font, not a white background.

Then we get into body of the website.

Welcome to DnA, a social enterprise story
designed and led by dyslexic and disabled
 adults working with the sole purpose to
 provide support, strategies, Assistive
 Technology training and shared wellbeing.
The website appears to be defaulted to Arial 10.5 font.  From work with dyslexic undergraduates in the UK the following histogram has been produced showing the ‘optimum font size, needed to stop the dyslexic student’s reading performance being limited by font size.



Ignore the pretty colours but look at the column on the left.  There were 3 students who had a critical font (print size) less than 11!

In this histogram of the last 345 dyslexic students seen by my colleague, 99% would be restricted by the font size on the website.

Over half of them needed a font size of 16. They would still be restricted if the default was font 16.

This is in no way a new idea. Other studies have found a close relationship between font size and reading performance. One report suggested that font size management is a major reason for the popularity of Kindles, in addition to that lovely grey background.
In work being undertaken with a primary school, font size is the starting point in reducing barriers to reading. 

You can see a close link between oral reading fluency and critical print size.  An adjustment that could be made in all printed materials at the school and in extreme cases using a computer screen.

I will publish this in Font 20 as well. There are issues in terms of restricting the space for advertising on the web… sorry to you graphics artists.

Back to the website.

Taking our cue from the expressed philosophy let’s consider accessibility. How can the user of the website reduce the barriers for themselves?
There is an accessibility option at the top of the site.  This gives the opportunity to raise the font to a massive Font 12!!!!!



Welcome to DnA, a social enterprise
 story designed and led by dyslexic and
 disabled adults working with the sole
 purpose to provide support, strategies,
Assistive Technology training and
 shared wellbeing.
                                
Ok that fantastic possibility will now bring improved access to…
..another 7% …..of the dyslexic adults reading this site, leaving another 92% struggling because of font size.

Mind you they probably think they are struggling because they are dyslexic!

I will quote someone who, on the occasions when I talked with him gave me great hope about what could be.

Attitude is indeed the biggest disablement. We all have the ability to change the attitude of others. ‘
Unfortunately that ‘attitudes’ that we strike up for ourselves; unwillingness to remove /reduce obvious boundaries restricts our ability to change the attitude in others.

I worked for a few years with a group of inspiring, severely physically disabled young people at Hephaistos School, when I first started teaching. They taught me a great deal.  First remove /reduce the barriers.

Monday, 3 June 2013

Dyslexia, Reading fluency, Colour, parafoveal processing and logic



This weekend I was talking with a relative who is also a teacher.  She told me that the new school she is working at was using colour overlays to help the pupils.

The school has a high proportion of students with ‘Special educational needs’.
They are aiming to get around 90% of their pupils into the 5+ GCSE grades ABC.  
 
Most SEN pupils have relatively low reading speeds, and there are good arguments to think that the low reading speeds are really about limited visual attention span, the number of letters that can be processed in parallel as they read. (see previous posts) or the number of milliseconds it takes to compute  the visual data this block of letters and others that are in the parafovea; how many letter can be processed within affixation…the perceptual span.

If this is true, and it is looking increasingly certain as more research comes out, then the gains that are experienced when using a coloured filter, has to be caused by.
  1. A decrease in the retinal data compute time … increased data transfer rate per millisecond
  2. Better spatial and temporal data integration as the ‘lines’ or edges’ move across the centre-surround arrangement of the cone cells of the retina; leading to reduced crowding effects.

Research into this is totally possible, but I do not have the resources. All published research seems to treat 'colour' as anything other than white or grey.

Usually 'red' , 'green',  'blue'  or yellow. With no real thought about the biochemistry of pigments and the metrics of pigment bleaching in the cone cells or the edge detection process.


My own work tells me that it is not actually really about ‘colour’ anyway.  Unfortunately, it requires a different mindset about ‘colour’ than appears to be dominant.

The filters that most schools use are from a very restricted palette. For example there is one cyan usually.  Cyan is not really a colour. It is what is perceived when the red cone stimulation is reduced compared with the green cone cells.

About half the population tested by my colleagues and me (from a sample of around 12,000) actually benefit from the use of ‘a cyan’.

But there are thousands of ‘cyans’; If the filter takes out too much red then it may be worse than a white background.

There may be other limiting factors not checked properly.

  • It may be that unless the font size is big enough, then the changing the amount of red will have no effect. It is not the controlling factor.

  • It may be that the ambient lighting is too bright and again the Cyan filter will have no effect.

  • Perhaps they need ophthalmic glasses first  to get any benefit.


The danger is that many young people at this school and other colleges and universities, will actually get minimal or no benefit when they could have got a great deal by teachers/schools/support staff not really understanding what they are doing.


A few will gain a great deal, and will be what spurs people on to use this very ‘cheap’ approach. Many, the majority, will get a ‘false negative’ and will have their failures reinforced.

 This costs them and our country a fortune unnecessarily.  The false negatives, and minimal benefits  that most children get is actually very expensive.