I believe the answer is: increasing generalizability
Generalizability refers to the extend that a conclusion of a research could be applicable to different people. As generalizability goes higher, The reliability of the measurement would be increased. and it could easily be replicable even if the test subjects are drastically altered.
Answer:
Serve as commander in chief of the armed forces
Commission officers of the armed forces
Grant reprieves and pardons for federal offenses (except impeachment)
Convene Congress in special sessions
Receive ambassadors
Take care that the laws be faithfully executed
Wield the "executive power"
Appoint Cabinet officials, White House staff and Supreme Court justices
Explanation:
Mediterranean and North Atlantic I believe but I am not positive
