andere psychische stoornissen waarbij sprake is van overmatige achterdocht Paranoia threat beliefs
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Help-seeking or in outpatient care. 2) Experience threat beliefs, held with at least 60% conviction (Psychotic Symptom Rating Scale - Delusions). 3) Low wellbeing, score of 43 or less (Warwick-Edinburgh Mental Wellbeing Scale). 4) Sixteen years or older.
Exclusion criteria
Exclusion criteria: 1) Insufficient understanding of the Dutch language. 2) Currently receiving individual therapy or peer counselling with a frequency of at least once every month. 3) Unable to understand and sign the informed consent form.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Wellbeing ( Warwick-Edinburgh Mental Wellbeing Scale, WEMWBS; Tennant et al., 2007). The WEMWBS can detect clinically meaningful change (Collins et al., 2012; Maheswaran, Weich, Powell, & Stewart-Brown, 2012). | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcome: Conviction of Main Threat Belief (Psychotic Symptom Rating Scale, PSYRATS; Haddock, McCarron, Tarrier, & Faragher, 1999) Distress of Main Threat Belief (PSYRATS) Paranoid ideation (Revised-Green Paranoid Thought Scale, R-GPTS; Freeman, Loe, et al., 2019) Patient Satisfaction (Greenwood et al., 2010) Acitivty (Jolley et al., 2006) Mediators: Trauma-imagery (Trauma Screening Questionnaire, TSQ; Brewin et al., 2002; De Bont et al., 2015) Insomnia (Insomnia Severity Index, ISI; Bastien, Vallières, & Morin, 2001) Self-esteem (Brief Core Schema Scale, BCSS; Fowler et al., 2006) Worry (Dunn Worry Questionnaire, DWQ; Freeman et al., 2019) Voices (Voices Impact Scale, VIS; Strauss, 2016) Safety Behaviours (Oxford Agoraphobic Avoidance Scale, OAAS; Lambe et al., 2021; Oxford Paranoia Defence Behaviours Questionnaire, OPDBQ; under review) Reasoning Biases (Fast and Slow Thinking Questionnaire, FAST; Hardy et al., 2020; Explanations of Experiences, EoE; Freeman et al., 2004; Maudsley Assessment of Delusions Schedule-Possibility of being Mistaken, MADS-PM; Wessely et al., 1993) Personal Recovery (Questionnaire about the Process of Recovery, QPR; Neil et al., 2009) Resilience (The Brief Resilience Scale, BRS; Smith et al., 2008). Other study parameters: Therapeutic relationship (Counsellor Rating Form-Short form, CRF-S; Corrigan & Schmidt, 1983) Working alliance (Working Alliance Inventory-Short Form Revised, WAI-SR; Paap & Dijkstra, 2017) Health-economic evaluation (treatment Inventory of Costs in Patients with psychiatric disorders (TIC-P), the standardized 5-level EuroQol 5-dimensional questionnaire (EQ-5D-5L)). | — |
Countries
Netherlands