PSYC 230 Lecture 18: Choosing the right experimental design
22 Jan 2020
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A design with one and only independent variable. One independent variable (only one experimental manipulation) and this variable has only two levels. Usually an experimental group and a control one (no treatment) but not always. Single independent variable which may take 3,4, or more levels. In theory, you can do as many levels as you can handle. Designs that contain two or more independent variable that are completely crossed. (=every level of every independent variable appears in combination with every level of every other independent variable. How many independent variables exist in the design. How many levels of each independent variable exist in the design. Cells - number of unique conditions in the study. Why are crazy complex designs (2x2x2x2 ) not very popular. Addresses whether maternal diet affects pa learning. Address whether age is related to pa learning. Addresses whether the effects of the maternal diet depend on the age of the offspring.
