Which personality assessment tool is based on the theory of Raymond Cattell?

Which of the following is an example of sensorimotor intelligence?

a. the ability to think abstractly b. the inability to take another's perspective c. crawling toward a desired parent d. the ability to represent objects mentally that are not physically present e. abstract problem-solving and logical decision-making

In an experiment, the factor controlled by the researcher (the "cause") is called the

a. dependent variable b. independent variable c. operational definition d. third variable