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Amenable to scientific study using a quantitative approach

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PLEASE ANSWER AND REBUTTAL THE FOLLOWING QUESTIONS OR POST STATEMENTS. MUST BE 150 WORDS. (PLEASE), WRITE IN 1st PERSON.PLEASE MAKE SURE TO USE SCHOLARLY PEER REVIEWED ARTICLES AND PLACE EACH REFERENCE USED UNDER EACH ANSWER.

DQ1

There are hallmarks that are necessary in addressing a research problem. In a quantitative approach, this concept includes making the research topic amenable to scientific study. Hence, in framing the problem, researchers must ensure that a scholarly, systematic method of inquiry can be applied to the study (Walden, 2015). I addition, a researcher must maintain scholarly objectivity to mitigate against reliability and validity issues. In this context, reliability denotes a consistency in result from a research instrument, strategy, or approach (Burkholder, Cox, & Crawford, 2016). Overall, a research design must allow for multiple possible conclusions and mitigates against other threats.

Threats to Validity

Validity is a significant aspect of a research design. As it relates to quantitative study, validity denotes the best existing estimation to the truth regarding a proposition (Cook & Campbell, 1979, as cited by (Burkholder, et al., 2016). Therefore, the quality of a research is primarily dependent on the validity of its findings. This approach includes the type of data collected and how that data is used to answer the research question (Burkholder, et al., 2016). In the context of causal mechanism, there are threats that undermines the validity framework—internal and external.

Internal Validity

Quantitative research needs to address the internal validity of the target research question(s). Internal validity questions the truthfulness of a given proposition, regarding how a change in one variable causes a change in the outcome (Burkholder, et al., 2016). When there is causal inference, there are also competing explanations—threats to a statement’s validity. In the context of quantitative research, one of the threats to internal validity is selection. This concept refers to the process of selecting participants—self-selection or researcher sampling and assignment procedures (Shadish, Cook, & Campbell, 2002). The problem occurs when “cause and effect” is disputable, because of systematic differences across conditions.

External Validity

A quantitative approach in research also involve addressing external validity. In this context, the primary issue with external validity is ensuring that research findings hold true across contexts (Burkholder, et al., 2016). However, as with internal validity, there are also threats to external validity. Relative to quantitative research, one of the threats to external validity is the interactions of the observed causal relationship with sample units (Burkholder, et al., 2016). In this case, the results of one particular sample in a research, may not hold across other samples.

Strategies to Mitigate Threats

The quality of a quantitative research necessitates the mitigation of threats—internal and external. A fundamental quality indicator for research addressing causality is the presence of a control condition (Shadish, et al., 2002). This approach is especially significant, for causal inferences. Regarding selection, one approach to mitigating threats to validity is the use of random assignment—coin flips, computer algorithms, etc. (Burkholder, et al., 2016). Mitigating threats to external validity is equally important. Hence, the interactions of the observed causal relationship with sample units can be addressed by strategically incorporating a relevant design and methodology. One approach denotes including a qualitative case study analysis that would elucidate the degree to which these findings might generalize to other contexts (Burkholder, et al., 2016). Hence, mitigating threats to validity impacts research design and is reliant on the strategic incorporation of various methodologies.

Potential Ethical Issues

Potential ethical issues in social science often influence design decisions. Most of these ethical issues involves the methodologies employed (Babbie, 2017). Relative to quantitative research, it is not unusual to select participants—human subjects—for a particular study. The Belmont Report asserts three key principles—Resect for persons, beneficence, and justice—that must be considered (Babbie, 2017). Regardless, there will always be some risks to someone, when conducting research. Nevertheless, some designs are more feasible in mitigating risks than others (Babbie, 2017). Thus, researchers should consider a design that will best safeguard against these risks. One approach, regarding design decisions is to structure the research in a manner that guarantees anonymity.

References:

Babbie, E. (2017). The basics of social research (7th. Ed). Boston, MA: Cengage.

Burkholder, G.J., Cox, K.A., & Crawford, L.M. (2016). The Scholar-Practitioner’s Guide to Research Design, 1st Edition.

[MBS Direct]. Retrieved from https://mbsdirect.vitalsource.com/#/books/9781624580314/

Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and quasi-experimental designs for generalized causal

inference. Boston, MA: Houghton-Mifflin.

DQ2

Developing quantitative research studies that can stand the test of validity is a complicated and nuanced practice. Burkholder (2016) touched upon the experimental design validity framework of Shadish and colleagues that focuses on validity in the context of experimental designs. The framework outlines four components of validity in experimental design research; internal, external, statistical conclusion, and construct validity (Ch 2, Validity Considerations). Focusing upon internal and external validity it is important to note the threats and disparities of each in developing and conducting quantitative research.

Internal validity refers to the ability to test selected variables to an extent that allows the researcher to develop a causal inference. The ability to show that a selected variable had a change directly impacted by or caused by an independent variable absent of another plausible rival explanation (Burkholder, Ch 2, Internal Validity). Internal validity means that a study design enabled the researcher to account for all possible intervening variables related to the focus of the research. Internal validity in a way is the elimination of competing variables to explain a given phenomenon. For example, a study examining student retention and tuition affordability would have to account academic variables (among others) in order to isolate the focus upon economic driven negative retention rates. A researcher would have to control for students (or eliminate) from a study those where negative retention was the result of poor academic performance in order to show a valid relationship between retention (dependent) and affordability (independent). Failure to do so would result in the study failing to meet the standard of internal validity. Diminishing any correlation based upon non-controlled variables that could be used as plausible explanations for the dependent variable.

The plausibility of the implantation of a research study across contexts while still holding true is external validity (Burkholder, Ch.2, External Validity). This is another research design practice that requires an astute attention to detail and a great deal of perspective to eliminate. The greatest threat to external validity in my opinion is a failure to account for environmental context. Or the inability to account for environmental context when conducting a study or examining research results. For Instance, in my field of higher education, a study examining the effectiveness of retention policies in New Jersey would fail an external validity test if it did not account for the variations of state policies from state to state. This would be an example of generalization of a research study findings. If a researcher accounted for plausible factors that enabled a study to replicate across other states by utilizing qualitative data could then account for external validity of the study.

In addition to validity concerns in developing quantitative research studies, ethical concerns are also a pressing trepidation for researchers. For instance, when conducting a study that is localized to a specific geographic area, whereas the publication of the data could potentially be traced to individuals, is a paramount ethical and legal concern for researchers (Protecting Human Research Participants, NIH Office of Extramural Research). A study design must account for the anonymity and protection of any research subjects. When designing a research study it is important to measure the necessity of ethical responsibility, with the selection of study variables and testing tools. A failure to do so can leave a researcher ethically responsible for failing to meet the obligation of participant privacy or a study whose measurements could not balance with those obligations and fails to meet validity standards.

Finally, in developing a research study, one must derive ones methodology from the basis of the research question. Thus after developing a research question one can determine the most appropriate methodology to answer the research question. Not every research question is amenable to quantitative methodology. This means that in order to employ a quantitative methodology a researcher must be able to identify variables that can be numerically quantified as well as a tool that can accurately test the quantified data. Some research questions cannot be answered without a qualitative approach. Thus, the importance in allowing the research question to delineate the scientific methodology to employ for a given study and to analyze the potential limitations or flaws that may arise if choosing quantitative methods for a study that is not amenable to quantitative approaches.

References

Burkholder, G., Cox, K., & Crawford, L. (2016). Scholar-practitioners guide to research design (1st ed.). Baltimore, MD: Laureate Publishing Inc.

National Institutes of Health (2018). Protecting human research participants. Retrieved from https://phrp.nihtraining.com

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