Experimental Psychology |
Common terms and phrases
able actually analysis of variance animals antecedent conditions approach behavior between-subjects design chance changes chapter cola confounding control condition control group counterbalancing critical value cues degrees of freedom demand characteristics dent variable dependent different treatment conditions discussed distribution estimates ethical evaluate ex post facto example experimental group experimental manipulation experimenter bias explain extraneous variables factorial design factorial experiment factors Figure groups of subjects independent groups design independent variable interaction internally valid jects laboratory learning level of measurement look lucid dreams main effect matched groups measure ment naturalistic observation nonprobability samples null hypothesis number of subjects operational definitions order effects outcome pendent variable population possible predictions problem procedures progressive error psychology random assignment randomly reject the null relationship scores selected significance level small N design statistical tests subject variables Table tions treatment groups Type 2 error vari within-subjects design X₁