Course description

Numbers can clarify a report, but they can also hide important choices. A percentage needs a starting amount, a chart needs a meaningful scale, and a study result needs a population, a measurement, and a method. This course explains those parts in ordinary language and works through the calculations when they matter. It covers changing rates, risk headlines, chart design, survey evidence, and the difference between an observed result and a justified explanation. The final lesson follows scientific claims through publication, review, replication, and correction. No advanced mathematics or prior research training is required.

Topics covered

• Percentages, rates, and risk headlines
• What a chart shows and what its design changes
• Who answered the questions
• What a study can establish
• How scientific knowledge develops
• media literacy
• Beginner

Prerequisites and next steps

This course belongs to Media Literacy. Start with the first step, then work through each level in order before moving back to the path.