PSYC 3000 Midterm: Cheat Sheet (Midterm #2)

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(e23 is the deviation). mean, and the deviation from the treatment mean. ** this means the value of observation xi2 is made up of a part that is due to the effect, m2, of being exposed to treatment 2 plus an error term,e23, that cannot be specified precisely . Each observation in the population gets a similar description . In general, we can describe the observed value of the dependent variable for any participant in the design in the following way . *the xji vary from one to another in anova this is called the total variation between measurements. *the structural model splits this total variation into different sources of variation in this case variation due to treatment and variation due to error. (x=total, The jth treatment effect is often given the name tj and so we can write the structural equation as . This gives us the formula for the structural model.