The Emergence of Self-Recognition Is Sometimes Studied Using the Red

question 28

Multiple Choice

The emergence of self-recognition is sometimes studied using the red dot test in which a red dot is placed on a child's forehead or nose. The child is then placed in front of a mirror. If the child touches his or her nose rather than pointing at the mirror or looking behind it for someone, then self-recognition is inferred. A developmental psychologist conducts the red dot test by using a sample of 15 one-month-old babies and another sample of 18 month-old babies. What type of test was employed?

• A) z-test
• B) one-sample t test
• C) independent samples t test
• D) repeated measures t test

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Definitions:

Stomach Acidity

The concentration of hydrochloric acid in the stomach, aiding in digestion and protecting against pathogens.

Pepsin

An enzyme produced in the stomach that breaks down proteins into peptides.

Peptic Ulcers

A condition characterized by sores or lesions forming on the lining of the stomach or the first part of the small intestine, typically as a result of inflammation caused by the bacteria H. pylori, or the use of nonsteroidal anti-inflammatory drugs (NSAIDs).

Chemical Digestion

The breakdown of complex food molecules into simpler ones through chemical reactions, facilitated by enzymes, in the digestive system.