Acuscan critical case study

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Acuscan critical case study

Definitions of qualitative case study research

Expert sampling Maximum variation sampling Maximum variation sampling, also known as heterogeneous sampling, is a purposive sampling Acuscan critical case study used to capture a wide range of perspectives relating to the thing that you are interested in studying; that is, maximum variation sampling is a search for variation in perspectives, ranging from those conditions that are view to be typical through to those that are more extreme in nature.

By conditions, we mean the units i. These units may exhibit a wide range of attributes, behaviours, experiences, incidents, qualities, situations, and so forth.

The basic principle behind maximum variation sampling is to gain greater Acuscan critical case study into a phenomenon by looking at it from all angles. This can often help the researcher to identify common themes that are evident across the sample.

Homogeneous sampling Homogeneous sampling is a purposive sampling technique that aims to achieve a homogeneous sample; that is, a sample whose units e.

In this respect, homogeneous sampling is the opposite of maximum variation sampling. A homogeneous sample is often chosen when the research question that is being address is specific to the characteristics of the particular group of interest, which is subsequently examined in detail.

The word typical does not mean that the sample is representative in the sense of probability sampling i. Rather, the word typical means that the researcher has the ability to compare the findings from a study using typical case sampling with other similar samples i.

Therefore, with typical case sampling, you cannot use the sample to make generalisations to a population, but the sample could be illustrative of other similar samples. Whilst typical case sampling can be used exclusively, it may also follow another type of purposive sampling technique, such as maximum variation sampling, which can help to act as an exploratory sampling strategy to identify the typical cases that are subsequently selected.

Extreme or deviant case sampling Extreme or deviant case sampling is a type of purposive sampling that is used to focus on cases that are special or unusual, typically in the sense that the cases highlight notable outcomes, failures or successes.

These extreme or deviant cases are useful because they often provide significant insight into a particular phenomenon, which can act as lessons or cases of best practice that guide future research and practice. In some cases, extreme or deviant case sampling is thought to reflect the purest form of insight into the phenomenon being studied.

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Critical case sampling Critical case sampling is a type of purposive sampling technique that is particularly useful in exploratory qualitative research, research with limited resources, as well as research where a single case or small number of cases can be decisive in explaining the phenomenon of interest.

It is this decisive aspect of critical case sampling that is arguably the most important. To know if a case is decisive, think about the following statements: If it happens there, it will happen anywhere?

If that group is having problems, then we can be sure all the groups are having problems? Whilst such critical cases should not be used to make statistical generalisations, it can be argued that they can help in making logical generalisations.

However, such logical generalisations should be made carefully. Total population sampling Total population sampling is a type of purposive sampling technique where you choose to examine the entire population i. In such cases, the entire population is often chosen because the size of the population that has the particular set of characteristics that you are interest in is very small.

Therefore, if a small number of units i. Expert sampling Expert sampling is a type of purposive sampling technique that is used when your research needs to glean knowledge from individuals that have particular expertise. This expertise may be required during the exploratory phase of qualitative research, highlighting potential new areas of interest or opening doors to other participants.

Alternately, the particular expertise that is being investigated may form the basis of your research, requiring a focus only on individuals with such specific expertise. Expert sampling is particularly useful where there is a lack of empirical evidence in an area and high levels of uncertainty, as well as situations where it may take a long period of time before the findings from research can be uncovered.

Therefore, expert sampling is a cornerstone of a research design known as expert elicitation.

Acuscan critical case study

Advantages and disadvantages of purposive sampling Whilst each of the different types of purposive sampling has its own advantages and disadvantages, there are some broad advantages and disadvantages to using purposive sampling, which are discussed below.

Advantages of purposive sampling There are a wide range of qualitative research designs that researchers can draw on.The study was undertaken as a critical case study using Fay’s Critical Social Theory as an interpretive frame and progressed as an unobtrusive research inquiry.

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Acuscan critical case study

Describe all assumptions seen in any of documents provided in the case study.a. Kelly- Through communication and emails Kelly . study approach in IS research and focus on the importance of selecting ‘critical cases’. A case study is an in-depth study of the particular where the researcher.

CRITICAL LEGAL STUDIES Critical legal study (CLS) is a theory that challenges and overturns accepted norms and standards in legal theory and practice. Supporters of this theory believe that logic and structure attributed to the law grow out of the power relationships of the society.

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