In the study by Baron-Cohen et al. (eyes test), Group 1 consisted of adults diagnosed with Asperger Syndrome (AS) or High-Functioning Autism (HFA) recruited through volunteer sampling.
To what extent can this group be considered a biased sample of individuals with these conditions?
47 exam-style questions on OCR A Level Psychology Understanding disorders, covering Freud (1909): Little Hans and Baron-Cohen et al. (1997): Autism in adults. Each one has a worked solution and a mark scheme showing where the marks go.