PSYC 3P30 Lecture 8: LECTURE 8 Experimentation.docx

• School: Brock University
• Department: Psychology
• Course: PSYC 3P30
• Professor: Nicole Nelson

Document Summary

Must have different levels or conditions for the independent variable: otherwise what would you compare results to using quantitative differences or qualitative differences, quantitative differences: amount of iv, qualitative/ situational difference: kind of experience sometimes we have an experimental group compared to a control group, control group: not exposed to the independent variable, can compare control group to several experimental groups some variables cant be changed, if it cant be changed, it cant be used in a true experiment to test causality (gender, age, etc. ) i. e subject variables. Eliminate all extraneous factors that might impact the results (i. e: confound: any influence or difference between groups that confounds) are not part of intended manipulation, limits ability to sort out cause and effect, attribute causality solely to manipulated iv, creates alternative explanations for the differences in measured dependent variable, complete control is unlikely; lab vs. naturalistic, good experiments control extraneous factors: experiments.