Experimentation

What is a variable in an experiment?

Components or elements that make up an experiment.

What is an independent variable?

Part of the experiment we change intentionally.

What is a dependent variable?

Part of the experiment affected by the independent variable.

What are control variables?

Components of the experiment that do NOT change.

How does changing water volume affect plants?

It tests how water volume impacts plant growth.

How does changing temperature affect ice melting?

It tests how temperature impacts the speed of melting.

What is a control group?

Standard of comparison that receives no treatment.

What is an experimental group?

Group that receives treatment or changes in the independent variable.

What is accuracy in an experiment?

How close the measured value is to the true value.

What is reliability in an experiment?

Consistency of results across repeated measurements.

What is validity in an experiment?

Combination of accuracy and reliability in measuring phenomena.

How can we increase accuracy?

By regularly calibrating measuring instruments.

What is the importance of following standardized procedures?

Enhances accuracy in data collection.

What is essential for training in data collection?

Use equipment accurately and follow procedures precisely.

What should be done to reduce individual errors in measurements?

Take multiple measurements and calculate averages.

How can we minimize bias in experiments?

Randomly assign participants or samples to groups.

What is the benefit of using a large sample size?

Improves the reliability of findings.

What should be conducted to assess consistency in experiments?

Conduct multiple trials or replications.

How do we increase validity in experiments?

By increasing the accuracy and reliability of the experiment.

What are control variables used for?

To explain their importance in maintaining experimental conditions.

What is the purpose of peer review in research?

Allows others to check your experiment for areas of improvement.