PSYC3301 Lecture Notes - Lecture 3: Scatter Plot, Kurtosis, Pearson Product-Moment Correlation Coefficient
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Manova is an alternative to repeated measures anova- use if sphericity has been violated. 4 or more means- must use bonferroni correction can no longer use fishers lsd. Trend analyses- avoid conducting a large number of analyses on the sample of data as it reduces power. Tre(cid:374)d a(cid:374)al(cid:455)sis is a good alter(cid:374)ati(cid:448)e for a (cid:449)ithi(cid:374) su(cid:271)je(cid:272)t"s anova. 2 common patterns of trend analysis- linear or quadratic trend term is used in context of within subjects contrast is used in context of between subjects. Control groups- a group of participants who do not receive any treatment but who are otherwise similar in nature to the treatment group. Comparison group- a group of participants who receive a competing treatment who are otherwise similar in nature to the treatment group- some are not competing treatments, could be placebo. Random sampling- ensures that each case in the population has an equal chance of being picked.
