In a Study Designed to Test a New Antidepressant, a Large

question 184

Multiple Choice

In a study designed to test a new antidepressant, a large number of outpatient psychiatric patients were randomly assigned to one of two groups. One of the groups was given the drug as a pill. The other group was given identical-looking inert pills. All participants were tested in the morning. The level of depression of each subject was measured by three psychologists independently, using the Beck Depression Inventory. Which was the independent variable in this study?

• A) the drug
• B) the level of agitation
• C) the Beck Depression Inventory
• D) the assignment of the participants to groups

---

Definitions:

Analyzability

The degree to which problems and tasks can be understood and solved through logical analysis and clear procedures.

Decentralization

The process of distributing power, authority, or tasks from a central point or authority to multiple locations or individuals.

Integrated Market

A market wherein various components such as goods, services, and participants are fully interconnected and function smoothly across borders.

Hostile Environments

Working or living conditions that are unwelcoming, intimidating, or unpleasant, often due to harassment or discrimination.