Govert Veldhuijzen

26 Chapter 1 Table 2. Main research questions and methodology addressed in chapters of this thesis Chapter Research question Study design Measures 2. Is hospital based computer assisted instruction (CAI) feasible for patient education prior to colonoscopy in the waiting room of the outpatient’s clinic? Prospective controlled trial - Bowel preparation scores (BBPS / OBPS) - Comfort scores - Satisfaction scores - 10 item information re-call test 3. What are the main stumble blocks in implementing computer assisted instruction in real life practice? Viewpoint paper on experiences in implementation processes - Implementation data of the CAI in 14 endoscopy suites nationwide 4. How can CAI be improved into computer based education (CBE) at home using two-way communication? Multicenter randomised controlled trial – study protocol - Preparation of trial sites before RCT start 5. Is CBE non-inferior to nurse counselling prior to colonoscopy in quality of bowel preparation? Does CBE reduce nurse counselling visits / lower patient sickness absence? Does CBE reduce anxiety / improve satisfaction and information recall in patients prior to colonoscopy? Multicenter randomised controlled trial - Bowel preparation scores (BBPS) - Sickness absence leave - Anxiety (STAI) - Satisfaction (NPS / WTR) - 10 item information re-call test 6. Is the use of CBE reducing costs in the endoscopy unit? Cost minimization analysis Cost model Out of pocket cost analysis iMTA productivity score 7. Is the use of VR glasses feasible to relieve pain and discomfort in patients during colonoscopy? Pilot study - Anxiety (STAI) - Pain (NRS) - Satisfaction (NPS / WTR) 8. Is the GESQ questionnaire for measuring patient satisfaction suitable for use in the Dutch population? Validation study - Guidelines on questionnaire validation (CONSORT) CAI: computer assisted instruction. CBE: computer based education. STAI: State-and-Trait Anxiety Inventory. NRS: Numeric Rating Scale. NPS: Net promoter score. WTR: Willingness to return.