8.Dr. Moss privately worries that his subjects may have guessed his research hypothesis, but doesn’t press his subjects for information. Several of his subjects believe that they know the experiment’s purpose, but do not reveal this to Dr. Moss. What problem does this situation describe?
9.An experiment ‘s validity is threatened by ____ when subjects do not reveal all they know about the purpose of an experiment and researchers accept subject reports at face value.
a.a pact of ignorancec.experimenter biasb.confoundingd.history threatANS:APTS:1
10.Orne’s (1969) “pact of ignorance” shows how validity issues can be hard to resolve because of
11.Statistical tests permit us to
12.A well-designed experiment cannot prove that your research hypothesis is correct because there is always a chance of
13.Jack just completed a study of the effects of caffeine and rave music on recall. He is excited about finding a significant interaction and says, “This is so cool! I’ve proved my research hypothesis. Jolt cola with rave music is the way to study.” Jack’s experiment cannot prove his research hypothesis because his results could be due to
a.confounding.c.Type 2 error.b.Type 1 error.d.confounding and/or Type 1 error.