A researcher studies the cognitive development of a single group of children by measuring them in kindergarten, fourth grade, and seventh grade. Which type of design is being used?
a. Longitudinal
b. Cross-sectional
c. Participatory
d. Developmental
Question 2
Research that uses two groups of individuals, one of which has had and one of which has not had the experience, is known as which of the following?
a. A comparison-group design
b. A before-after design
c. An A B group design
d. A selection-group design