SOLVED

41. Generalizing from research conducted by Karen Adolph, if you observed an 8-month-old infant and a 14-month-old infant attempt a somewhat dangerous motor task (such as climbing up a stair), which of these two infants should you expect to be more cautious and more aware of the risk? a. the 8-month-old infant would be more cautious b. the 14-month-old infant would be more cautious c. These two infants would be equally cautious, but the 8-month-old would be more aware of the risks involved. d. These two infants would be equally cautious, but the 14-month-old would be more aware of the risks involved. 42. Suppose that your friend’s child is typical. If he asks you when he should expect that his child will learn to ascend and descend stairs, you should note that most children in the United States learn to crawl up stairs at about age ___ and learn to crawl down stairs at about age ___. a. 11 months; 13 months b. 13 months; 11 months c. 12 months; 12 months d. 14 months; 10 months 43. You notice that little Charlie can now use his thumb and index finger to pick up small objects like marbles and cereal flakes. This ability is called the development of: a. the pincer grasp b. the visually guided reach c. the fundamental flexion reflex d. dynamic reach 4 At about what age do most children learn to use the “pincer grasp,” which allows them to use their thumb and forefinger to “pinch” a small object to pick it up? a. 6 months of age b. 12 months of age c. 18 months of age d. 24 months of age 45. Which of the following activities would an 8-month-old be LEAST likely to be able to do? a. pick up a quarter with one hand b. point at a nearby object c. pick up a stuffed toy d. clap two hands together 46. Suppose you see a grandparent at the toy store buying a set of 5 “stacking” blocks, a box of large-size crayons, and a toy telephone. Based on this selection of toys, your best guess is that the child these toys are intended for is about how old? a. age 6 months b. age 12 months c. age 18 months d. age 24 months 47. If Emily weighed 8 pounds at birth, about how much would you expect her to weigh at age 24 months? a. 32 pounds b. 40 pounds c. 60 pounds d. 72 pounds 48. The child’s ability to categorize objects into groups that are similar (round shapes, square shapes, triangles, and so forth) begins to emerge at about what age? a. 1 year b. 18 months c. 2 years d. 3 years 49. According to the text, the two nutritional deficiencies that are most common among children in the United States are deficiencies of: a. vitamin A and vitamin D b. vitamin D and calcium c. calcium and protein d. protein and iron 50. According to research presented in the text,, about what percent of infants in low-income families in the U.S. suffer from iron deficiency anemia? a. about 1% b. 10 to 12% c. 20 to 24% d. 50 to 60%