To study the effects of age on adult memory, an investigator administers a memory test to a group of college students and then as soon as possible administers the same test to those students' parents and grandparents. The design of this study is best described as

Cross sectional

Explanation:

This is a type of observational study which analyses data from a subset of a population at a specific point in time in other to determine the prevalence of a parameters.

early settlements on the subcontinent. both the indus and the ganges rivers carried rich silt from the mountains to the plains. when the rivers flooded, the silt spread over the plains and made the soil in the river valleys fertile for farming.

should congress have the power to interpret the constitution? write a paragraph in which you argue for or against the wide application of the limplied power