Unit 1 Flashcard 1Review: Sampling Methods and types of questions

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What does bias mean?

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A term used to describe statistics that don't provide an accurate representation of the population.

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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 is an experiment?

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A research method where the researcher manipulates one or more variables to determine their effect on another variable.

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What is a random sample?

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A subset of individuals chosen from a larger population, where each individual has an equal chance of being selected.

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What is the difference between a population and a sample?

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A population includes all members of a specified group, while a sample is a subset of the population.

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What is the purpose of a survey in research?

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To gather information and opinions from a group of people about a specific topic.

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What does it mean to classify individuals in a study?

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To categorize individuals based on specific characteristics or behaviors for analysis.

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What is the significance of control groups in experiments?

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Control groups are used to compare against experimental groups to determine the effect of the treatment.

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What is the role of randomization in sampling?

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Randomization helps eliminate bias by ensuring that every individual has an equal chance of being selected.

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What is a variable in research?

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A variable is any factor, trait, or condition that can exist in differing amounts or types.