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radiculopathy

n. any disorder of a spinal root. Radiculopathies are often due to vertebrae compressing the nerve roots, as in the condition popularly known as slipped disk.

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Psychology term of the day

November 22nd 2024

population variance

population variance

(symbol: σ2) the square of the population standard deviation. It is a measure reflecting the spread (dispersion) of scores in a complete population of interest (e.g., the test scores of all students at a school).