Cross-sectional data are data collected at the same or approximately the same point in time.

Question

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Cross-sectional data are collected at one point in time or over a short period of time, allowing for comparisons to be made between individuals, groups, or geographic areas at that particular time. This is different from longitudinal data, which are collected from the same individuals over an extended period of time.

Cross-Sectional Data Are Data Collected at the Same or Approximately