| regression |
1. a return to a former or earlier state. 2. a subsidence of symptoms or of a disease process. 3. in biology, the tendency in successive generations toward the mean; see Galton's law of regression, under law. 4. a return to earlier, especially to infantile, patterns of thought or behavior, a characteristic of many mental disorders also exhibited by normal persons in many situations, e.g., feelings of helplessness and dependency in a patient with a serious physical illness. 5. a functional relationship between the mean value of a random variable and the corresponding values of one or more variables identified by the experimenter (the independent variables).
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| regression a. |
interpretation of a finite population of data by exploring the relationship between several variables using the principle of regression; see regression (def. 5).
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| regression c. |
a curve describing the relation between the average value of one variable (the dependent variable) and the values of one or more independent variables; the regression curve of Y on X is the graph of the average value of Y associated with each value of X.
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| regression l. |
a regression curve that is a straight line, indicating that two variables are in a simple direct or inverse arithmetic relationship. See also regression (def. 5).
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| regressive i. |
reversion to an infantile state after body growth has been completed.
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