The writer is very fast, professional and responded to the review request fast also. Thank you.
1 postsRe: Topic 4 DQ 1
Independent variables are the ones that are manipulated by a researcher, whereas dependent variables are those that are impacted by the manipulation of the independent variables. Extraneous variables are those variables that have an undesirable impact in an experiment. Under ideal circumstances, manipulating the independent variable will cause a change in the dependent variable. All the other variables should not be effected. This, in turn, helps establish a causal relationship. However, sometimes other factors can have an impact on the dependent variables, in addition to the independent variable (Pourhoseingholi et al., 2016). Therefore, the extraneous variables lower the credibility of the experiment results by providing an alternative explanation, which in turn can make it difficult to establish a causal relationship which is often the goal of the researchers. It becomes even more problematic if the extraneous variables change along with the dependent variable, therefore becoming confounding variables. The major ways that researchers try to restrict the impact of extraneous variables are randomizing, restricting and matching. In randomizing, the subjects involved are all exposed to the extraneous variables, therefore creating consistent groups. In restricting, the variations in the extraneous variables are eliminated to prevent changes, and in matching, the subjects are selected in a way the extraneous factors are matched and they no longer remain extraneous factors (Kahlert et al., 2017)
Using 200-300 APA format with at least two references to support the discussion
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more