Loneliness as an active ingredient in preventing or alleviating youth anxiety and depression: a critical interpretative synthesis incorporating principles from rapid realist reviews.

Loneliness is a relatively common problem in young people (14-24 years) and predicts the onset of depression and anxiety. Interventions to reduce loneliness thus have significant potential as active ingredients in strategies to prevent or alleviate anxiety and depression among young people. Previous reviews have focused on quantitative evidence and have not examined potential mechanisms that could be targets for intervention strategies. To build on this work, in this review we aimed to combine qualitative and quantitative evidence with stakeholder views to identify interventions that appear worth testing for their potential effectiveness in reducing loneliness, anxiety and depression in young people aged 14-24 years, and provide insights into the potential mechanisms of action. We conducted a Critical Interpretative Synthesis, a systematic review method that iteratively synthesises qualitative and quantitative evidence and is explicitly focused on building theory through a critical approach to the evidence that questions underlying assumptions. Literature searches were performed using nine databases, and eight additional databases were searched for theses and grey literature. Charity and policy websites were searched for content relevant to interventions for youth loneliness. We incorporated elements of Rapid Realistic Review approaches by consulting with young people and academic experts to feed into search strategies and the resulting conceptual framework, in which we aimed to set out which interventions appear potentially promising in terms of theoretical and empirical underpinnings and which fit with stakeholder views. We reviewed effectiveness data and quality ratings for the included randomised controlled trials only. Through synthesising 27 studies (total participants n = 105,649; range 1-102,072 in different studies) and grey literature, and iteratively consulting with stakeholders, a conceptual framework was developed. A range of 'Intrapersonal' (e.g. therapy that changes thinking and behaviour), 'Interpersonal' (e.g. improving social skills), and 'Social' Strategies (e.g. enhancing social support, and providing opportunities for social contact) seem worth testing further for their potential to help young people address loneliness, thereby preventing or alleviating depression and/or anxiety. Such strategies should be co-designed with young people and personalised to fit individual needs. Plausible mechanisms of action are facilitating sustained social support, providing opportunities for young people to socialise with peers who share similar experiences, and changing thinking and behaviour, for instance through building positive attitudes to themselves and others. The most convincing evidence of effectiveness was found in support of Intrapersonal Strategies: two randomised controlled studies quality-rated as 'good' found decreases in loneliness associated with different forms of therapy (Cognitive Behavioural Therapy or peer network counselling), although power calculations were not reported, and effect sizes were small or missing. Strategies to address loneliness and prevent or alleviate anxiety and depression need to be co-designed and personalised. Promising elements to incorporate into these strategies are social support, including from peers with similar experiences, and psychological therapy.

The concept and definition of low intensity cognitive behaviour therapy.

There is confusion in the terminology used to describe different forms of cognitive behaviour therapy, in particular low intensity CBT. Such confusion has implications for research, clinical practice and service organisation. This thought-piece aims to describe the key components of low intensity CBT in comparison to brief high intensity standard CBT. It is proposed that low intensity CBT (i) utilises self-help materials, (ii) is six hours or less of contact time with each contact being typically 30 minutes or less, and (iii) any input can be provided by trained practitioners or supporters. These components distinguish the intervention from brief high intensity intensity CBT which (i) is based on the standard evidence-based CBT treatment, with therapy contact time 50% or less than the full CBT intervention, and (ii) is usually delivered by someone with a core mental health professional qualification or equivalent. Brief CBT can refer to either low intensity CBT and/or brief high intensity CBT. We hope that making the distinction between these different forms of intervention stimulates debate and helps consistent and appropriate categorisation for future research and practice.

Therapist personality traits as predictors of psychological treatment outcomes.

Aim: To investigate if therapists' personality influences their patients' treatment outcomes. Methods:N = 4,052 patients were treated by 69 therapists, including 36 Psychological Wellbeing Practitioners (PWPs) and 33 Cognitive Behavioural Therapists (CBTs). Therapists completed the NEO-PI-R personality inventory, they reported years of clinical experience, and expert assessors rated their clinical competence and reflective abilities. Their patients completed pre and post-treatment measures of depression (PHQ-9) and anxiety (GAD-7). Associations between therapist personality traits and patient treatment outcomes were examined using multilevel modelling, controlling for therapist demographics, clinical experience, technical competence and reflective ability. Results: Relative to other sources of variability, therapists accounted for 1% to 3% of overall variability in treatment outcomes. However, the magnitude of systematic heterogeneity in performance between therapists was around 6%, such that the best-performing therapists outperformed average therapists by a margin of moderate to large effects (g = .57-1.10). Clinical experience, technical competence and reflective ability were unrelated to treatment outcomes. Patients treated by PWPs with above-average agreeableness scores and CBTs with above-average openness to experience scores had poorer treatment outcomes. Conclusions: Therapist effects may be partly explained by the influence of their personality on their work with anxious and depressed patients.

Judging clinical competence using structured observation tools: A cautionary tale.

BACKGROUND: One method for appraising the competence with which psychological therapy is delivered is to use a structured assessment tool that rates audio or video recordings of therapist performance against a standard set of criteria. AIMS: The present study examines the inter-rater reliability of a well-established instrument (the Cognitive Therapy Scale - Revised) and a newly developed scale for assessing competence in CBT. METHOD: Six experienced raters working independently and blind to each other's ratings rated 25 video recordings of therapy being undertaken by CBT therapists in training. RESULTS: Inter-rater reliability was found to be low on both instruments. CONCLUSIONS: It is argued that the results represent a realistic appraisal of the accuracy of rating scales, and that the figures often cited for inter-rater reliability are unlikely to be generalizable outside the specific context in which they were achieved. The findings raise concerns about the use of these scales for making summative judgements of clinical competence in both educational and research contexts.