Misunderstanding and misinformation around variant and differing presentations means that misdiagnosed individuals and those who do not receive a diagnosis at all are often failed by medical, education, social care and criminal justice systems. They are detained in inappropriate settings; don’t receive beneficial therapeutic input; have their families accused of fabricated or induced illness (FII); are kept in prison or youth offending institutions longer than their original tariffs, and shockingly their life expectancy is often curtailed as a result.

This comprehensive resource will help multidisciplinary professions to understand, contextualise, and better identify diverse autistic presentations. It includes an overview of the autism diagnostic process, an exploration of controversial and commonly confused diagnoses such as PDA, ODD, CD, ASPD, and BPD; discussions of best practice for investigating FII; and analysis of the specific challenges of autism diagnosis in relation to women and girls, BAME communities, schools, and the criminal justice system.

Describing the current assessment process for autism diagnosis, the book explains why girls are under- or mis-diagnosed, leading to later mental health issues. It outlines the types of intervention that are particularly helpful for working with girls to reduce anxiety, improve social interaction skills, and manage self-harm. The book also covers how to manage eating disorders and feeding difficulties, focusing on working with girls with sensory processing difficulties. There is advice on how to deal with the emotional impact on parents, carers and families, and the challenges they face when negotiating appropriate psychological and educational support.