Question

Advantage and disadvantage of self selected sampling

Answer 1

Advantages of self-selection sampling

Since the potential research subjects (or organisations) contact you:

This can reduce the amount of time necessary to search for appropriate units (or cases); that is, those individuals or organisations that meet the selection criteria needed for your sample.

The potential units or cases (individuals or organisations) are likely to be committed to take part in the study, which can help in improving attendance (where necessary), and greater willingness to provide more insight into the phenomenon being studied (e.g., a respondent many be more willing to spend the time filling in qualitative, open-ended questions in an online survey, where others may leave them blank).

Disadvantages of self-selection sampling

Since the potential research subjects (or organisations) volunteer to take part in the survey:

There is likely to be a degree of self-selection bias. For example, the decision to participate in the study may reflect some inherent bias in the characteristics/traits of the participants (e.g., an employee with a 'chip of his shoulder' wanting to give an opinion).

This can either lead to the sample not being representative of the population being studied, or exaggeratingsome particular finding from the study.

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