Which of the following has NOT been found to influence IQ scores?

Which of the following is an implication of Binet's concept of general mental ability?

a. Individual items that do not correlate well with the total score can be eliminated. b. A broad range of diverse items must be included. c. Variability in the ability to perform specific skills should be minimal. d. Those who are high in general mental ability will also be high in specific mental abilities.

One way to detect dishonest responses on a questionnaire is to use

a. a Likert scale b. closed ended questions c. the randomized response method d. a verification key