For those planning on doing the ex-study design questions from Units 3 and 4 (credits to teacher from my school);
Relevant questions for Unit 4 from 2007 (ie. not the current study design) under exams include:
UNIT 3 EXAMS
2007
MCQ: 6, 7, 8, 9, 14, 15, 16, 19
SA: 1, 2, 4, 6
2006
MCQ: 3, 4, 5, 11, 14, 16, 17, 18
SA: 5, 6, 8
2005
MCQ: 3, 4, 6, 7
SA: 4, 5, 6, 7, 8
2004
MCQ: 5, 6, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
SA: 1b, 5, 6
2003
MCQ: 1, 2, 9, 10, 15, 18, 20
SA: 2, 4, 6
2002
MCQ: 1, 2, 3, 4, 5, 6, 7, 8, 14, 16, 18, 19, 20
SA: 3, 4
2001
MCQ: 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 20, 21, 22
SA: 4
2000
MCQ: 11, 12, 13, 14, 15, 16, 19, 20
SA: 6
UNIT 4 EXAMS
2007
MCQ: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
SA: 6, 7, 8
2006
MCQ: 1, 2, 3, 4, 5, 6, 7, 8, 12
SA: 4, 5, 6
2005
MCQ: 5, 6, 7, 8, 9, 10, 11, 12, 13, 15
SA: 3, 6, 7, 8
2004
MCQ: 2, 4, 5, 6, 7, 8, 9
SA: 3, 4, 5
2003
MCQ: 1, 2, 3, 4, 5, 6, 7, 8, 9
SA: 3, 4, 5a, b, 6
2002
MCQ: 13, 14, 15, 16, 17, 18, 19, 20
SA: 4b, 5, 6
2001
MCQ: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
SA: 1, 2
2000
MCQ: 2, 3, 4, 5, 6, 7, 15
SA: 2, 3, 4