In the classic study by McGraw (1935) on the twins Johnny and Jimmy, it was found that Johnny skated at less than 1 year of age but Jimmy, who was not introduced to skating until almost a year later, never succeeded in this task.
McGraw posited that Johnny's ability in skating was a function of
A. greater readiness
B. greater recklessness
C. lower center of gravity
D. practice
Question 2
According to the American Academy of Pediatrics, children are generally not ready for swimming lessons until what age?
A. 2 years
B. 4 years
C. 6 years
D. 8 years