Alex likes to drive faster than the speed limit. Alex's behavior of driving too fast is an example of a:

Which of the following is NOT a drawback of longitudinal studies?

a) researchers always have a biased sample b) they are time consuming c) they are expensive d) participants may drop out over time

Which of the following are not direct tests of the brain, but

are subtle outward behavioral signs of nervous system dysfunction that have been used to diagnose problems ranging from childhood learning disorders to psychosis? a. confabulations b. neurological soft signs c. neural inductions d. brain embolisms