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1. the slope of a line or surface.

2. a measure of the change of a physical quantity (e.g., temperature).

3. in motivational psychology, a graduated change in the strength of a drive resulting from a change in the environment, such as time interval, distance from a situation, and degree of conflict. See also approach gradient; avoidance gradient.

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Psychology term of the day

May 25th 2024




1. the practice of taking committed action to achieve an end, particularly as it relates to a political or social goal. See also community action group; social action program.

2. in philosophy, the doctrine that any relationship between thought and reality is characterized by continuous activity on the part of the mind, rather than passive receptivity. —activist adj., n.