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OBTAIN LITERATURE SAMPLES TV

Purposive sampling is one of the most cost-effective and time-effective sampling methods available.

Rather than applying random sampling and choosing subjects who may not be available, you can use purposive sampling to choose IT companies whose availability and attitude are compatible with the study.Īdvantages of Purposive Sampling (Judgment Sampling) Your research objective is to determine the patterns of use of social media by global IT consulting companies based in the US. If you decide to apply questionnaire primary data collection method with use of purposive sampling, you can go out to Oxford Street and stop what seems like a reasonable cross-section of people in the street to survey.Īnother example. Suppose, your dissertation topic has been approved as the following:Ī study into the impact of tax scandal on the brand image of Starbucks Coffee in the UK

Theoretical samplingis a special case of purposive sampling that is based on an inductive method of Grounded Theory.Īpplication of Purposive Sampling (Judgment Sampling): an Example.

Homogeneous sampling focuses on “focuses on one particular subgroup in which all the sample members are similar, such as a particular occupation or level in an organization’s hierarchy”.

This is done to ensure the presence of maximum variability within the primary data.

Heterogeneous or maximum variation sampling relies on researcher’s judgment to select participants with diverse characteristics.Critical case sampling focuses on specific cases that are dramatic or very important.Deriving samples from cases that are perceived as unusual or rare such as exploring the reasons for corporate failure by interviewing executives that have been fired by shareholders. Explains cases that are average and normal. In purposive sampling personal judgment needs to be used to choose cases that help answer research questions or achieve research objectives.Īccording to the type of cases, purposive sampling can be divided into the following six categories : For example, for a research analysing affects of personal tragedy such as family bereavement on performance of senior level managers the researcher may use his/her own judgment in order to choose senior level managers who could particulate in in-depth interviews.

OBTAIN LITERATURE SAMPLES TV

However, it is important to specify that the TV reporter has to apply certain judgment when deciding who to stop on the street to ask questions otherwise it would be the case of random sampling technique.Īlternatively, purposive sampling method may prove to be effective when only limited numbers of people can serve as primary data sources due to the nature of research design and aims and objectives. TV reporters stopping certain individuals on the street in order to ask their opinions about certain political changes constitutes the most popular example of this sampling method. Researchers often believe that they can obtain a representative sample by using a sound judgment, which will result in saving time and money”. Purposive sampling is a non-probability sampling method and it occurs when “elements selected for the sample are chosen by the judgment of the researcher. Purposive sampling (also known as judgment, selective or subjective sampling) is a sampling technique in which researcher relies on his or her own judgment when choosing members of population to participate in the study.