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Research Methods in Science

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Questions and Answers

What does an independent variable typically represent in an experiment?

A variable that remains constant throughout the experiment

A variable that is measured as an outcome

A variable that is manipulated by the researcher (correct)

A variable that only changes under specific conditions

What is a precise measurable definition of what is being studied called?

Dimensional analysis

Quantitative definition (correct)

Descriptive measurement

Qualitative descriptor

Sampling bias occurs when which of the following happens?

The sample size is too large to manage effectively

Certain members of the population are less likely to be included (correct)

The demographic variables are not analyzed properly

Every member of the population has an equal chance of being selected

Interviews and observations are classified as which type of measurement?

<p>Qualitative measures</p> Signup and view all the answers

What does the peer review process typically involve?

<p>The adherence to ethical guidelines and standards</p> Signup and view all the answers

Study Notes

Independent Variables

An independent variable is the factor that is changed or manipulated in an experiment.
It is the variable whose effect is being studied.

Quantitative Measurements

A quantitative measurement is a precise and measurable definition of what is being studied.
It involves numerical data that can be analyzed statistically.

Sampling Bias

Sampling bias occurs when a sample is collected in a way that makes some members of the intended population less likely to be included than others.
This can lead to inaccurate or misleading results because the sample is not representative of the entire population.

Qualitative Measures

Interviews and observations are examples of qualitative measures which focus on gathering non-numerical data.
This data can be descriptive, observational, and subjective.

Peer Review

Peer review involves the evaluation of research by experts in the field.
It helps ensure the quality, validity, and ethical standards of research.

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Description

Test your understanding of key concepts in research methods, including independent variables, quantitative measurements, and sampling bias. This quiz will also cover qualitative measures and the importance of peer review in scientific research.