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Table 1 Instruments used for data collection

From: Study protocol for a randomised controlled trial of internet-based cognitive-behavioural therapy for obsessive-compulsive disorder

Measurement tools/questions Time point
Clinician administered (telephone) Baseline Post-treat Follow-up
Demographics Age, gender, postcode, family characteristics, religion, education, general medical history x   
Current treatment Current physiological & psychological treatment x x x
Diagnosis Structured Clinical Interview for DSM-IV Axis I Disorders - Clinician Version (SCID-IV) [50] x x x
OCD severity Yale-Brown Obsessive-Compulsive Scale (YBOCS) [44] x x x
  Obsessive-Compulsive Inventory (OCI) [57] x x x
  Clinical Global Improvement Scale (CGI) [58] x x x
Mental health Hamilton Rating Scale for Depression (HRSD) [59] x x X
  Hamilton Rating Scale for Anxiety (HRSA) [60] x x x
  Modules
Self-report (online) 1 5 9 12
OCD measures Yale-Brown Obsessive-Compulsive Scale (YBOCS) [44] x    x
  Obsessive Compulsive Inventory (OCI) [61] x x x x
  Revised Obsessional Beliefs Questionnaire (OBQ) [62] x x x x
Psychosocial Depression, Anxiety, Stress Scale (DASS) [63] x x x x
  Centre for Epidemiologic Studies Depression Scale (CES-D) [64] x    
  General Self-Efficacy Scale (GSES) [65] x    
  Australian Quality of Life Scale (AQoLS) [66] x    x
  Brief Disability Questionnaire (BDQ) [67] x    x
  Service Utilisation & Loss of Role Questionnaire (SULRQ) [68] x    x
Treatment measures Credibility/Expectancy Questionnaire (CEQ) [69] x    
  Current Treatments Measure [70] x    x
  Treatment Evaluation Inventory (TEI) [71] x    x
  Working Alliance Questionnaire (WAQ) [72] x    x
  Homework Rating Scale (HSR-II) [73] x x x x