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garri49 [273]
3 years ago
14

Dr. Dawson is conducting a study with military veterans from the Vietnam and Gulf wars. He plans to evaluate them every year for

10 years to see if those with PTSD have a more pronounced decline in mental abilities and overall memory. This is a(n) ________ study.
a) longitudinal
b) experimental
c) cross-sectional
d) chronological
Social Studies
1 answer:
cupoosta [38]3 years ago
5 0

Answer:

a) longitudinal

Explanation:

  • Studies can be observational (when no intervention happens) or experimental (when a variable is manipulated, an experiment is conducted).
  • Observational studies, based on time, are classified as longitudinal or cross-sectional.
  1. Longitudinal studies follow the same group of people during a determined period of time.
  2. Cross-sectional studies are defined as "snap shots", they compare different groups of people at one specific moment of time.
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