Reports

A finished study's readout: every video's lift, every subgroup, and what the result can and cannot establish.

A test is only worth what you can read and defend from it. Reports turns a finished study into its readout.

Find a report

Reports gives a card for each report. A study of several waves, such as Massachusetts Message Testing, has a card for its executive summary and one for each wave. The methodology has its own.

Read a wave

• Executive summary: each video's lift in ballot support against that wave's placebo.
• The video cards: lift in ballot choice and in comprehension, with Watch video.
• Subgroups: the lift for each group.

The up and down arrows on a block move it within its run; the order is kept for that page in your browser.

Detectable and inconclusive

A lift is detectable when it meets the study's stated threshold against the placebo, 90% for the Massachusetts waves. Inconclusive means the test didn't detect an effect at that threshold. It isn't proof the effect is zero. A small subgroup is marked as a small sample.

Report 2

Report 2 opens the same studies section by section, with a contents rail that tracks the page: Summary, The videos, Outcomes, Subgroups, Pairings, How the test worked, and What it can and cannot establish. Each section sets every wave side by side, and the page prints as a document.