Epidemiological Methods

 

Describe the diagnostic or screening tool selected, its purpose, and what age group it targets.
Has it been specifically tested in this age group?
Next, discuss the predictive ability of the test. For instance, how do you know the test is reliable and valid? What are the reliability and validity values? What are the predictive values? Is it sensitive to measure what it has been developed to measure, for instance, HIV, or depression in older adults, or Lyme disease? Would you integrate this tool into your advanced practice based on the information you have read about the test, why or why not?

 

Sample Solution

Epidemiological Methods

Epidemiology is the study of the determinants, occurrence, and distribution of health and disease in a defined population. The three major epidemiologic techniques are descriptive, analytic, and experimental. Descriptive epidemiology aims to describe the distributions of diseases and determinants. It provides a way of organizing and analyzing these data to describe the variations in disease frequency among populations by geographical areas and over time (that is, person, place, and time). Descriptive epidemiology uses observational studies of the distribution of disease in terms of person, place, and time. The study describes the distribution of a set of variables, without regard to causal or other hypotheses. Personal factors include age, gender, SES, educational level, ethnicity, and occupation.

he Securitisation Theory has provided many approaches to how the issue of security is deal with, although there are many strengths to this theory, there are many drawbacks and weaknesses to this theory which doesn’t go unnoticed. The Copenhagen School identifies the different areas of security – military, political, economic, societal and environmental sectors which all play a role in shaping the nature of the referent object (Buzan et al, 1998) The traditional stance of security has widened because of these distinct sectors leading to the shift of focus from “power politics” to the politicisation of security issues. (Carr, 1939) This has been criticised due to it being unsystematic as the persistent focus is on securitising actors as political elites rather on securitising power of images and material practices, also the procedure of which the audience approves the move by securitising actors. (McDonald, 2008) Securitisation therefore becomes a self-referential practice where the role of the audience works only in a way that constructs a process that has been fixed in the social sphere. An example is that the securitisation theory has unsuccessfully been applied to Western liberal democracy; adopting the ‘dualistic constructivism’ of the Copenhagen School leads to lack of attention to the social construction of actors, audiences and the system itself. (Huysmans, 1998) therefore, it is crucial that the social environment has to be developed over time to ensure that certain contextual factors are shaped effectively so that it will have a positive impact on the definition of security.

Another weakness of the securitisation theory, is they fail to consider external factors. Second generation scholars stress the lack of focus on external context of securitisation such as gender, institutional setting, cultural or regional environment. (Wilkinson, 2011) For example during the Cold War, Nato and EU come together effectively to support one another during time of war. All the international actors get together, ignoring cultural and national differences each country have to face the threat. The end of the Cold War results in the tensions between these countries rising again, so these international actors worked alongside each other to face the common threat and to work together for national secur

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