Experimental and longitudinal research methods are generally low-cost and easy to conduct.

B. False

Experimental and longitudinal research methods can often be complex and resource-intensive. Experimental research typically requires careful control of variables and may involve costs associated with materials, equipment, or participant recruitment. Longitudinal studies, which track the same participants over time, also require sustained funding and effort to follow up with participants, making them more costly and difficult to conduct compared to some other research methods.