What is a randomized clinical trial?
What will be an ideal response?
Randomized clinical trials are commonly used to determine whether a treatment is effective. One group of subjects is given a treatment, while another is given a placebo. Ideally, the study is double-blind, meaning that neither the subjects nor whoever is assessing whether the treatment has had an effect knows what condition the subject is in. Such procedures are designed to control for potential bias.
You might also like to view...
As a behavioral advisor to the World Health Organization, you are required to assess drug use and abuse in indigenous populations. You have been assigned to study the South American natives' use of coca leaves, which are part of the plant from which
cocaine is derived. In reading about past findings, you discover that these native groups a. have very few drug use problems. b. have very serious drug use problems. c. are so hostile to the World Health Organization that no studies have been done. d. have almost been wiped out due to local drug wars.
A frequency distribution with a cluster of scores and a long tail to its left is called a ________________ distribution
A) negatively skewed B) positively skewed C) normal D) biased