NRS 433 Compare independent variables, dependent variables, and extraneous variables SOLUTION Compare independent variables, dependent variables, and extraneous variables. Describe two ways that researchers attempt to control extraneous variables. Support your answer with peer-reviewed articles. Unread

NRS 433 Compare independent variables, dependent variables, and extraneous variables SOLUTION Compare independent variables, dependent variables, and extraneous variables. Describe two ways that researchers attempt to control extraneous variables. Support your answer with peer-reviewed articles. Unread

The dependent and independent variables are both included in every study. Most of the time, the independent variable is the one that is changeable and can be managed. The dependent variable is typically the cause of the outcome. In the scientific experiment, a dependent variable is tested and one is measured. The majority of the time, it is the result of something. According to Rahman & Rabiul Islam (2022), an experiment involves two variables, one of which is the dependent variable and the other is the independent variable. The dependent variable is constant and is only changed when the independent variable changes. A study in which the researcher wants to see if there is a link between the change of the light and the reaction of the moth is an example. In this scenario, the dependent variable is the moth’s reaction, whereas the independent variable is whether the light is bright or dull.

Extraneous variables, on the other hand, are those that arise in research although they were not intended to be studied. Extraneous variables are the variables in scientific research that are not intentionally studied. The goal of scientific research is to test the effects of the independent variable on the dependent variable. However, these variables affect or interfere with the outcomes of the experiment and are usually not anticipated. A confounding or extraneous variable is any additional variable that influences the dependent variable but does not fall within the independent variable (Roe-Prior, 2022). When conducting research, one is likely to encounter many adjustable factors that fall under the category of superfluous, and it is important to control these variables as a researcher. It might be done by randomization with the use of some tests that the researcher can control. Another method is to use statistical control to alter these variables, and another one is to utilize design control.

References

Rahman, S. T., & Rabiul Islam, M. (2022). Experimental Method. In Principles of Social Research Methodology (pp. 157-165). Singapore: Springer Nature Singapore. https://link.springer.com/chapter/10.1007/978-981-19-5441-2_11

Roe-Prior, P. (2022). Introduction to research design. Journal for Nurses in Professional Development, 38(6), 378-379. https://journals.lww.com/jnsdonline/Fulltext/2022/11000/Introduction_to_Research_Design.12.aspx

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