In practice, true experimental design is the most accurate research design because the results are drawn on statistically proved hypotheses using randomly assigned participants. The article Experimental or RCT research designs: a crisis of nomenclature in medical education uses true experimental research design that is based on educational intervention. In this study, the effect of a manipulated variable on the dependent variable was observed based on pre-test and post-test control group designs in a clinical RCTs environment (Donnon, 2012). The demographic characteristics of the participants were defined in the study as the independent variables. According to Donnon (2012), a randomized controlled trial (RCT) of patients was selected randomly and assigned to different groups to fulfill the requirements of a true experimental research design (Trochim, 2006b). The changes that happened in both groups were noted. Besides, the confounding variables were controlled and their effects were observed to make the results accurate and replicable (Trochim, 2006a). The Posttest Equivalent Groups led to accurate results because random values were used to ensure that the attributes of true experimental design were followed. Two groups were used in the study and each group had the characteristics of the true experimental design. According to Trochim (2006a), treatments were not applied to the first group, but they were applied to the second group. Typically, the attributes of the two-group pretest-treatment-posttest design qualify to be defined as a strong true experimental design because both, the treatment and control groups, were used effectively. In conclusion, the results could be replicated because they were proved to be statistically accurate and reliable.
References
Donnon, T. (2012). Experimental or RCT research designs: a crisis of nomenclature in medical education. Canadian Medical Education Journal, 3(2), e82.
Trochim, W. (2006a). Research methods knowledge base. Internal validity. Web.
Trochim, W. (2006b). Research methods knowledge base. Introduction to research designs. Web.