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
Marbury v. Madison is important because it established the power of judicial review for the U.S. Supreme Court and lower federal courts with respect to the Constitution and eventually for parallel state courts with respect to state constitutions.