AMDM_Flashcard

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What is an observational study?

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An observational study is a research method where the researcher observes and records behavior or outcomes without manipulating any variables. It is used to identify correlations or patterns.

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What is an experiment?

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An experiment is a research method where the researcher manipulates one or more variables to determine their effect on a dependent variable, allowing for cause-and-effect conclusions.

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

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The main difference is that in an observational study, the researcher does not intervene or manipulate variables, while in an experiment, the researcher actively manipulates variables to observe effects.

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What is a control group in an experiment?

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A control group is a group in an experiment that does not receive the treatment or intervention being tested, serving as a baseline to compare the effects of the treatment.

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What is a sample in research?

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A sample is a subset of a population selected for observation and analysis in a study, used to make inferences about the larger population.

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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 through research.

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What does it mean to randomize in an experiment?

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Randomization is the process of randomly assigning participants to different groups in an experiment to ensure that each group is similar and to reduce bias.

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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 and can affect the outcome of a study.

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What is a confounding variable?

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A confounding variable is an outside influence that changes the effect of a dependent and independent variable, potentially leading to erroneous conclusions.

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What is the purpose of a hypothesis in research?

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A hypothesis is a testable statement predicting the relationship between variables, guiding the research process.