The Treatment Credibility/Expectancy Questionnaire (CEQ)64
| Expectancy about treatment outcome, as well as the credibility of the treatment |
Cognitive Emotion Regulation Questionnaire (CERQ)65
| Ability to contextualise negative events within a wider frame of reference |
The Experiences Questionnaire (EQ)66
| Ability to disengage from troublesome mental content and take a more accepting stance towards it, as well as the tendency to engage in rumination |
Differential Emotions Scale (DES67) | Intensity with which they experience different emotions on a typical day to obtain summary scores for positive emotions, negative emotions and denied emotions (the number of emotions not endorsed by the participant) |
Levels of Personality Functioning Scale (LPFS)68
| Personality functioning based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) alternative model of personality disorders. It has four subscales: identity, self-direction, empathy and intimacy |
Ruminative Responses Scale of the Response Styles Questionnaire (RRS)69
| Rumination (Module 7—Overcoming repetitive thinking) |
Distress Tolerance Scale (DTS)70
| Ability to tolerate distress (Module 3—Managing and tolerating emotions) |
Difficulties with Emotion Regulation Scale (DERS)71
| Ability to label, perceive and regulate emotions (Modules 2—Understanding emotions and 3—Managing and tolerating emotions) |
Dysfunctional Attitudes Scale (DAS) short form (versions 1 and 2)72
| Negative beliefs, thoughts and assumptions (Module 6—Tackling unhelpful thoughts) |
Kentucky Inventory of Mindfulness Skills (KIMS)73
| Mindful awareness (Module 2—Understanding emotions) |
Anxiety Sensitivity Index (ASI)74
| Fear of physical anxiety sensations (Module 3—Managing and tolerating emotions and Module 5—Tackling avoidance) |
Post-traumatic Cognitions Inventory–short version (PTCI)75
| Trauma-related beliefs and maladaptive appraisals of intrusive symptoms (Module 9—Managing upsetting memories and images) |
Skills of Cognitive Therapy76
| Implementation of cognitive therapy skills (Module 6—Tackling unhelpful thoughts) |
The Multidimensional Experiential Avoidance Questionnaire77
| Avoidance of internal experiences including thoughts, feelings, physical sensations (Module 5—Tackling avoidance) |