PSYB01H3 Chapter Notes - Chapter 8: Interrupted Time Series, Random Assignment, Quasi
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Randomization allows us to label single and multifactorial experiments as true. Independent variables like gender, race, age, ethnicity are some examples that can"t be directly manipulated so the experimenter selects participants with these characteristics or participants who have been exposed to specified events or living in certain geographic locations. When this occurs the experimenter is interested in studying the effects of these subject variables on a dependent measure. When exposures to events, situations or settings that emanate from the real world defined hw participants are selected, it is called natural treatment. The subject variables and natural treatments belong to a distinct clss of independent variables termed quasi-independent. Quasi-experiment is one that investigates the effects of quasi-independent variable on a dependent variable. Quasi meaning as if or to a degree. It resembles a true experiment except for the degree to which an experimenter can directly control and manipulate one or more of the independent variables.
