Your Text Describes a Study in Which Researchers Played Recordings

question 149

Multiple Choice

Your text describes a study in which researchers played recordings of normal or backward speech to two-day-old babies. The researchers then measured blood flow in the babies' brains. Which of the following alternatives correctly names and labels the variables in this study?

• A) experimental variable-normal or backward speech ; control variable-blood flow
• B) experimental variable-blood flow ; control variable-normal or backward speech
• C) independent variable-normal or backward speech; dependent variable-blood flow
• D) independent variable-blood flow; dependent variable-normal or backward speech

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Definitions:

Insulin

A hormone produced by the pancreas that regulates blood glucose levels by facilitating the uptake of glucose into tissues, essential for energy production.

Melatonin

Hormone, secreted by the pineal gland, that is involved in biorhythms.

Day-Night Schedule

The daily cycle of light and darkness, influencing the behavior and physiological processes of living organisms.

Satiety

The feeling of fullness or satisfaction that signifies the end of eating, regulated by hormonal signals in response to food intake.