Exhibit 2-3: in a Study Designed to Investigate the Effect

question 12

Multiple Choice

Exhibit 2-3: In a study designed to investigate the effect of self-recitation on recall, an investigator asked two groups of 10-year-olds to memorize a number of statements.The subjects of Group I were told to read the statements repeatedly.The subjects of Group II were told to read the statements repeatedly and also to spend some of their time to test their recall by self-recitation.Later, both groups were given a test of memory for the statements.Statistical analysis of the scores showed that the subjects of Group II obtained significantly higher scores than those of Group I.
-Refer to Exhibit 2-3.The memory test scores in this study were

• A) the dependent variable.
• B) the independent variable.
• C) a constant.

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Definitions:

Heat-Regulating Mechanism

The biological system that maintains the body's internal temperature within a safe range, regardless of external conditions.

Subcutaneous Fat

A layer of fat located under the skin, serving as insulation and energy storage.

Room Temperature

The ambient temperature of a room, typically considered to be between 20°C and 22°C (68°F and 72°F).

Muscle Mass

The total weight or volume of muscle in an individual's body, often associated with strength, athletic performance, and health.