Maribeth was nervous about her presentation but left the house feeling confident after her husband reminded her that she was totally prepared and more than ready to give a great presentation. in other words, because someone else thought highly of her abilities, maribeth felt more positive about herself. concept explains this situation.

Looking glass self concept

Explanation:

According to Cooley, individuals develop their concept of self by observing how they are perceived by others. This is known as the Looking glass self concept. Maribeth was encauraged by her husbands words, and it was the way he perceived her which ultimately gave her confidence to go over her presentation even though at first she was nervous. Individuals use the judgments they receive from others to measure their own worth, values, and behavior

answer: this is easy, i found "it"

i will repeat the question again, "find it."

here, i located it.