Examlex
The study of the cause of disease is known as (epidemiology/etiology/pathology).
Mean Difference
Mean difference, also known as the average difference, refers to the arithmetic mean of differences between paired observations in two sample sets.
Same Individuals
Referring to using the same group of subjects or samples in different conditions or periods of a study or experiment.
Matched Pairs
A study design in which subjects are paired based on certain characteristics, with one subject from each pair receiving each treatment.
Parameter
A numerical characteristic or measure of a population, such as its mean or variance, which is often estimated using sample data.
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