A research method in which groups of participants of different chronological ages are observed and compared at a given time.

a trial and error model wherein people of carrying ages or growth stages are compared to one another.

The cross-sectional design of full roadway right-of-way, including the roadway itself, median and shoulders, sidewalks and bike lanes, drainage and side slopes, and other components, and reflecting to [..]

A technique used for studying developmental factors e.g. by studying a number of groups of children of differing ages (and thus at different stages of development) at the same point in time.

One of two possible designs considered to be developmental or time sequence designs. In this design, the researcher identifies representative samples of individuals at the specific age or time interval levels of interest and then measures them on the dependent variable at only one point in time.