Which of the Following Statements Is True of Obsessive-Compulsive Disorder

question 33

Multiple Choice

Which of the following statements is true of obsessive-compulsive disorder (OCD) ?

• A) OCD symptoms are dissimilar across different cultures.
• B) Family studies suggest an association between OCD and Parkinson's syndrome.
• C) PET scans have shown decreased activity in the frontal lobes of OCD patients.
• D) OCD is much more common in women than in men.
• E) OCD is characterized by counting, checking, and cleaning rituals.

---

Definitions:

Multiple Regression Model

A statistical technique that models the relationship between a dependent variable and two or more independent variables.

Independent Variable

The variable in an experiment or study that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Dependent Variable

The variable in an experiment or study that is expected to change as a result of manipulations of the independent variable.

Coefficient of Determination

A measure used in statistical models that defines the proportion of the variance in the dependent variable that is predictable from the independent variable(s).