Concern about poor-quality support and, in some cases, abuse of people with an intellectual disability and/or autism has been at the heart of recent UK healthcare policies, such as "Transforming Care" (NHS England, 2014). Such policies have led to the closure of hospital beds to prevent the inappropriate institutional care of this group of people. In order for this to succeed, however, there is a need for a sufficient, stable and competent workforce with the appropriate skills and values base (Health Education England, 2017). These staff are needed to support people with an intellectual disability in community-based settings, some of whom are likely to display behaviours that challenge, such as self-harm or aggression (National
Institute for Health & Care Excellence [NICE], 2015). PositiveBehavioural Support (PBS) is a values-based approach that views such behaviour as serving a purpose for the individual. PBS aims to remove the need for a person to display behaviours that challenge by using approaches that identify and address the function of the behaviour and improve the person's quality of life. In addition, reactive strategies are used to effectively and safely manage behaviours that challenge if they occur (Gore et al., 2013).There is a substantial body of research that indicates that PBS is a constructive and effective way of providing support (e.g. Bowring et al.,
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