A researcher recruits participants for an experiment by posting an announcement in the psychology department asking for volunteers. What kind of sampling is being used?

Where in the brain is hearing associated with?

What will be an ideal response?

A meteorologist is watching the Doppler radar screen at the National Weather Service Office and notices evidence of severe rain and wind. However,

he fails to recognize a pattern of counterclockwise wind movement that might indicate a tornado and thus fails to issue a warning. Several minutes later, a town 50 miles from the office is destroyed by a tornado. In terms of signal detection theory, what type of error has been made in this example? a) true negative b) true positive c) false negative d) false positive