Examlex
The gap between what workers with college degrees earn and what those with high school degrees earn has decreased in recent years.
Random Assignment
A selection procedure that ensures that participants are randomly placed either in the control group or in the experimental group.
Preexisting Differences
Variations in characteristics, conditions, or experiences among subjects before the onset of a study or intervention, potentially influencing outcomes.
Control Group
A group in an experiment or study that does not receive the experimental treatment and is used as a benchmark to measure how the other tested groups perform.
Clinically Significant
Describing a result, finding, or change that is large enough to matter clinically, indicating meaningful implications for a patient's diagnosis, treatment, or prognosis.
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