When a researcher collects data on at least two separate occasions, they are using a ___________________.
A) Quasi-experimental
B) Longitudinal
C) Experimental
D) Cross-sectional

Question

Quizplus · Accepted Answer

Longitudinal research involves collecting data on the same group of individuals or subjects at two or more different points in time. This allows for the study of changes over time and provides a more complete understanding of the phenomenon being studied. Quasi-experimental research involves comparing groups that are not randomly assigned, experimental research involves the manipulation of an independent variable to observe its effects on a dependent variable, and cross-sectional research involves collecting data from a single point in time from different groups or individuals.

When a Researcher Collects Data on at Least Two Separate