If you discover a near zero correlation between some firefighters' aptitude test scores and their actual performance on the job, you can conclude that the test is

People who have problems reading may suffer from a disorder known as

a. aphasia. b. agrammatism. c. dyslexia. d. Wernicke's aphasia. e. Broca's dysphasia.

Steven is an abused four-year-old child. Which of the following is LEAST likely to be a contributor to his situation?

a) Steven is a child who is fussy, resistant to control, and not readily adaptable to new situations. b) Steven's parents have a history of violence and marital conflict. c) Steven is not yet potty trained. d) Steven lives with a single parent in poverty.