Soldiers who break down in the battlefield often cope with their situation by blocking out all memories of their behavior and their situation. This is a type of ______

Delta activity is to __________ as alpha activity is to __________.

A. REM sleep; being awake B. being awake; slow-wave sleep C. REM sleep; slow-wave sleep D. slow-wave sleep; being awake

Which of the following personnel selection methods is most costly to use in assessing candidates for employment?

a. letters of recommendation b. assessment center c. interview d. intelligence test