Using informant ratings can lead to biased personality scores, specifically providing unrealistically positive assessments. this is because of the effect where informants are usually individuals who like the person they are rating and therefore are motivated to depict them in a socially desirable way.

The correct answer is: Letter of recommendation.

Explanation:

The letter of recommendation effect can be understood as the tendency that individuals have to provide biased positive assessments of someone being evaluated mainly because they know and like the person.

So they perceive them as being more responsible, conscientious and less neurotic which in turns results in providing unrealistically positive assessments.

When people like another person they tend to unconsiously exaggerate their positive traits and minimize the negative ones. In informant ratings this is called the Letter of recommendation effect.

send them to therapy or somthing like that

answer; deviation iq; //(a)