assignment study · open
Does assigned session timing change signal?
Sessions completed in an assigned later, lower-arousal window have different longitudinal signal excess than sessions completed in an assigned daytime window.
Publicly preregistered 8/7/2026, 10:32:27 PM
- Primary outcome
- Mean signal excess between assigned timing arms
- Target sample
- 240
- Analysis
- Intention-to-treat difference in means with a two-sided permutation interval; compliant-only analysis is secondary.
- Correction
- Holm-Bonferroni across preregistered secondary outcomes
- Source
- Owner observation; preregistered as a test, not treated as established evidence.
- Mechanism
- Random assignment; intention-to-treat
Registered arms
daytime window
For this eligible session, work between 10:00 and 14:00 local time.
later window
For this eligible session, work between 21:00 and 23:00 local time.
Participation is free and explicit
Consent is separate from account terms and can be revoked. Revocation excludes your data from future analyses; already-published anonymous aggregates are not retracted.
Published results
No result is publishable before the target sample is reached. Null results will appear here with the same prominence as supported findings.