Psychological Wellbeing Practitioners (PWPs) are central to NHS Talking Therapies services for depression and anxiety (TTad; formerly ‘IAPT’). This workforce has been trained to deliver low-intensity treatments for mild to moderate depression and anxiety. In practice, PWPs routinely work with more complex clients, likely due to a combination of reasons. Over half of referrals experience concurrent personality difficulties, which are linked to poorer treatment outcomes, and PWPs describe feeling unskilled to work with these clients. This study aimed to develop and pilot a Continuing Professional Development workshop for PWPs about enhancing practice in the context of concurrent personality difficulties; and evaluate acceptability, feasibility and potential impacts on clinical skills and attitudes. This is an audit of routine feedback from a pilot of the workshop offered in a single TTad PWP workforce (n=139). The workshop was successfully developed and a series of five workshops were delivered to 74% of the PWP workforce. Feedback was overwhelmingly positive, and a majority of PWPs reported improved confidence in key skills covered during the workshop, and a positive attitude towards working with clients with personality difficulties after the workshop. PWPs described enhanced capability, opportunity and motivation to undertake work with this client group following the workshop. The workshop showed potential to improve PWP confidence and skill to support TTad clients in the context of personality difficulties, although it is not yet known if this translates to better treatment outcomes for clients. Implications for practice and future research are discussed.

1. (1) Understand the feasibility of gathering feedback and outcome data of a Continuing Professional Development (CPD) workshop delivered in routine practice for PWPs.

2. (2) Understand PWP perspectives on attending a CPD workshop to support tailoring PWP treatments for depression and anxiety in the context of personality difficulties.

3. (3) Reflect on potential opportunity to enhance PWP treatments in the context of personality difficulties via brief training workshops.

4. (4) Consider how COM-B can be used to explore barriers and enablers to PWPs implementing new learning to their practice.

The manner in which heuristics and biases influence clinical decision-making has not been fully investigated and the methods previously used have been rudimentary.

Two studies were conducted to design and test a trial-based methodology to assess the influence of heuristics and biases; specifically, with a focus on how practitioners make decisions about suitability for therapy, treatment fidelity and treatment continuation in psychological services.

Study 1 (N=12) used a qualitative design to develop two clinical vignette-based tasks that had the aim of triggering heuristics and biases during clinical decision making. Study 2 (N=133) then used a randomized crossover experimental design and involved psychological wellbeing practitioners (PWPs) working in the Improving Access to Psychological Therapies (IAPT) programme in England. Vignettes evoked heuristics (anchoring and halo effects) and biased responses away from normative decisions. Participants completed validated measures of decision-making style. The two decision-making tasks from the vignettes yielded a clinical decision score (CDS; higher scores being more consistent with normative/unbiased decisions).

Experimental manipulations used to evoke heuristics did not significantly bias CDS. Decision-making style was not consistently associated with CDS. Clinical decisions were generally normative, although with some variability.

Clinical decision-making can be ‘noisy’ (i.e. variable across practitioners and occasions), but there was little evidence that this variability was systematically influenced by anchoring and halo effects in a stepped-care context.