Why would a nurse researcher opt for a quasiexperimental study design instead of an experimental study design?

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A nurse researcher may opt for a quasiexperimental study design instead of an experimental study design when full experimental control is not possible due to ethical, logistical, or practical reasons, such as when the subjects cannot be randomly assigned to conditions, when the intervention is not feasible or ethical, or when the setting is not controlled enough. A quasiexperimental design allows the researcher to compare groups that differ on some variable of interest but cannot be manipulated, while holding constant other variables that may affect the outcome. While a laboratory setting may be a reason to use an experimental design, it is not a sufficient or necessary condition. Lack of research experience is not a reason to choose a quasiexperimental design, although it may affect the quality of the study.

Why Would a Nurse Researcher Opt for a Quasiexperimental Study