Examlex
Children with adolescent-onset CD are ____ than those with childhood-onset CD.
Double-Blind Study
A research method in which both the subjects and the researchers are unaware of which group (test or control) the subjects belong to, to prevent bias.
Experimental
Pertaining to a methodical procedure carried out with the goal of verifying, falsifying, or establishing the validity of a hypothesis.
Control Groups
Groups in an experiment that do not receive the treatment being tested, enabling comparison to groups that do receive the treatment to assess its effect.
Investigator
An individual, often a scientist or researcher, who conducts detailed and systematic examination or inquiry into something through research and experimentation.
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