PROVIDE AN EXAMPLE OF EXPERIMENTAL AND NON EXPERIMENTAL RESEARCH DESIGN NRS 433
Topic 3 DQ 1
Provide examples of experimental and nonexperimental research design. Contrast the levels of control applied to each.
Experimental studies are controlled studies that are true experiments. The researchers multiplate one or more variables to determine how it has an effect other variable. Researchers uses random assignment, and it is less bias. Non-experimental research design measures the statistical relationship between two or more variable, and the cause and effect of the relationship. (GCU, 2018)
Non-experimental can be a survey or observation of one or more group of subjects. This study lacks element of control and is based on calculating simple prevalence rates. For instance, observing people that has a lung injury secondary to a blunt chest trauma. This study is done by multiple cross-sectional observation which can identify changes that are happening at different time intervals and looking at different samples. (Thompson & Panacek, 2007)
Experimental is done with a control group. The subjects are explained the risk and benefits of the study and must consent to participating in it. The participant must meet the criteria of the study, for instance a study that is conducted on changing children eating behaviours. The researcher provides the children with free fruits and vegetables and observes how taste can positively influence the children attitudes and eating behaviour. (DeCosta et al., 2017)
DeCosta, P., Møller, P., Frøst, M. B., & Olsen, A. (2017). Changing Children’s eating behaviour – a review of Experimental Research. Appetite, 113, 327–357. https://doi.org/10.1016/j.appet.2017.03.004
Grand Canyon University (Ed). (2018). Nursing research: Understanding methods for best practice. Retrieved from https://lc.gcumedia.com/nrs433v/nursing-research-understanding-methods-for-best-practice/v1.1
Thompson, C. B., & Panacek, E. A. (2007). Research study designs: Non-experimental. Air Medical Journal, 26(1), 18–22. https://doi-org.lopes.idm.oclc.org/10.1016/j.amj.2006.10.003
replied toKrishna Turner
Aug 12, 2022, 11:28 PM
Replies to Krishna Turner
Good post. Experimental research is the type of research that uses a scientific approach towards manipulating one or more control variables and measuring their defect on the dependent variables, while non-experimental research is the type of research that does not involve the manipulation of control variables. Nonexperimental research designs provide Level IV evidence. The strength of evidence provided by nonexperimental designs is not as strong as that for experimental designs because there is a different degree of control within the study; that is, the independent variable is not manipulated, subjects are not randomized, and there is no control group (Glasofer & Townsend, 2020). Yet the information yielded by these types of studies is critical to developing a base of evidence for practice and may represent the best evidence available to answer research or clinical questions.
Glasofer, A., & Townsend, A. B. (2020). Determining the level of evidence: Nonexperimental research designs. Nursing2020 Critical Care, 15(1), 24-27.
· Dilshoda Osorio
replied toKadija Tejan-deen
Aug 14, 2022, 7:37 PM
Replies to Kadija Tejan-deen
Experimental research gathers the information you need to make the best judgments possible (Thompson, 2007). For example employee skills in a hospital or organization, and school evaluations of different teachers’ teaching approaches are all examples of evaluations.
Researchers in non-experimental study examine factors as they happen naturally, with no further manipulation (Thompson, 2007). For example researchers utilize it to employ mathematical analysis methods to correlate two or more variables.
Thompson, C. B., & Panacek, E. A. (2007). Research study designs: non-experimental. Air Medical Journal, 26(1), 18–22. https://doi-org.lopes.idm.oclc.org/10.1016/j.amj.2006.10.003