The same people are tested and retested over a period of years in a:

Question

Quizplus · Accepted Answer

A longitudinal study involves following the same group of individuals over a period of time and collecting data at different points. This is in contrast to a cross-sectional study, which involves analyzing different groups of individuals at a single point in time. A factor analysis involves statistical techniques used to identify underlying factors in a set of data. Standardized tests are designed to measure a specific set of skills or knowledge, but do not necessarily involve retesting over time. Therefore, the best choice based on the question is a longitudinal study.

The Same People Are Tested and Retested Over a Period