Health epidemiology & statistics - Essay Example

n the course of analysis, the researchers can see whether the variables in a given site have less absenteeism as well as lower health costs as compared to non-wellness sites (Stotmeyer. Et. Al 2010). The outcomes are restricted based on the co-relational study nature. While the study focuses on pre-existing groups, there are other differences within the groups above the absence or presence of a dependent variable. For instance, the programs are significantly newer and more attractive building for purposes of managing elements from a given program site.

The ultimate research technique decision is made based on a compromise between the sites due to presence and absence of dependent and independent variables. The study specifies the research question through a well-stated objective. The study reports on the hypothesis. The hypothesis in the research study is directional and complex. The study progresses to test the hypothesis through stipulated parameters. One of the major challenges of the process is foreign elements hindering success in the sampling process.

Elements that are not included in the article’s population and samples are seen on the sampling list. If the authors were to apply population records in creating a comprehensive list of participants experiencing the conditions, the health care professionals would qualify as foreign elements (Stotmeyer. Et. Al 2010). In such case, the report decoding could miss various elements. Further, duplicates are a representation of other research sampling problem. Such elements appear several times within the sampling frames.

For instance, if researchers study patient satisfaction based on emergency room care giving, the authors may include various patients based on various studies. If patients complete patient satisfaction questionnaires, the authors should ensure that they have increased awareness that the completed questionnaires should not be redone. Where the questionnaires are completed more than twice, the second