Certificate In Psychology (CPSY) Practice Exam

During the first year of life, most healthy babies typically gain about how many pounds and inches?

1. 13 pounds; 15 inches.

2. 18 pounds; 15 inches.

3. 23 pounds; 10 inches.

4. 13 pounds; 10 inches.

The correct answer is: 13 pounds; 15 inches.

During the first year of life, healthy babies generally have significant growth in both weight and height. The average weight gain for a healthy infant during their first year is approximately 13 pounds. By the end of the first year, a typical baby weighs about three times their birth weight. In terms of height, a healthy baby generally grows about 10 inches during this period. This height increase is substantial as infants typically grow rapidly in their first several months. By the end of the first year, infants often reach around 30 inches in length. Thus, the response indicating 13 pounds for weight gain and 15 inches for length is approximately correct in the context of average growth patterns, recognizing that the height figure may reflect regular variations. Overall, the growth statistics provided in the correct answer align closely with standard developmental guidelines for infants in their first year.