Darryl and Darlene have a 3-year-old daughter, and they are curious about her brain development in early childhood. Describe to them the major brain developments that happen in early childhood.
What will be an ideal response?
The ideal answer should include:
1. Synaptic density reaches a peak at 2 to 3 years of age in language areas of the brain, and around age 3½ in prefrontal areas. Children have up to 50 percent more synapses than adults in these areas of the brain at this time.
2. Complexity and efficiency of neural networks improve due to growth of dendrites and white matter pathways.
3. Gray matter and white matter volume grow slowly and steadily after age 2.
4. The brains of preschoolers use more glucose than that of adults.
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Which of the following is the appropriate sequence for classically conditioning an eyeblink response to an auditory stimulus?
a. deliver a puff of air to the eyelid, sound the tone b. sound the tone, deliver a puff of air to the eyelid c. follow the eyeblink response with a mild shock d. follow the eyeblink response with a soft drink
Which of the following statements about surveys is most accurate?
A) Although surveys of the general population are useful, it can be valuable to target a particular, smaller population to better understand that group. B) Surveys that apply to broader populations are superior to surveys targeting groups. C) Large-scale surveys are better suited for testing questions about smaller groups in America. D) No survey method is better than any others; decisions of the size and scope of a survey typically reflect the biases of the researcher or the availability of funding.
Elizabeth, who was born in 16th-century England, chose to be celibate. According to your book, why might Elizabeth have made this choice?
A) To free herself from the limitations imposed by marriage and motherhood B) To enable her to pursue an education by entering a religious community C) To enable her to retain her political power, because if she had married, she would have been subject to the will of her husband D) All of the above.
One value that best represents an entire data set is called the _____
a. mean b. median c. mode d. measure of central tendency