Table 2

 Examples of sample wording from Central Office for Research Ethics Committees guidelines for the development of written consent information25

TopicSuggested sample text
Randomised trial“Sometimes because we do not know which way of treating patients is best, we need to make comparisons. People will be put into groups and then compared. The groups are selected by a computer which has no information about the individual—ie. by chance. Patients in each group then have a different treatment and these are compared.”
Blind trial“In a blind trial you will not know which treatment group you are in. If the trial is a double-blind trial, neither you nor your doctor will know in which treatment group you are (although, if your doctor needs to find out he/she can do so).”