Informed consent:

a) A study plan on which all clinical trials are based.
b) Any of the treatment groups in a randomized trial.
c) The process of learning the key facts about a clinical trial before deciding whether or not to participate.
d) A modification of the effect of the drug when administered with another drug.
e) None of the above.

Option C is correct.

Explanation:

The process of learning the key facts about a clinical trial before deciding whether or not to participate.

c) The process of learning the key facts about a clinical trial before deciding whether or not to participate.

Explanation:

Informed consent can simply be explained as a situation whereby the participants or people that have decided to take part in a clinical trial have been initially informed about the purpose, benefits and risk associated with the trial they are about get involved in.

It can also be put as the process by which a patient learns about and understands the purpose, benefits, and potential risks of a medical or surgical intervention, including clinical trials, and then agrees to receive the treatment or participate in the trial.

In conclusion, it is important that  the benefits and risks of a procedure are explained to a patient or guardian, and then they give permission for a medical procedure to take place.

It should be understood that patients have the right to either give informed consent or to refuse.

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.

answer; in the 1950s;