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This paper discusses terminology used in psychological research focusing on statistical methodology. First, the paper defines and uses examples for descriptive and inferential statistics. It further describes when its appropriate to use these methods. Additionally, the paper examines the similarities and differences between descriptive and inferential statistics. Next, the paper explores various research designs. Finally, the paper describes what constitutes a true experiment and importance of a control group.
From the Paper:"According to the text provided by Todman & Dugard, a true experiment is one in which several conditions must be the case. Most importantly, the text finds that a true experiment will be one in which the design structure prevents any possible causal explanation for the research outcome other than that proposed in its hypothesis. In other words, a true experiment must prevent any outliers or extraneous variables from intervening with the data gathered. The Todman & Dugard text elaborates on establishing this internal validity by describing a 'true experimental' design, contending that "in the simplest clinical trials a new treatment is compared with a control condition, which may be an alternative treatment or a placebo. The treatment or control conditions are randomly allocated to a large group of participants, and appropriate measurements are taken before and after the treatment or placebo is applied." (Todman & Dugard, 2)
"Defending the validity of this particular approach, the text by Todman & Dugard argues that proper randomization of both the control and experimental groups is also essential to establishing internal validity. This, combined with the proper structural control of experimental conditions, will be tantamount to the ability of researchers to claim external validity. "
Sample of Sources Used:
- Breakwell, G.M. (2006). Research Methods in Psychology. Sage.
- Todman, J.B. & Dugard, P. (2001). Single-case and Small-n Experimental Designs. Routledge.
Cite this Term Paper:
Psychology Research Methods and Methodologies (2012, August 23) Retrieved March 05, 2021, from https://www.academon.com/term-paper/psychology-research-methods-and-methodologies-151658/
"Psychology Research Methods and Methodologies" 23 August 2012. Web. 05 March. 2021. <https://www.academon.com/term-paper/psychology-research-methods-and-methodologies-151658/>