A researcher has conducted a study on logical reasoning using a sample of college freshmen and is concerned that the results of the study may not accurately depict the logical reasoning of college seniors. The researcher's concern can be described as a concern about the of the study results.

a. generalizability
b. replication
c. accuracy
d. design

The correct answer is letter A

When generalizing, she/he attributes to a group of things that belong to the same genre something that is already known by some of its individuals, in the abstracts of particular details or of the typical exceptions of the case. For example, in general, we still have good weather during the fall.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."