What was the response after the massive flood along the Mississippi River in 1927? Authorities decided that the flood was unlikely to happen again and did nothing.
O Local authorities added dams, diversion canals, and reservoirs to the levee system.
O The federal government mandated a permanent evacuation of flood zones along the river.
O The state converted the flooded area to preserved wetlands to avoid future problems.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

it should be d or b but i'm sure it's d

answer; role- taking;

answer; participants attitudes about gun control;