Public Health

Question 1

Dunning Index

Answer 1

Gingival Bone Count

Question 2

Recall bias

Answer 2

Case cohort

Question 3

bias with cohort study

Answer 3

selection
confounding
interviewer bias

Question 4

bias associated with case control study

Answer 4

selection
confounding
recall 
Berkesonian
interviewer bias

Question 5

randomised controlled trial

Answer 5

baseline characteristics are compared
bias can be eliminated by double binding
sample size depends on type of study
dropouts are included called intention to treat (ITT) - ONCE RANDOMISED, ALWAYS ANALYSED