People of different ages are compared with one another in a ________ study.

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A cross-sectional study compares groups of people of different ages at the same point in time. This allows for the examination of age-related differences at a specific moment. A longitudinal study would follow the same group of people over a period of time, while a social clock relates to how individuals perceive and respond to societal expectations at certain ages. Terminal decline refers to the accelerated decline in cognitive and physical function before death.

People of Different Ages Are Compared with One Another in a ________