Lesson 4.2/4.3 Experiments and Using Studies GOOD

Front

What is the importance of random selection in studies?

Back

Random selection is crucial for making inferences about a population because it helps ensure that the sample is representative, reducing bias and increasing the validity of the results.

Front

What are the three principles of experimental design?

Back

The three principles of experimental design are Control, Randomize, and Replicate.

Front

Why is it important to reduce bias in experiments?

Back

Reducing bias is important because it leads to more accurate and reliable results, allowing for valid conclusions to be drawn from the data.

Front

What does subject confidentiality protect?

Back

Subject confidentiality protects personal information and data related to the subjects, but it does not protect the overall experiment results.

Front

How can you determine if a study is an observation or an experiment?

Back

An observation involves watching and recording behavior without manipulation, while an experiment involves manipulating variables to test a hypothesis.

Front

What is the role of control in experimental design?

Back

Control in experimental design helps to eliminate alternative explanations for the results by keeping certain variables constant.

Front

What does replication mean in the context of experiments?

Back

Replication refers to repeating an experiment to confirm the results and ensure reliability.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement or prediction about the relationship between two or more variables.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements and can be counted or measured.

Front

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

Back

The control group serves as a baseline to compare the effects of the experimental treatment, helping to isolate the impact of the independent variable.