Evidence & causal reasoning
The Evidence Lab
A good story. But is it a good explanation?
A café queue. A navigation app. A very confident claim. Open the everyday mysteries, choose evidence that could separate the rival stories and build an investigation of your own.
For Class requires the complete Full activity and final report action before assignment printing or downloads. Core and Full length choices, where offered, are available in For Fun. Save a progress backup whenever you need to pause.
Download game · standalone HTML →
Created by Yoav Duman / יואב דומן

Follow the question.
- Try the warm-up and investigate the café and navigation-app cases.
- Design and critique your own investigation and connect evidence to public power.
- Complete the unfamiliar final challenge and review the Full investigation record.
Bring it into class
For Class uses the full 12-step investigation. For Fun offers the shorter Core investigation or Full. Students can pause and restore a progress backup; completing Full unlocks the Class report.
Teaching guide · goals, discussion and assessment →
Student guide · saving and submission →
What to assess
Assess the connection between claim, comparison and evidence; a plausible rival; an informative next observation; and an honest limit. Read the written reasoning. A completion check records work, not the quality of the argument.
Sources and scope
The cases and data are fictional. They teach ways to test explanations; they do not establish real-world effects. A remaining uncertainty can be a well-supported result.