25. (FACTUAL-19) IF I SELECT ONE SAMPLE OF 30-YEAR-OLDS AND FOLLOW T...

1-25. (factual-19) If I select one sample of 30-year-olds and follow them over a decade,

interviewing or testing them repeatedly, this would be an example of what kind of

research design?

a. cross-sectional

b. sequential

*c. longitudinal

d. correlational