Which one of the following statements is TRUE?
A) Despite the fact that some people write with their left hand, all humans show left-hemisphere dominance for language functions.
B) The vast majority of people are strongly right-handed, using their right hand for virtually all tasks requiring dexterity.
C) The fact that it is very easy to teach infants and young children to be left-handed strongly suggests that handedness is determined by environmental conditions, not genetics.
D) The percentage of the population that is strongly left-handed is approximately 15 to 20 percent.

Question

Quizplus · Accepted Answer

Research has shown that approximately 90% of the population is strongly right-handed and demonstrates left-hemisphere dominance for language functions. This means that statement A is false. While it is possible to teach young children to use their non-dominant hand, handedness is largely determined by genetics rather than environmental factors, making statement C false. The percentage of the population that is strongly left-handed is closer to 10%, making statement D false.

Which One of the Following Statements Is TRUE