Experimental research is a type of research that is used in behavioral health. Participants are randomly assigned to one of two (or more) conditions. The fact that participates are randomly chosen gives the researcher a better knowledge of the differences that occur when between the groups after exposure to the conditions and can be inferred to be a result of the effects of the conditions (Straub, 2012).
The actual description to experimental research is commonly used in sciences such as sociology and psychology, physics, chemistry, biology and medicine etc. (Blakstad, 2008). It is best defined as “is a systematic and scientific approach to research in which the researcher manipulates one or more variables, and controls and measures any change in other variables” (Blakstad, 2008).
Experimental research is used when there is time priority in a causal relationship (cause precedes effect), there is consistency in a causal relationship (a cause will always lead to the same effect), and the magnitude of the correlation is great (Blakstad, 2008).
In the development of psychology and other behavioral sciences, human and animal behavior was tested by using experimental research in a laboratory context (Straub, 2012). In the article “Bench to bedside: the quest for quality in experimental stroke research,” the author wanted to look more closely at the review of some quality-related sources of bias with a particular focus on experimental stroke research” (Dirnagl, 2006). The article included the weakness such as low statistical power and hence reproducibility, defects in statistical analysis, lack of blinding and randomization, lack of quality-control mechanisms, deficiencies in reporting, and negative publication bias (Dirnagl, 2006). The author’s focus was on experimental stroke research but referred to animal experiments. This is where he used animals to test the effect of a physical, pharmacological, or genetic manipulation on outcome
References: Abeysinghe, H. C., Bokhar, L., Dusting, G. J., & Roulston, C. L. (2014). Brain Remodelling following Endothelin-1 Induced Stroke in Conscious Rats. PLoS ONE vol9, 1-14. Blakstad, O. (2008, 07 10). Experimental Research. Retrieved from Explorable: https://explorable.com/experimental-research Cherry, K. (2014). Research Methods in Developmental Psychology. Retrieved from About Education: http://psychology.about.com/od/developmentalpsychology/a/devresearch.htm Dirnagl, U. (2006). Bench to bedside: the quest for quality in experimental stroke research. Journal of Cerebral Blood Flow & Metabolism, 1465–1478. Straub, R. O. (2012). Health and Illness: Lessons from the Past. New York, NY: Worth Publishers.