Sandra is informed by a pediatrician that her four-year-old son, Manuel, has gained six pounds over the last one year. Sandra should

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.

no the answer is c only objects touching the earth's surface can be acted upon by an outside force

50% i think

explanation:

answer; implicit memories explicit;