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Multistage Sampling Technique - Probability Sampling - Mass Media Research.pptx
Multistage sampling involves taking samples in stages by dividing the population into groups and selecting smaller units at each stage, making it a complex form of cluster sampling. For instance, in a study on preferred cartoons among Pakistan school children, researchers would start with a random sample of states, then schools, and finally students. Additionally, demographic quotas can be employed in telephone interviews to ensure representation of certain demographics among respondents.
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Multistage Sampling Technique - Probability Sampling - Mass Media Research.pptx
- 1. Multistage samplingis the taking of samples in stages using smaller and smaller sampling units at each stage. Multistage sampling can be a complex form of cluster sampling because it is a type of sampling which involves dividing the population into groups (or clusters). 10/14/2022 Multistage Sampling Muhammad Awais (facebook.com/awwaiis)
- 2. Let’s sayyou wanted to find out which subjects Pakistan school children preferred which cartoons. A population list — a list of all Pakistan school children– would be near-impossible to come by, so you cannot take a sample of the population. Instead, you divide the population into states and take a simple random sample of states. For the next stage, you might take a simple random sample of schools from within those states. Finally you could perform simple random sampling on the students within the schools to get your sample. 10/14/2022 Muhammad Awais (facebook.com/awwaiis)
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- 4. If youwant to do interviews on telephone, do demographic quotas to select your respondents. Which means that a certain percentage of all respondents must be of a certain gender or age. In this type of study, researchers determine which person in the household should answer the questionnaire by using a form of random-numbers table. 10/14/2022 Muhammad Awais (facebook.com/awwaiis)
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