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fetal distress

the condition of a fetus whose life or health is threatened, most commonly by an inadequate supply of oxygen via the placenta. Signs of fetal distress include abnormal heart rate, elevated blood acidity, and absence of movement. This term has been criticized as being imprecise and nonspecific; it is recommended that the specific symptoms be described, assessed, and treated. Also called nonreassuring fetal status.

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Psychology term of the day

November 24th 2024

regression sum of squares

regression sum of squares

(symbol: SSregression) a number indicating the amount of variance in a dependent variable that can be explained by the variance in one or more associated independent variables. It thus describes how well a particular model fits the observed data. For example, in linear regression it is used to calculate a coefficient of determination or a coefficient of multiple determination, and in analysis of variance it is used to determine the total sum of squares and calculate an F ratio. Compare error sum of squares.