Survey Experiment Observation Study

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What is a survey?

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A method of data collection that involves asking questions to a sample of individuals from a population.

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What is an observational study?

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A study where individuals are monitored for measures of variables of interest without influencing their responses.

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What is the main difference between an observational study and an experiment?

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In an observational study, the researcher observes without changing conditions, while in an experiment, the researcher manipulates conditions to observe effects.

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What is a sample survey?

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A survey that involves a random selection of individuals from a population to gather data.

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What does it mean to conduct an experiment?

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To manipulate one or more variables to determine their effect on another variable.

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What is the purpose of a control group in an experiment?

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To provide a baseline for comparison against the experimental group.

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What is a variable in research?

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Any characteristic, number, or quantity that can be measured or counted.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics and qualities, while quantitative data involves numerical measurements.

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What is bias in research?

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A systematic error that leads to incorrect conclusions or results.

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What is random sampling?

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A technique where each individual in a population has an equal chance of being selected for the sample.