Doctors Chase and Sanborn Are Conducting an Experiment on the Effects

question 128

Multiple Choice

Doctors Chase and Sanborn are conducting an experiment on the effects of caffeine on memory.Participants are randomly assigned to a caffeine or a no-caffeine group; their recall of items on a word list is later assessed.Which pair below correctly names and identifies the variables in this experiment?

• A)Word recall-control variable; caffeine-experimental variable
• B)Word recall-independent variable; caffeine-dependent variable
• C)Word recall-dependent variable; caffeine-independent variable
• D)Word recall-experimental variable; caffeine-control variable

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Definitions:

Intestinal Phase

A phase of gastric secretion that begins when food enters the small intestine, triggering hormones that influence digestive processes.

Duodenal Gland

Small gland that opens into the base of intestinal glands; secretes a mucoid alkaline substance.

Duodenal Mucosa

The lining of the duodenum, which contains cells responsible for the secretion of enzymes necessary for digestion.

Acidic Chyme

The partially digested, acidic food that passes from the stomach to the small intestine.