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It is widely believed that non-experimental research is not scientific hence calling for an understanding of experimental and non-experimental research. In response to the essay, I agree that experimental studies use two variables. The first variable is a constant manipulated by the researcher, while the second is computed and measured and experimental studies involve gathering enough accurate scientific data to make the decision. I was moved by the sole purpose of non-experimental research, which includes observation, interaction, and interpretation. It differs from other methods in that the parameters are chosen randomly and do not affect it in any way, so it is not considered a scientific method.
In quasi-experimental, participants are not randomly selected and hence do not get an opportunity to be placed in a control or intervention group. The primary distinction between true experiments and quasi-experiments is that true experiments assign participants to a group at random, whereas quasi-experiments do not (Miller et al., 2020). I would advise using such trials when randomized controlled trials are not feasible. RCT entails the random assignment of several clinical interventions to restrict selection bias.
Experimental research aims to conclude causal relationships between dependent and independent variables in a hypothesis. However, outcomes are affected by causes which are independent variables (Miller et al., 2020). The essay has enlightened three strong points of establishing causality, which I agree with. The first important goal is to find causal relationships and verify the initial conditions of the cause. Another requirement is a temporal priority, which considers the temporal order of parameters, then the cause comes after the effect. Researchers can have difficulty identifying the correct variables, making causal methods prone to flaws.
In conclusion, a randomized controlled trial (RCT) is the most reliable method that I prefer for demonstrating an intervention’s efficacy. RCT findings are likely closer to the actual effect than those from other research methods (Miller et al., 2020). However, quasi-experimental has an advantage because, without randomization, they can imitate an experiment and provide a high level of evidence. I agree that RCT and quasi-experimental will always give positive outcomes when strict adherence to the steps is followed.
Reference
Miller, C. J., Smith, S. N., & Pugatch, M. (2020). Experimental and quasi-experimental designs in implementation research. Psychiatry research. Web.
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