They cast doubt on the biological validity of the distinction between ASD, ADHD and OCD.
Similarly, in this editorial – https://www.ncbi.nlm.nih.gov/pubmed/28714261 – Waterhouse et al write "The ASD diagnosis lacks boundary construct validity because 96% of those with ASD have significant non-diagnostic symptoms, including many who have full comorbid disorders"
They cast doubt on the biological validity of the distinction between ASD, ADHD and OCD.
Similarly, in this editorial – https://www.ncbi.nlm.nih.gov/pubmed/28714261 – Waterhouse et al write "The ASD diagnosis lacks boundary construct validity because 96% of those with ASD have significant non-diagnostic symptoms, including many who have full comorbid disorders"
Waterhouse et al expand on their arguments in that editorial in this paper – https://link.springer.com/article/10.1007%2Fs40489-016-0085-...