When Alex learned that the local supermarket sells chemically grown vegetables, he started buying vegetables that were sold at the organic farmers' market. In the context of changing attitudes through persuasion, Alex was influenced by .

answer; /// (culture);

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.

the above statement/question is (true);