Reliability, validity and trustworthiness in nursing [Name] [Date] Introduction Nursing has always been considered as a practical discipline and there was a lack of theoretical developments in the field of nursing. The studies conducted by the nurses borrowed from their practical experience should be based on three main concepts, such as reliability, validity and trustworthiness…
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30). In case positive results of the nurses’ researches and studies are reached, then their research strategies are valid and reliable (Zangaro, Soeken 2005, p. 6). Qualitative researches are often positioned as pragmatic researches and there is no doubt that there is a need to follow the rules of these researches. In accordance with Aristotle, there is more practical than theoretical aspects of nursing. One of the greatest ancient philosophers claims: “practical sciences inquire into the principles and causes of things to achieve knowledge in order to make, as in engineering, or in order to do, as in ethics” (Strickland 2006, p. 5). Three main concepts of nursing research Reliability and validity are two integrative elements of trustworthiness of the researches and studies. Trustworthiness of the research depends on the initial research question, data collection, analysis and conclusions reached. The issues of validity and reliability should be taken into account in the process of reading different research projects, either quantitative or qualitative ones. Both in qualitative and quantitative studies, these concepts are of crucial importance. That is why the following research, which is based on the article by Byrne, Cooper and Fairburn “Weight maintenance and relapse in obesity: a qualitative study”, the concept of reliability is discussed in detail. The study deals with the problems of obesity, a challenging issue of weight regain and weight maintenance. A qualitative approach is chosen in this study, because there is a need to define the number of factors, which are influencing on weight maintenance and relapse in obesity. The reliability of quantitative studies depends on the methodology of calculation. In the study conducted by Byrne, Cooper and Fairburn transcripts were analyzed with the help of NUD*IST software (Byrne, Cooper and Fairburn 2003, p. 956). Reliability demonstrates how a certain procedural instrument is used to provide similar results in different circumstances. Validity is the correlation of an intended measure with the real measure. These two concepts should be better considered in terms of nursing research. In a broader definition: “validity in relation to research is a judgment regarding the degree to which the components of the research reflect the theory, concept, or variable under study” (Roberts 2006, p. 42). In order to determine whether results are valid or not, it is necessary to determine worthiness of the reached results in the process of the study. Internal validity refers to evaluation of the results’ worthiness. External validity deals with generalization of the study’s results and its application to the larger population (Morse 1991, p. 15). Further on, the concept of reliability is considered in detail and it is relevant to discuss the main characteristics of this concept. Reliability determines an instrument’s stability and consistency in a certain context. Reliability of a measured instrument should be considered in terms of a particular study otherwise its application may be irrelevant. Further on reliability will be considered in accordance with three main characteristics: stability, internal consistency and equivalence (Munhall 2001, p. 18). Test-retest
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Human services research, like every other research, is based on a set of propositions and concepts. In order to operationally define concepts we need to measure them. The process of measurement begins with the fundamental question “What has to be measured?
The paper is aimed to define and to discuss the concepts of reliability and validity in the research process. These concepts are considered statistically significant in proving data in research to be able to be accepted as scientific truth. Reliability defines the high level of trust on the recorded data thus can be repeated and replicated.
Acceptability and trust are highly associated with the reality, what is seen or observed or measured, the information given and what the human logic could readily understand or perceive (Nooteboom, 2002; Damer, 2008; Carter, 2009). It is in line with this that reliability and validity are strongly linked with each other through a certain level of acceptability and trust.
What concerns would you have in applying each of these instruments for research in a new population? How would you address these concerns if you were to use either of these instruments in research? (500 words) There are two concepts which will be analyzed here comparing and contrasting the confirmatory factors of validity and reliability between two articles.
The manner in which data is collected creates room for the researcher to introduce personal views into the process. The difference between qualitative research papers with high quality and those with poor quality is directly linked to the personal philosophy of the researcher.
The ICI questionnaire is an adaptation of Duttweiler's 28 item inventory (Duttweiler, 2004). It is a measure of a person's belief in how much control they possess in their own life. The two extremes are those who believe they possess complete control in determining what they receive in life (the Internals), and those who believe that they have absolutely no control (the Externals).
It measures the extent to which tests or procedures assess the same characteristic, skill or quality. It is a measure of the precision between the observers or of the measuring instruments used in a study. It refers to how well all the test items relate to each other.
Social workers, youth counselors, and psychologists may all be considered to be human service providers. Professionals in the human services sector are greatly aided by experimental and other types of research. The researchers who offer this information are sometimes also a frontline service provider.
Personality tests are used in other areas such as individual and relationship counseling, as well as career planning and the development of the already existing employees in an organization (House & Johnson, 2002). Personality testing includes the presentation of some tests or questions to individuals, who then responds to such questions based on a rated scale, depending on how such items of the tests reflects their personal behavior.
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