Further to my earlier email I would appreciate some guidance on what threshold is used for determining reliability of MCQ tests if using Cronbach's alpha. Also when calculating the difficulty and discrimination indices is this based on those who get the correct score with the maximum points (e.g. 4) and again what threshold of acceptability is used. Thanks in advance for any help offered. Best wishes Jenny Dr Jenny Morris (SFHEA) Associate Professor (Senior Lecturer) in Health Studies Faculty of Health, Education & Society Plymouth University Knowledge Spa Trelikse Truro TR1 3HD Tel: 01872 256461