Esther Has Been Studying for a University Entrance Exam and Worrying

question 30

Multiple Choice

Esther has been studying for a university entrance exam and worrying about doing badly for over two months.She carries vocabulary flash cards and sheets of math problems everywhere.She has not been sleeping well,and this morning she felt a bad cold coming on.Esther is apparently being affected by

• A)unrealistic expectations.
• B)"senior-itis."
• C)chronic stress.
• D)hypochondria.

---

Definitions:

Independent Variables

Variables in an experiment or model that are manipulated or categorized to determine their effect on a dependent variable.

Multicollinearity

A statistical phenomenon where several independent variables in a model are correlated, impacting the model’s accuracy.

Dependent Variables

Variables in an experiment or model that are expected to change as a result of changes in the independent variables.

Multicollinearity

A situation in multiple regression where one predictor variable in the model can be linearly predicted from the others with a substantial degree of accuracy.