An Experiment Was Designed to Test the Effects of Rehearsal

question 32

Multiple Choice

An experiment was designed to test the effects of rehearsal on memory. In order to hold the extraneous variable "time of day" constant, the experimenter decides to run two groups simultaneously. The rehearsal group is given the instructions live and the other non-rehearsal group sees the same instructions in the next room via closed-circuit television. Live-versus- television is

• A) an extraneous variable, but not a confounding variable.
• B) a confounding variable, but not an extraneous variable.
• C) neither an extraneous nor a confounding variable.
• D) both an extraneous and a confounding variable.

---

Definitions:

Foreign Trade

The exchange of goods and services between countries.

Economic Output

The total value of all goods and services produced by an economy over a specified period of time.

Less Important

Referring to something that holds lesser value or priority in comparison to other items or factors under consideration.

United States

A country located primarily in North America, consisting of 50 states and a federal district.