How to reduce common types of errors encountered in defining a research problem?
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1. Population Specification
This type of error occurs when the researcher selects an inappropriate population or universe from which to obtain data.
2. Sampling
Sampling error occurs when a probability sampling method is used to select a sample, but the resulting sample is not representative of the population concern. Unfortunately, some element of sampling error is unavoidable. This is accounted for in confidence intervals, assuming a probability sampling method is used.
3. Selection
Selection error is the sampling error for a sample selected by a nonprobability method
This type of error occurs when the researcher selects an inappropriate population or universe from which to obtain data.
2. Sampling
Sampling error occurs when a probability sampling method is used to select a sample, but the resulting sample is not representative of the population concern. Unfortunately, some element of sampling error is unavoidable. This is accounted for in confidence intervals, assuming a probability sampling method is used.
3. Selection
Selection error is the sampling error for a sample selected by a nonprobability method
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