PSY 310 Lecture Notes - Lecture 2: Dependent And Independent Variables, Scientific Method, Room Temperature
31 Aug 2016
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Confirmation of findings: repeat experiments to confirm their original results. Self-correction: public scrutiny, replication can chance views of phenomena. Control: of unwanted (extraneous) variables that could influence the results of a research project. Experiment: used to determine cause and effect relationships. One level (iv) result 1 (dv) or result 3 (dv) Another level (iv) result 2 (dv) or result 3 (dv) Extraneous variable (ev): undesired variables that may operate to influence the dependent variable and thus invalidate an experiment. To the extent that extraneous variables are controlled the cause-and0effect relationship between the iv and the dv becomes more convincing. One level (iv) + one level (ev) result 1 (dv) or result 3 (dv) Another level (iv) + another level (ev) result 2 (dv) or result 3 (dv) Variable: any event, situation, behavior, or individual characteristic that varies- that is, has at least two values. Independent variable (iv): what the experimenter directly manipulates to determine its influence on behavior.
