PSYC 2001 Lecture Notes - Type I And Type Ii Errors, Statistical Inference, External Validity
19 Feb 2014
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Document Summary
Science is a method of knowledge acquisition that: addresses empirically solvable problems, uses systematic empiricism, allows its findings to be publicly verified. Experimental research designs are the pinnacle of systematic empiricism. Ability to recall 50 definitions in gravetter and forzano (2009: external validity, case study, sample. Participants who study for 4 hours will recall more definitions on a test than participants who study for 2 hours. Experimental psychologists know that it is better to have limited causal explanations, than generalizable, but vague explanations. The thing you"re going to control, vary, manipulate to see its cause on the dependent variable. The number of treatment conditions to which participants are exposed. The variable that is observed for changes in order to assess the effects of manipulating the independent variable. A procedure in which a random process is used to assign participants to treatment conditions.
