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Table 2 Study measures and assessment times

From: Digital IAPT: the effectiveness & cost-effectiveness of internet-delivered interventions for depression and anxiety disorders in the Improving Access to Psychological Therapies programme: study protocol for a randomised control trial

Measure Assessment Time of assessment
M.I.N.I. 7.0.2 for DSM-5 Diagnosis BL and 3-FU
PHQ-9 Depression BL, contin, Post-T, FU
GAD-7 Anxiety BL, contin, Post-T, FU
IAPT Phobia Scale Specific Phobia BL, contin, Post-T, FU
WSAS Functioning BL, contin, Post-T, FU
SPIN Social Phobia BL, Post-T, FU
HAI Health anxiety BL, Post-T, FU
PSWQ GAD BL, Post-T, FU
PDSS Panic BL, Post-T, FU
EQ-5D-5 L Health status BL, Post-T, 6-FU, 9-FU, 12-FU
ReQol-10 Recovering quality of life/ mental wellbeing BL, Post-T, 6-FU, 9-FU, 12-FU
CSRI Resource utilisation BL, Post-T, 6-FU
PEQ Patient experience Post-T
STAR-C Therapeutic alliance Throughout treatment, at each review of client
STAR-P Therapeutic alliance Throughout treatment, after each progress review with clinician
PBRS-A Repetitive Negative Thinking BL, week 4, Post-T, 3-FU
ERQ Emotion Regulation BL, Post-T
FATS CBT-related skills usage FU
Therapist behaviours checklist Therapist behaviours During treatment at review of client
Expectancy / credibility Expectancy and credibility with the intervention BL, week 4, Post-T
Dropout questionnaire Reasons for dropout 3-FU
  1. BL Baseline, Post-T Post-Treatment, FU All follow-ups, 3-FU 3-month follow-up, 6-FU 6-month follow-up, contin continuous, PHQ-9 Patient health questionnaire-9, GAD-7 Generalized anxiety disorder-7, WSAS Work and social adjustment, SPIN Social Phobia Inventory;` HAI Short health anxiety inventory, PDSS Panic disorder severity scale-self report, PSWQ Penn state worry questionnaire, EQ-5D-5 l EuroQol-5 Dimension-5 level, ReQoL-10 Recovering quality of life – 10 item version, CSRI Client services receipt inventory, PEQ Patient Experience questionnaire, PBSR-A Positive Beliefs about Rumination Scale – Adapted Version, FATS Frequency of Actions and Thoughts Scale, ERQ Emotion Regulation Questionnaire