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

question 46

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. She tests them again at 18 months of age. 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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