What you can do in ConductCognition today

A test battery is a ready-made set of tests for one research area, run in a fixed order with standard settings. There are 26. Each battery's page gives its tests in order, the time per participant, the devices and languages, an example report and a printable guide. Start a study from a battery and the app keeps its tests, their order and their settings.

Most need a desktop or laptop, usually because they include timed tests. The other 8 also run on phones and tablets. To choose between batteries, the comparison page puts two or three side by side.

Every battery shows an evidence grade from A to D. The grade counts the evidence behind each of its tests: test-retest papers, reliability and validity papers and registered trials. A battery takes the grade most of its tests reach. A minus means some tests have a lower grade, and a battery is never more than one letter above its weakest test. Of the 26, 5 have grade A, 8 have A− and 13 have B.

A study you build gets a grade by the same rule. In the study builder, See why marks the tests that set the letter and the tests that add the minus.

A study can test the same people more than once. Each later visit opens a set number of days after the participant finishes the first and stays open for a set number of days. Participants keep one link, and it opens whichever visit is due.

The participants page shows where each person is in their visits, and you can move a schedule or skip a visit. The longitudinal export gives each score at two visits and the change between them. Repeat visits use no extra places: 100 people at two visits count as 100 places.

You can add the PHQ-8, which asks about depression symptoms, and the GAD-7, which asks about anxiety symptoms, as steps between the tests of a study. They run on the same participant link and are scored with their published bands. Participants never see a score. Exports include a questionnaire file with its codebook, and nothing is charged per question.

The Data section shows which cognitive tests registered clinical studies use as outcomes, from the more than 16,000 studies on ClinicalTrials.gov that name one in an outcome measure. Conditions and tests with enough studies have pages of their own, and 133 pages pair a condition with a test, such as the Trail Making Test in dementia and Alzheimer's disease.

For planning, the trial design benchmark takes a condition, a phase and an intervention type and shows how many similar studies name a library test, their median size and the tests they name most. The 2026 summary of cognitive outcomes in trials is written to cite. It finds that 55% of completed studies have reported no results.

Test pages have Try it now. It runs the test's standard version in your browser, in the same runner participants use, then scores the run with the test's own scorer and shows you the result. Nothing from the run is saved, and you don't need an account. Building a study and testing participants need a free account.