PSYC 2400 Lecture : Forensic Class 3.odt

• School: Carleton University
• Department: Psychology
• Course: PSYC 2400
• Professor: Kevin Nunes

Document Summary

Internal validity: the extent to which the independent variable, rather than extraneous influences influences can account for the results , can account for the results, changes, or group differences. (if your testing what you think you are testing) External validity: the extent to which the results can be generalized or extended to persons, settings times measures and settings, times, measures, and characteristics other than those in this particular study. (generalize to the population) Ginton, a. , daie, n. , elaad, e. , & ben-shakhar, g. (1982). A method method for evaluating the use for evaluating the use of the polygraph in a real-life situation. Purpose: examine the accuracy of the comparison question polygraph test in a realistic situation. 21 males serving in the israeli police taking a police course. Participants completed paper-and pencil tests presented as aptitude tests as part of the police course: hidden chemical page under answer sheet, answer sheet returned to participants to score their own tests.