Quantitative Data Collection Process

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Five Steps in Data Collection

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1. Determine participants 2. Obtain permissions 3. Collect information types 4. Locate/select instruments 5. Administer data collection

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Selecting Participants

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Identify population and sample, decide on unit of analysis.

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Permissions Needed

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Obtain consent from institutions, participants, and review boards.

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Types of Information

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Performance measures, attitudinal measures, observations, documents.

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Sampling Methods

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Probability sampling, nonprobability sampling, convenience sampling.

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Probability Sampling

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Most rigorous, representative of population.

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Nonprobability Sampling

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Convenient, may not represent population.

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Simple Random Sampling

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Equal probability of selection.

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Stratified Sampling

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Divide population into strata, sample from each.

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Systematic Sampling

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Select every nth individual.