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The problem under research considers which experimental design is more efficient

by | Aug 31, 2022 | Healthcare | 0 comments

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The problem under research considers which experimental design is more efficient in studying the effects of two treatments of pressure ulcers; a standardized treatment compared to a lavage. The purpose of such a study would to be to determine which group was most effective in treatment and apply that method in the clinical field thereby improving patient outcomes. One hypothesis may sound like: Given research in wound care medicine on lavages, it is suspected that lavage in addition to standard care, results in quicker healing time of stage 2-3 pressure ulcers than standard care alone. The interventions of this experiment include the lavage system. The intervention, or treatment, is also known as the independent variable. The dependent variable of this situation being the exact amount of time it takes to heal the ulcer following intervention of the independent variable. A conceptual framework that describes this is the lavage (independent variable), healing time (dependent variable), the health of the patient (mediator), and the severity of the wound (moderator).
The research design best suited for this study is an experimental two group RCT with pretest/posttest design and structurally equivalent comparison group (Melnyk & Fineout, 2019). This is the best design for this experiment because it shows the comparison of a control group (being the standard care) and a treatment group in the pretest phase then compares treatments in a posttest phase. This format is comparable in another study on osteoarthritis (OA), where a two group pretest/ posttest group is used to determine if a new treatment of therapeutic exercises in conjunction with standard OA treatment was more effective in treating OA than standard exercises alone (Veena et al., 2018). In addition, while an RCT design may take longer and be more expensive than other designs, this method may be more effective than other methods like quasi-experimental designs because it involves randomization which improves data during collection (Miller et al., 2020).
Melnyk, B. M., & Fineout-Overholt, E. (2019). Evidence-based practice in Nursing & Healthcare: A guide to best practice. Wolters Kluwer.
Miller, C. J., Smith, S. N., & Pugatch, M. (2020). Experimental and quasi-experimental designs in implementation research. Psychiatry Research, 283.
Veena Kirthika, S Sudhakar, K Padmanabhan, S Ramachandran, & Mohan Kumar. (2018). Efficacy of combined proprioceptive exercises and conventional physiotherapy in patients with knee osteoarthritis: A double-blinded two-group pretest–posttest design. Journal of Orthopedics, Traumatology and Rehabilitation, 10(2), 94–97.

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