Efficacy of digital cognitive behavioural therapy for symptoms of generalised anxiety disorder: a study protocol for a randomised controlled trial

Table 1 Administered self-report measures and timeline

Measure	Screen	Study period
Measure	Screen	Baseline (week 0) and randomisation	Mid-intervention (week 3)	Post-intervention (week 6)	Follow-up (week 10)^a
Basic screening questions (age, pregnancy)	X
Medical and psychiatric history questions	X
Prescription medication use	X
MINI for GAD	X
GAD-7	X		X	X	X
Demographic questions		X
Credibility/expectancy questionnaire		X
PHQ-9		X	X	X	X
PSWQ		X	X	X	X
SCI-8		X	X	X	X
WEMWBS		X		X	X
Patient-Generated Index		X		X	X
Modified symptom checklist				X
Treatment satisfaction questions^b				X
Concomitant treatment		X	X	X	X

GAD generalised anxiety disorder, GAD-7 seven-item Generalised Anxiety Disorder questionnaire, MINI Mini-International Neuropsychiatric Interview, PHQ-9 nine-item Patient Health Questionnaire, PSWQ Penn State Worry Questionnaire, SCI-8 eight-item Sleep Condition Indicator, WEMWBS Warwick–Edinburgh Mental Wellbeing Scale
^aParticipants randomised to the intervention arm will additionally be invited to complete a similar uncontrolled follow-up assessment online 6 months from randomisation
^bMeasure will be administered to participants in the intervention arm only

ISSN: 1745-6215