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A researcher wants to investigate the relationship between smoking and lung cancer. It would be unethical to conduct an experiment where participants are asked to smoke. Instead, the researcher can use an ex post facto design to compare the incidence of lung cancer among smokers and non-smokers.
- Ex Post Facto Design
The ex post facto design is a type of research design used...
- Ex Post Facto Design
21 lis 2023 · Ex post facto design is a quasi-experimental study examining how an independent variable, present prior to the study in the participants, affects a dependent variable.
The ex post facto design is a type of research design used in social sciences where the researcher observes and analyzes the effects of an independent variable that has already occurred or been manipulated, without being able to control or manipulate the independent variable themselves.
carefully compare three common approaches to answering the same research question and review their advantages and disadvantages. We’ll look at a correlational approach, an ex post facto study, and an experimental approach. Remember Alexis’ research question “Does caffeine enhance mental performance?”
Ex post facto study or after-the-fact research is a category of research design in which the investigation starts after the fact has occurred without interference from the researcher.
Example: Individuals arrested for domestic assault tend to commit fewer subsequent assaults than similar individuals who are accused in the same circum-stances but are not arrested. More specifically, a causal effect is said to occur if variation in the independent variable is followed by variation in the dependent variable, when all other things
The only clear rule in selecting a design is that the question dictates the design. Over the next few issues this column will cover types of research designs and their inherent strengths and weaknesses. This article discusses ex post facto research.
