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Richard Woods Profile picture
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12 Nov, 4 tweets, 1 min read
Pretty much my view on key PDA is ASD supporters really.
It is important, we cannot really start generating valid knowledge on PDA with much of its research having flawed axiology and methodologies due to the erroneous assumption it is an ASD.
I standby the point that we should be de-platforming anyone is saying PDA is an ASD.
I discuss some of the issues created by assuming PDA is an ASD here:
…emandavoidancecom.files.wordpress.com/2020/08/03-aug…

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More from @Richard_Autism

Richard Woods Profile picture
11 Nov
That moment when you realise, you need to define what you consider to be in all its glory and not.
First one, so this is what I consider PDA traits criteria to be (on the right hand side). Image
The wording is mainly based on Newson's clinical descriptions, except where Newson's assumptions are wrong. E.g. panic attacks being attributed to Surface Sociability trait.
Read 24 tweets
Richard Woods Profile picture
9 Nov
I standby this comment, any credible or reputable autism expert should be saying PDA is NOT autism.

There are too many reasons for me to go into at this moment. Two example is how Newson said PDA is not autism, or did not base PDA on Triad of Impairment.
Newson's clinical interpretations do not fit well into accepted clincial practice, as she used her own definitions for 2 diagnostic groupings she placed PDA in.
Newson's definitions for Pervasive Developmental Disorders are broader than what was accepted including non-autistic persons in it, while not including other accepted PDD's of Childhood Disintegrative Disorder & Rett's Syndrome.
Read 13 tweets
Richard Woods Profile picture
3 Nov
@AutismBoat @DrRubySapphire @AnnMemmott One cannot make the assumption from Newson's work PDA is part of the autism spectrum. Newson:
- Knew about triad of impairment in 1982, did not base PDA on it.
- There are important clinical differences that mean PDA is not autism.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- She removed any cases who presented autism (even atypical) autism features from her data base.
- Explicitly tells us PDA is not autism & should not described as that.
- Never assessed her PDA cases for autism.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- Newson never systematically investigated features of autism features in her database.
- Included non-autistic persons in her diagnostic groupings, including a broader than what is accepted version of Pervasive Developmental Disorders.
...
Read 11 tweets
Richard Woods Profile picture
22 Oct
Some reasons why I use Newson's work:
1) Newson never viewed PDA as an ASD and this is reflected in her diagnostic criteria and clinical descriptions. She certainly never argued fitting PDA into 2 main diagnostic manuals based on accepted diagnostic groupings
2) Newson included non-autistic persons in her 2 diagnostic groupings, her own Pervasive Developmental Disorders grouping and her own NEW Pervasive Developmental Coding Disorder.
3) Newson never assessed persons with PDA for autism or systematically investigated autism features.
4) Newson often deliberately did things if she thought they helped other stakeholders, mainly parents.
Read 18 tweets
Richard Woods Profile picture
21 Oct
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Well, I stumbled upon today that Christie seems to have been misleading people since 2007 about Newson's views on Pervasive Developmental Disorders & PDA. Do not know if it is deliberate or not. Either way not a good look.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian He is leaving out information that undermines his argument PDA is part of autism due to Newson viewing it as PDD.

Yes, refers to an out of date image from 1999 and not Newson's later views on the topic.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Newson changed the diagram to include specific language impairments. She had wider definition & view PDD umbrella than what is accepted. Also said helpful to think persons with a PDD have coding issues.
Read 12 tweets
Richard Woods Profile picture
13 Oct
I do not believe it. It appears that Christie submitted evidence to have PDA recognised as an ASD in Australia. Did not disclose COI or mention pertinent information that would undermine PDA recognition.
@autismcrc This small group of professionals would be the PDA Development Group, that includes Christie, who has chaired the group.
…emandavoidancecom.files.wordpress.com/2020/08/2016-p…
@autismcrc What the PDA Development Group is and what it does:
…emandavoidancecom.files.wordpress.com/2020/08/pda-de…
Read 40 tweets

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