Ipseity Daily Pulse · 2026-09-23

What changes after adjustment?

A before-and-after contrast can change when recorded sample composition changes.

By Ceetown · 3 minute read

A before-and-after comparison can change when the people answering change.

For the 20 Ipseity Daily signifiers with the most extreme linear trends, all 20 raw late-half versus early-half comparisons point in the same direction as the corresponding trend. After accounting for recorded age, sample composition, weekday, and month, 19 still do. The typical adjustment moved a contrast by 4.2 percentage points.

The one reversal was single: its raw late-minus-early contrast was -7.1 points, while the adjusted estimate was +1.1 points with a wide respondent-clustered 95% interval from -13.9 to +16.2. That is not evidence of an increase. It is a reminder that a descriptive comparison can depend on who answered and when.

Source: Ipseity Daily download page

Dumbbell plot comparing raw and adjusted late-half minus early-half endorsement contrasts for five positive and five negative linear-trend leaders. All ten displayed adjusted estimates retain their selected trend direction; most clustered intervals cross zero.
Dated visualization for the observation snapshot described in this entry.

Evidence note

The values use canonical microdata through 2026-09-22, retrieved at 2026-09-23T10:09:23Z. The common split is the full dataset window's calendar midpoint: the early period is 2025-07-08 through 2026-02-13, and the late period is 2026-02-14 through 2026-09-22. The models are unweighted and the 20 signifiers were selected from 704 linear trends. No primary trend passed the 5% Benjamini–Hochberg or Bonferroni screen. Adjustment covers only recorded covariates and calendar terms; it does not establish population change. Full estimates and limitations are recorded in CURRENT-FINDINGS.md and outputs/leader-early-late-sensitivity.csv.

Snapshot note: This dated entry and figure are preserved from the stated check. Links to the cumulative report and aggregate tables may show newer data.

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