Psychology 1000 Lecture 2: psych 1000 - lecture 2

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Nick Skinner

Document Summary

* fact of experimental control, whatever happens in the experiment happens because of the experimenter (they are in control of the situation/environment). 39 of textbook: operational definition> when we define something operational we define it in terms of how we measure it. We can control conditions that may give misleading results. * experimental effects (page 55) unintended changes in participants" (cid:271)eha(cid:448)ior (cid:272)aused (cid:271)y the resear(cid:272)her unintentionally body language. * demand characteristics, experimenters might unintentionally express the hypothesis to participants. * double blind technique- the experimenter and participant are both blind while conducting the experiment so that neither of them know the nature of the hypothesis. * expectation effects example: give people a drink and tell them that they will get hammered and see how many people act drunk because they expected to be drunk and vice versa. * placebo effect pill with no active ingredient and it improved memory because of previous expectations.