Which of the following summarizes the debate on the contributions of genetics and environment on intelligence?

Compared to several decades ago, children today are less likely to walk to school and more likely to be involved in sedentary activities

Indicate whether the statement is true or false

Complete the following analogy: independent variable is to ________ as dependent variable is to ________

a. relationship; direction b. hypothesis; evidence c. varied; measured d. internal validity; external validity