Dr Swartzman Wants to Know If Children Who Are Raised

Multiple Choice

Dr. Swartzman wants to know if children who are raised in lower socioeconomic environments have more difficulty succeeding in school as they grow up. He enlists a group of 4-year-old children and their parents, and he observes these kids in school twice a year until they turn 18. Dr. Swartzman's study would be best described as

A) cross-sectional.
B) longitudinal.
C) sequential.
D) correlational