Table 1.

Outcome measures used in the WELLFOCUS study

WELLFOCUS model component	Measure	Rater	Rationale
Distal outcome
Personal well-being	WEMWBS	Patient	Measures overall well-being, i.e., enhanced sense of self
Proximal outcomes
Good feelings	Savouring Beliefs Inventory	Patient	Assesses pleasure in the past present and future, which is a form of good feeling addressed in the intervention
	PPTI positive emotions	Patient	Assesses enjoyment and happiness, which is a form of good feeling addressed in the intervention
Symptom relief	Short Depression-Happiness Scale	Patient	Measures the reduction of depression, which is an intended outcome of PPT
	Brief Psychiatric Rating Scale	Researcher	Measures general symptom severity including psychosis-specific symptoms
	CORE10	Patient	Measures general symptom severity
Connectedness	PPTI relationships	Patient	Measures the presence of supportive relationships as a form of connectedness addressed in the intervention
Hope	Integrative Hope Scale	Patient	Measures hope, which is an indicator of well-being
Self-worth	Rosenberg Self-Esteem Scale	Patient	Measures self-worth, which is an indicator of well-being
Empowerment	Rogers Empowerment Scale	Patient	Measures empowerment, which is an indicator of well-being
Meaning	Sense of Coherence Scale	Patient	Measures meaning, which is an indicator of well-being
	PPTI meaning		Provides a PPT-specific measure of meaning
Other outcomes
Quality of Life	Manchester Short Assessment of Quality of Life	Patient	Quality of life is a form of well-being measure, allowing triangulation with the WEMWBS
Social disability	Health of the Nation Outcome Scale	Researcher	To give opportunity to compare changes in well-being with social disability
Functioning	Global Assessment Functioning	Researcher	To give opportunity to compare changes in well-being with functioning

PPT, Positive Psychotherapy; PPTI, Positive Psychotherapy Inventory; WEMWBS, Warwick-Edinburgh Mental Well-Being Scale.