Within their first year of life, babies have problems walking and performing other physical acts because the __________ of many neurons are not fully developed

When you estimate a distance under 50 feet (as when you approach a stop sign or play catch), you are using

a. convergence. b. accommodation. c. retinal disparity. d. relative size.

A track coach asks half of the athletes, chosen randomly, to try wearing a new type of shoe. Later the coach compares results for those wearing the new and old shoe types. What is the dependent variable in this experiment?

a. The type of shoe b. The athletes' performances c. Variations in the weather d. The track coach