Five-year-old Timmy runs into his parents' room crying that there is a monster under his bed. His mother goes to check and finds Timmy's toy bear half way under the bed. Timmy's perception of a monster has been affected by his ________

A __________ procedure in an experimental investigation ensures that neither the researcher nor the subjects will know about what conditions are being administered to the participants

a. placebo b. Hawthorne Effect c. double-blind d. randomization

Any device, such as a wire, needle, or metal plate, used to electrically stimulate or destroy nerve tissue or to record its activity is called a(n)

a. electrode. b. inductor. c. neuralizer. d. telemetry instrument.