Design of experiments

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/design-of-experiments

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the originator?Sir Ronald Fisher, early 20th century
2. What is the core methodology?Systematic planning and execution of experiments to efficiently study cause-and-effect relationships
3. What is Design of Experiments (DOE)?DOE is a way scientists plan tests so they learn the most from the least work. It helps them see how different things affect the result.
4. Why do scientists use DOE instead of just testing one thing at a time?Testing one thing at a time can miss how things work together. DOE lets scientists look at many factors together, so they know exactly what causes changes.

Factorial Design: An experimental design where all possible combinations of factor levels are tested.
Randomization: Assigning experimental units to treatments randomly to avoid bias.
Replication: Repeating an experimental run to estimate variability and improve precision.