Experiment vs Observation

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What is a Sample?

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A sample is a small portion of the population used to gather data from.

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What is an Observational Study?

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An observational study is a type of research where the researcher observes subjects in their natural environment without manipulation.

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What is the difference between an Experiment and an Observational Study?

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An experiment involves manipulating variables to determine cause and effect, while an observational study involves observing subjects without manipulation.

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What is a Population in research?

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A population is the entire group of individuals or instances about whom we hope to learn.

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What is Bias in research?

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Bias refers to any systematic error in an experiment that leads to incorrect conclusions.

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What is the purpose of using a Sample in research?

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The purpose of using a sample is to make inferences about the population without having to study the entire group.

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Why is it important to have a representative Sample?

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A representative sample accurately reflects the characteristics of the population, ensuring valid results.

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What is the significance of the control group in an Experiment?

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The control group serves as a baseline to compare the effects of the experimental treatment.

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What does it mean to 'manipulate variables' in an Experiment?

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Manipulating variables means changing one or more factors to observe the effect on another variable.

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What is a confounding variable?

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A confounding variable is an outside influence that can affect the results of an experiment.