There are a number of benefits to using an experimental study design. Instead, the researcher compares the outcomes of the treatment group and the control group at a single point in time. In a controlled trial, participants are randomly assigned to one of two or more groups, the treatment group and the control group, but the groups are not followed over time. In a randomized controlled trial, participants are randomly assigned to one of two or more groups, the treatment group and the control group, and then the groups are followed over time to see if there is a difference in the outcomes of interest. There are a number of different experimental study designs, but the most common are the randomized controlled trial and the controlled trial. By randomly assigning participants to groups and by carefully controlling for confounding factors, the researcher can be reasonably sure that any differences in the outcomes observed between the groups are due to the intervention or treatment and not to some other factor. In an experimental study, the researcher randomly assigns participants to one of two or more groups, the treatment group and the control group, and then measures the outcomes of interest. What Is An Experimental Study Design 8 min read Reading Time: 6 minutesĪn experimental study design is a research methodology used in scientific studies to control for potential confounding factors and to isolate the effects of a particular treatment or intervention.
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