Examlex
When it comes to the effects of aging on learning and memory, there are many individual differences, or "heterogeneity."
Association
A statistical relationship between two or more variables.
Age Group
A division of populations based on age, used in statistical analysis to compare different demographic segments.
Frequency
The rate at which a repeated event happens in a given unit of time or space.
Null Hypothesis
a statistical hypothesis that assumes no effect or no difference between phenomena or populations.
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