Dr. Jamil wants to study the effects of poverty on one's self concept. To do this he interviews a group of subjects from the inner city once every five years for a period of 30 years. This experiment is an example of what type-of study?
Correct answer: D. longitudinal study
- A. Correlational study
- B. cross sectional study
- C. Gesell's dome
- D. longitudinal study
Explanation
A longitudinal study follows the same group over an extended period, allowing researchers to observe change across 30 years. A cross-sectional study would compare different age or groups at one point in time.
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