The main advantage of purposive sampling is that a researcher can reach a targeted sample quickly. It is easy to get a sample of subjects with specific characteristics. Additionally, researchers are able to draw on a wide range of qualitative research designs.Know More
Purposive sampling saves time, money and effort. It is flexible and meets multiple needs and interests. It enables researchers to select a sample based on the purpose of the study and knowledge of a population. They choose subjects because of certain characteristics.
The primary objective of this type of non-probability sample is to produce a sample that is representative of a particular population. This is done by using the researcher’s expert knowledge of the population and selecting a sample of elements in a non-random manner.
Another major advantage of this type of sampling is the wide range of sampling techniques that researchers can use across different qualitative research designs. Typically, qualitative research designs involve multiple phases and require different types of sampling techniques at every phase. Purposive sampling becomes useful in this situation, because it offers a wide selection of non-probability sampling techniques. For example, a researcher can use critical case sampling to determine if a phenomenon is worth investigating further. Then, he can use expert sampling to examine specific issues.
Various purposive sampling techniques allow researchers to make generalizations from the sample that is being studied, whether these generalizations are logical, analytic and/or theoretical in nature.Learn more about Social Sciences
Burning garbage is advantageous because it reduces the volume of trash within landfills, concentrates harmful compounds into ash, is less expensive and produces electricity or power, according to RenewableEnergyWorld.com. Burning garbage is a relatively easy task and takes less time.Full Answer >
The advantages of evaluating samples from research studies include the ability to apply findings to the general population without having to survey everyone on the planet. Even a survey of just 500 people only has an error margin of +/- 4.5 percent, making it reasonably reliable.Full Answer >
The advantages of working women generally revolve around personal opportunities, both to develop in one's career and provide additional financial resources, while the cons generally have to do with missed memories and fatigue. No matter whether one chooses to stay at home with one's children or work outside the home, there are definite trade-offs to consider.Full Answer >
There are several advantages and disadvantages of living in a city, but one of the most notable advantages is a shorter commute. Many companies have offices in cities rather than suburbs or rural settings, so living in a city reduces the amount of time it takes for an employee to get to work and back again.Full Answer >