A prospective research design attempts to collect information about the early lives of people with a

The Grant Study is a 68-year longitudinal study of two socially different groups of people:

237 physically and mentally healthy Harvard college sophomores from the classes of 1939-1944, and a second group of 332 disadvantaged, non-delinquent, inner-city youths who grew up in Boston neighborhoods between 1940 and 1945. Which term below best describes these two groups of individuals? a) Cliques b) Cohorts c) Optimal age groups d) Connectionist clusters

When does language development have its most rapid and important advances?

a. infancy b. toddlerhood c. early childhood d. adolescence