Controversy Over Polygraph Testing Validity

http://www.fas.org/sgp/othergov/polygraph/ota/contro.html

There is controversy concerning the construct validity of the polygraph. This article reviews the controversy from one perspective. Apply your knowledge of construct validity to this example. According to this author, why is there a controversy?

Test Reliability

http://www.ericdigests.org/2002-2/reliability.htm

This ERIC Digest discusses reliability, including sources of error, several approaches toward estimating reliability, and several ways to increase test reliability. Review the information and describe how test reliability can be increased.