Delimitation in research refers to choices that the researcher makes for the study that are under the control of the researcher, according to Baltimore County Public Schools. The researcher must rationalize these decisions in a research proposal.Know More
Delimitations include the population of a study, variables, statistical analysis and focus of the research, states the University of Southampton. Within the research proposal, the researcher includes explanations for previous theoretical approaches not under review within the literature review. Typically, a researcher selects one methodology for a study and refers to other possible methodological approaches as delimitations. The parameters of the population must also include justification. Setting delimitations and subsequent justifications helps the researcher maintain objectivity in a study. It also helps other researchers reconstruct a study or advance future research on the same topic. Delimitations provide the scope within which researchers conclude findings and determine a study’s reliability or external validity.
Limitations are elements of a study that are not under the control of the researcher. Examples of limitations include funding and time constraints that affect methodology. Limitations decrease the validity of a study, but the research results are still applicable if the researcher discloses limitations and the integrity of the study remains.Learn more about Writing
In science, the control variable is the one factor in an experiment that the researcher holds steady in an effort to isolate the effect that is being studied. According to About.com, it is also sometimes referred to as the "constant" variable.Full Answer >
Statistics as a form of scientific discipline plays an important role in research because it enables the researcher to develop accurate and reasonable inferences from relevant data collections. In this way, the researcher is able to make more informed decisions rather than facing uncertainties. This is particularly important in the area of medical research and can help to prevent or minimize biases and errors.Full Answer >
To make a works cited page, list all the sources used in your research on a separate sheet at the back of the report. Include all the publication information, and describe what type of source it is.Full Answer >
A primary source is a document used in research that provides first-hand, direct evidence of a particular time period or event. These sources are either recorded directly at the time the event took place, or chronicled at a later date.Full Answer >