For testing the null hypothesis that mu is less than or equal to 500, using a normal sampling distribution, the rejection region is in the lower tail of the sampling distribution.

Early on in an individual test administration, the tester must

a) establish rapport b) arouse subject interest c) defuse subject anxiety d) all of the above

The 2002 version of the APA Code of Ethics directs psychologists who administer tests to

a. utilize tests that are written in English. b. interpret results in a standardized, objective fashion. c. use instruments with established validity and reliability for use with members of the population being tested. d. use instruments that have validity and reliability in studies using representative samples of the general population.