121. The leading cause of deaths in infants between the ages of 1 month and 1 year of age in the United States is: a. shaken baby syndrome b. protein deficiency c. respiratory problems d. sudden infant death syndrome 122. The text notes that the rate of infant deaths from sudden infant death syndrome is higher in the winter months than the summer months, suggesting that SIDS may be the result of: a. problems in regulating body temperature among vulnerable infants b. infections c. child abuse, which is also higher during winter months d. a genetic defect 123.  According to the text, if your goal were to minimize the risk of sudden infant death syndrome, you would advise caregivers to put their infants to sleep in which of the following positions? a. on their stomach b. on their back c. on their right side d. propped in a slightly “sitting up†position with the head elevated above the feet 12  The most severe effects from shaken baby syndrome typically result from injury to: a. the spinal cord b. the brain c. the lungs d. the heart 125.  The text describes a study in which infants were shown pictures of several different horses. Then they were shown a picture of a different horse and a picture of a different animal, such as a giraffe. What were the results of this study? a. The infants learned the word “horse†faster than they learned the word “giraffe.†b. The infants learned the word “giraffe†faster than they learned the word “horse.†c. The infants looked longer at the picture of the horse than the picture of the giraffe. d. The infants looked longer at the picture of the giraffe than the picture of the horse. 126. The text describes a study in which infants were shown pictures of several different horses. Then they were shown a picture of a horse and a picture of a different animal, such as a giraffe. What research technique did this study employ to determine how infants learn to categorize objects? a. classical conditioning b. reinforcement c. habituation d. punishment 127. An experiment was described in the text in which English and Korean babies and adults learned to distinguish between a “loose-fitting†and a “tight-fitting†cylinder and between cylinders that were placed “inside†or “on top of†each other. The results of this study were that: a. adults learned both distinctions much faster than babies learned them b. babies learned both distinctions much faster than adults learned them c. English-speaking adults learned the unfamiliar “loose-fitting†versus “tight-fitting†distinction more easily than babies d. babies from both cultures learned the “loose-fitting†versus “tight-fitting†distinction more easily than English-speaking adults who were unfamiliar with this distinction