Data Collection Methods

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What is an Observational Study?

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A research method where the researcher observes and records behavior without manipulating any variables.

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What type of data can surveys generate?

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Surveys can generate qualitative data, quantitative data, and objective data.

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What is a controlled variable in a science experiment?

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The part of the experiment that we keep the same between trials.

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What is a dependent variable in a science experiment?

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The part of the experiment that we measure.

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What is a controlled variable?

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The things that are kept the same to ensure the results are due to the experiment.

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What is an Independent Variable?

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The part of the experiment that we manipulate or change.

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What is qualitative data?

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Data that describes qualities or characteristics, often collected through interviews or open-ended questions.

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What is quantitative data?

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Data that can be measured and expressed numerically, often collected through surveys with closed-ended questions.

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What is the purpose of a sample survey?

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To gather information from a subset of a population to make inferences about the entire population.

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What is the difference between a sample and a census?

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A sample is a subset of a population, while a census attempts to collect data from every member of the population.