Examlex
This agency develops and enforces environmental standards for air, water, toxic waste, and noise.
Retests
The procedure of administering the same test multiple times to the same subjects at different points in time to measure changes or consistency.
Research Design
The framework or blueprint for conducting a scientific study, which includes the methods for collecting, analyzing, and interpreting data.
Cross-sectional Design
A research methodology that examines a population, or a representative subset, at a single point in time to make inferences about the population at that time point.
Age Differences
Variations in behaviors, abilities, experiences, or preferences that occur due to differences in individuals' ages.
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