Kristyn is a first-year college student. She decided to stay home for the first year and is struggling with getting along with her parents. She has noticed lately that her thoughts and opinions are in such contrast to her parents’. She feels strongly that if she had just gone away to school, then she would not be having such differences of opinion with them right now. Which of the following concepts could account for Kristyn’s thinking that being away at school would be so much better for her?