PSYD33H3 Lecture Notes - Lecture 6: Clinical Trial, Repetition Compulsion, Electronic Body Music
Document Summary
Randomised controlled trials are the most rigorous way of determining whether a cause-effect relation exists between treatment and outcome and for assessing the cost effectiveness of a treatment. Patients and trialists should remain unaware of which treatment was given until the study is completed-although such double blind studies are not always feasible or appropriate. All intervention groups are treated identically except for the experimental treatment. Patients are normally analysed within the group to which they were allocated, irrespective of whether they experienced the intended intervention (intention to treat analysis) The analysis is focused on estimating the size of the difference in predefined outcomes between intervention groups. Non-randomised controlled trials, can detect associations between an intervention and an outcome. But they cannot rule out the possibility that the association was caused by a third factor linked to both intervention and outcome. Laying out the fundamental controversies or issues and retell story solution.
