Application of Quasi-Experimental Design to the Research Question The PICOT question states: In hospitalized patients with limited mobility (P), how does the use of alternating pressure air mattresses (I) compared to no intervention (C) affect the rates of pressure ulcers (O) within six months? (T)

Application of Quasi-Experimental Design to the Research Question The PICOT question states: In hospitalized patients with limited mobility (P), how does the use of alternating pressure air mattresses (I) compared to no intervention (C) affect the rates of pressure ulcers (O) within six months? (T)

This research question has a comparison group, which are individuals who did not have an intervention to prevent pressure ulcers. Using a quasi-experimental design, a convenience sampling method can be used to ensure that only patients who are hospitalized and have limited mobility/those at higher risk of developing pressure ulcers are selected for the study.

Here, there is no random assignment of patients to the intervention group and comparator group (Maciejewski, 2020). This study might take the retrospective approach so that the comparator group is patients who received care before the initiation of the program. The non-randomized treatment of the sample and convenience sampling approach are distinct features that demonstrate how a quasi-experimental design can be applied in the research study.

References

Maciejewski, M. L. (2020). Quasi-experimental design. Biostatistics & Epidemiology, 4(1), 38-47. https://doi.org/10.1080/24709360.2018.1477468