PSYC 2018H Chapter Notes - Chapter 7: Repeated Measures Design, Random Assignment, Type I And Type Ii Errors
18 Nov 2016
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Four basic research designs can be called single factor designs, with the term factor meaning (cid:498)independent variable(cid:499) Independent variable can be tested between or within subjects. If it is tested: between it can be manipulated or a subject variable. If it is manipulated the design will be called independent group design (if random assignment is used to create equal groups) Or matched group design (if a matching procedure followed by random assignment is used) A repeated measures design is used when the independent variable is tested within subjects (each participant in the study experiences each level of the independent variable, meaning they are measured repeatedly) Any within-subjects design requires fewer participants, is more sensitive to small differences between means, and typically uses counter-balancing to control for order effects. Two determine whether the differences found between the two conditions of. Analyzing single-factor, two-level designs a single-factor, two-level design are significant or due to change, inferential statistical analysis is required.
