Definition
A form of convenience sampling in which the population elements are purposively selected based on the judgment of the researcher.
Explanation
A judgment sample is one in which there is an attempt to draw a representative sample of the population using judgmental selection procedures. Judgment samples are common in industrial market research.
Example
A sample of addresses taken by the municipal agency to which questionnaires on bicycle riding habits were sent. A judgment sample was taken after researchers looked at traffic maps of the city, considered the tax assessment on houses and apartment buildings (per unit), and kept location of schools and parks in mind.
Advantages
• Judgmental sampling is low cost, convenient and quick.
• Judgmental sampling is subjective and its value depends entirely on the researchers judgment, expertise and creativity.
• It is useful if broad population inferences are not required.
Disadvantage
• It does not allow direct generalization to a specific population, usually because the population is not defined explicitly.
A form of convenience sampling in which the population elements are purposively selected based on the judgment of the researcher.
Explanation
A judgment sample is one in which there is an attempt to draw a representative sample of the population using judgmental selection procedures. Judgment samples are common in industrial market research.
Example
A sample of addresses taken by the municipal agency to which questionnaires on bicycle riding habits were sent. A judgment sample was taken after researchers looked at traffic maps of the city, considered the tax assessment on houses and apartment buildings (per unit), and kept location of schools and parks in mind.
Advantages
• Judgmental sampling is low cost, convenient and quick.
• Judgmental sampling is subjective and its value depends entirely on the researchers judgment, expertise and creativity.
• It is useful if broad population inferences are not required.
Disadvantage
• It does not allow direct generalization to a specific population, usually because the population is not defined explicitly.