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Mathematics, 14.02.2020 20:28 keyairareid7

Cindy is studying cognitive development during adulthood. She administers several memory and problem-solving tasks to a group of 20-year-olds, a group of 40-year-olds, and a group of 70-year-olds. Cindy is using a research design.

1. cross-sequential
2. cross-sectional
3. simultaneous
4. longitudinal

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