📊AP Statistics Review
Experiments and Observational Studies
📊AP Statistics
Review
Experiments and Observational Studies
Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
APA
Resources
In this stream, we cover the differences between observational studies and experiments, how "confounding" may impact observational studies, the features of well-designed experiments (including many vocabulary terms!), and three main types of experiment design.