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goodness of fit

the degree to which values predicted by a model agree with empirically observed values. For example, a researcher may wish to assess whether a pattern of frequencies from a study is the same as theoretically expected, whether two categorical variables are independent, or whether a regression equation correctly predicts obtained data. A small, nonsignificant value from a statistical goodness-of-fit test indicates a well-fitting model.

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Psychology term of the day

May 20th 2024



n. the state of having an abnormally low body temperature. It can be caused by absence of normal reflexes such as shivering, sometimes associated with disease or a disorder of the brain, or by exposure to extreme cold. Accidental hypothermia is most likely to affect older people, who are less able to cope with the cooling effect of environmental temperatures in the winter months. Symptoms include listlessness, drowsiness, apathy, and indifference to progressive frostbite, progressing (if untreated) to coma and death. See also induced hypothermia. —hypothermic adj.