undermybelt Verifying Results Before Claiming
Overview
Claiming a finding without fresh verification is dishonesty, not efficiency.
Core principle: Evidence before claims, always.
Violating the letter of this rule is violating the spirit of this rule.
The Iron Law
NO CLAIMS WITHOUT FRESH REPRODUCED EVIDENCE
If you haven't run the analysis in this state and read its actual output, you cannot claim its result. "It was significant earlier" is not evidence now.
The Gate Function
BEFORE claiming any result or expressing satisfaction:
1. IDENTIFY: What command/analysis proves this claim?
2. RUN: Execute it fresh and complete (from the immutable raw data, fixed seed)
3. READ: The actual output — the estimate, the interval, the p-value, the diagnostics
4. CHECK: Do the method's assumptions hold? Does it reproduce?
5. VERIFY: Does the output actually support the claim?
- If NO: state the real result with evidence
- If YES: state the claim WITH the evidence (number + interval)
6. ONLY THEN: make the claim
Skip any step = asserting, not verifying
Common Failures
| Claim | Requires | Not Sufficient |
|---|---|---|
| "The effect is significant" | Fresh run; read estimate, CI, and p | "It was significant before" |
| "There's no effect" | Effect size + interval showing precision | A non-significant p (could be underpowered) |
| "The result reproduces" | Re-run from raw data + fixed seed → same number | "It ran fine earlier" |
| "Assumptions are met" | The diagnostic output, read | "It's probably fine" |
| "The model is good" | Out-of-sample metric | In-sample fit / training accuracy |
| "Data cleaned correctly" | Validation counts (rows in/out, ranges) | "The script ran without error" |
| "Confirmatory finding" | It was pre-registered AND re-run as registered | Matches what I expected |
| "The subagent finished" | Inspect the committed artifacts/diff | The subagent said "done" |
Red Flags - STOP
- Using "should", "probably", "seems to", "looks significant"
- Expressing satisfaction before verification ("Great, it worked!", "Perfect!", "Confirmed!")
- About to write up / report / commit a conclusion without a fresh run
- Reporting a p-value you computed before the latest code change
- Calling a result "reproducible" without having re-run it from raw
- Trusting a subagent's success report
- Describing a non-significant result as "no effect" without checking power/interval
- ANY wording implying a finding without having just produced the evidence
Rationalization Prevention
| Excuse | Reality |
|---|---|
| "It was significant last run" | Re-run it now. Code/data may have changed. |
| "I'm confident in the result" | Confidence is not evidence. |
| "The script ran without errors" | Running ≠ correct. Read the output. |
| "p < .05, so it's real" | p is not the probability the effect is real. Report effect + interval. |
| "p > .05, so no effect" | Could be underpowered. Absence of evidence ≠ evidence of absence. |
| "The subagent reported success" | Verify the artifacts independently. |
| "It reproduces, I'm sure" | Re-run from raw + seed and show the same number. |
| "Different words, so the rule doesn't apply" | Spirit over letter. |
Key Patterns
Significance / effect:
✅ [Re-run the model] [Read: beta=0.23, 95% CI [0.08, 0.38], p=.002] "Exposure raises the outcome; CI excludes zero."
❌ "The effect looked significant."
Reproducibility:
✅ Fresh env → re-run from data/raw with seed → same estimate to reported precision → "Reproduces."
❌ "It ran earlier, so it reproduces."
Null result:
✅ [Read: beta=0.01, 95% CI [-0.12, 0.14]] "No detectable effect; the interval rules out effects larger than ~0.14."
❌ "p=0.3, so there's no effect."
Model performance:
✅ [Held-out test set, used once] [AUC=0.78] "Out-of-sample AUC 0.78."
❌ "Training accuracy is 0.97, the model is great."
Subagent delegation:
✅ Subagent reports done → inspect committed code + output artifact → confirm → report actual state
❌ Trust the report
When To Apply
ALWAYS before:
- Any statement of a result, effect, or significance
- Any claim that an analysis reproduces or that assumptions hold
- Any expression of satisfaction about a finding
- Writing up, reporting, committing a conclusion, or requesting review
- Trusting a subagent's output
Applies to: exact phrases, paraphrases, synonyms, and any implication of a verified finding.
The Bottom Line
Run it fresh. Read the output. Check it reproduces. THEN state the result — with the number and the interval.
This is non-negotiable.
Related Skills
- science-superpowers:investigating-anomalous-results — if verification reveals the result doesn't hold
- science-superpowers:requesting-red-team-review — independent scrutiny after you've verified