Methods in Experimental Psychology |
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alpha level analysis of behavior analysis of variance anova arithmetic mean assigned baseline called causal Chapter completely randomized design computational control group controlling variables correlational designs degrees of freedom demand characteristics dependent detect discussed distribution effects equal estimate example experiment experimental analysis experimental control experimental design experimental method experimental psychology factorial design Figure formula functional relationship given identify important independent variable indicate influence interaction investigator large number Levels of Measurement logarithms manipulated mean ment null hypothesis number of levels number of scores number of subjects observed obtained occur one-tailed outcome pairwise comparisons percent population possible predict probability problem procedures random numbers ratio rats reinforcement reliability replication represented responses sample scale scientific selected standard deviation statistical tests subtract sum of squares systematic theory tion treatment condition type I error various vary verbal reports z statistic ΣΧ