This free site leads students to glean evidence from the research literature, articulate theories, and consider whether each piece of evidence supports or undermines each theory.
See example charts on sleep and memory or heliocentricism vs. geocentricism.
Working scientists find the site useful for quickly creating a compact representation of the evidence for and against competing hypotheses.
Read more about evidence-charting in Alex's blog.
Drop us a line (feedback@evidencechart.com). We're interested in hearing ideas for improvements.