Data Collection and Sampling

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What is the purpose of data collection in research?

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To gather information and evidence for research purposes.

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What are the two main types of data collection methods?

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quantitative and qualitative

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What is the difference between primary and secondary data?

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Primary data is collected firsthand by the researcher, while secondary data is collected by someone else.

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What are the advantages of using interviews as a data collection method?

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Interviews allow for in-depth and detailed information to be gathered, enable observation of non-verbal cues, and provide qualitative data.

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What is random sampling?

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A method of selecting a subset of individuals from a larger population in a way that each individual has an equal chance of being chosen.

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What are the different types of random sampling techniques?

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simple random sampling, stratified random sampling, cluster sampling, and systematic random sampling

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What is simple random sampling?

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Method of selecting a subset of individuals from a larger population with equal chances of selection.

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What is stratified random sampling?

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Sampling technique where the population is divided into distinct subgroups or strata, and then a random sample is taken from each stratum.

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What is cluster sampling?

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Cluster sampling is a sampling technique where the population is divided into clusters, and a random sample of clusters is selected. Then, all individuals within the selected clusters are included in the sample.

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What are the advantages of using random sampling in research?

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Random sampling helps to ensure that the sample is representative of the population, reduces bias, and allows for generalization of findings to the larger population.