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Table 1 Overview of measurements

From: Effectiveness and acceptance of a web-based depression intervention during waiting time for outpatient psychotherapy: study protocol for a randomized controlled trial

Variables Instrument Screening T1 T2 T3
Inclusion/exclusion criteria
 Age SR x    
 Internet access SR x    
 Depressive symptoms CES-D x    
 Non-Suicidality BSI item 9   x   
 Primary outcome      
  Depressive symptoms CES-D x x x x
 Secondary outcomes
  Depressive symptoms (categorical) PHQ-9   x x x
  Health-related quality of life SF-12   x x x
  Psychological symptoms BSI   x x x
  Attitudes towards psychotherapy ATSPPH-SF   x x x
  Attitudes towards web-based interventions ATSPPH-SF (adapted version)   x x x
  Adverse events INEP    x  
  Motivation to use a web-based intervention SR x    
  Intervention adherence Response and dropout rate x   (x)  
  Intervention satisfaction CSQ-8    (x)  
 Sample characteristics
  Demographic variables SR   x   
  Internet affinity IAS   x   
  Health care utilization FIMA    x  
  Current Psychotherapy SR   x x x
  1. Note. T1 baseline, T2 post-treatment, T3 follow-up, x intervention and control group, (x) only intervention group, SR self-report, CES-D Center for Epidemiologic Studies Depression Scale, BSI Brief Symptom Inventory, PHQ-9 Patient Health Questionnaire, SF-12 Health Survey, ATSPPH-SF Attitude Towards Seeking Professional Psychological Help- Short Form, INEP Inventory for the Assessment of Negative Effects of Psychotherapy, CSQ-8 Client Satisfaction Questionnaire, IAS Internet Affinity Scale, FIMA Questionnaire for Health-Related Resource Use in an Elderly Population