Studio 9 — Write, bound, and disclose
Studio 9
Write the claim you can defend, bounded by what your evidence supports, with your AI use disclosed.
Studio 9
This studio closes with Milestone 9: Your bounded claims, a short chapter of its own after the lessons. What it asks you to produce. A stand-alone research note or report draft, a claim-to-evidence table, and your AI disclosure statement.
Studio 9 · Road map
Lesson 1 of this studio · Chapter 28
the verb in your headline, and how far your evidence lets it reach
Chapter 28
Your analysis printed a number. Now you decide the sentence that number lets you assert: the headline you will show in public and defend out loud, worded so its verb stays inside what your design established and its uncertainty rides in the same eye-span. You choose the words. You lock them. You never let a tool talk your claim past its boundary.
Chapter 28 · Key terms
Uncertainty in the same eye-span
the interval or caveat sits right beside the claim, not in a footnote (Wasserstein & Lazar 2016).
Traceability
every number you show walks back to the exact notebook cell that produced it.
Chapter 28 · Why this decision matters
If the headline reads ‘lowers blood pressure’ but the study only watched who chose to walk, I stop reading.
Chapter 28 · Why this decision matters
Chapter 28 · The concept
Result
a number your analysis produced, such as a difference of 6 points between two group averages
Claim
a sentence you assert and will defend, such as ‘the walking group had lower blood pressure’
Chapter 28 · The concept
Question
what you set out to learn, and its kind comes from its own words
Identification status
whether this design can actually deliver that answer
Chapter 28 · The concept
Chapter 28 · The concept
Chapter 28 · The concept
Your claim boundary lives in the headline verb.
Chapter 28 · The concept
Chapter 28 · A worked example
Chapter 28 · A worked example
Chapter 28 · A worked example
Chapter 28 · A worked example
In this sample, more-active volunteers averaged about 6 points lower resting systolic blood pressure (95% interval: 1 to 11); this is an observed association, and this design does not identify whether walking caused the drop.
Chapter 28 · A worked example
import numpy as np, pandas as pd
SEED = 464
rng = np.random.default_rng(SEED)
# Forty volunteers who CHOSE how much they walk. Age drives both.
n = 40
age = np.r_[rng.normal(31, 7, 20), rng.normal(43, 7, 20)] # active are younger
active = np.r_[np.ones(20, bool), np.zeros(20, bool)]
systolic = np.round(112 + 0.5 * age + rng.normal(0, 6, n))
gap = systolic[~active].mean() - systolic[active].mean()
print(f"active group mean systolic : {systolic[active].mean():.0f}")
print(f"less-active group mean systolic : {systolic[~active].mean():.0f}")
print(f"observed gap : {gap:.0f} points")
print(f"mean age, active vs less-active : {age[active].mean():.0f} vs "
f"{age[~active].mean():.0f}")
print("\nnobody was assigned to walk. the age line is one difference you can")
print("see; the design leaves every unseen one untouched, so the verb stays")
print("'is associated with'")Chapter 28
Where the tool failed
You paste your honest headline into a tool and ask it to make it “punchier.” It returns, with total confidence, “Walking Reduces Blood Pressure by 6 Points.” It reads beautifully and it is wrong. The tool upgraded your verb from an association to a cause and dropped your interval, a silent scope change dressed up as a copy edit.
Chapter 28 · An AI failure case
Chapter 28
This stays yours
Three calls stay yours. You choose the verb in your headline, the one word that fixes your claim boundary. You make the defend-or-concede call when a question pushes on that boundary out loud. And you make the lock decision: the judgment that every number is traced, every citation resolves, and the claim is ready to be final. A tool can draft questions and hunt sources, but it cannot decide what your evidence licenses or when your claim is earned.
Chapter 28 · Your move
Work it in the companion notebook with Chapter 28 open beside it. Log every delegation in your AI Research Ledger.
Lesson 2 of this studio · Chapter 29
for each claim you make, which specific evidence backs it and where that evidence can be found
Chapter 29
For every claim your work makes in public, decide which exact piece of evidence backs it, where that evidence lives, and what it does not establish. Then write all three in one row of a claim–evidence table, before the claim reaches anywhere a stranger can point at it.
Chapter 29 · Why this decision matters
Walk me to the line that made it and I trust the whole poster. Say ‘it’s in the analysis somewhere’ and I stop believing every other number up there.
Chapter 29 · Why this decision matters
Chapter 29 · The concept
Chapter 29 · The concept
Claim
the statement you assert as true
Evidence
the exact result or source that backs the claim, with its uncertainty
Trace
where a number was actually produced, named precisely enough to open
Boundary
the line between what the evidence licenses and what it does not
turnout = ballots.sum() / registered.sum() runs.”Chapter 29 · The concept
Chapter 29 · A worked example
Chapter 29 · A worked example
Chapter 29 · A worked example
Chapter 29 · A worked example
Chapter 29 · A worked example
# the traced line. That is the address Trace points at.import numpy as np, pandas as pd
SEED = 464
rng = np.random.default_rng(SEED)
# Thirty sampled precincts: ballots cast and registered voters.
registered = rng.integers(2300, 3000, size=30)
rate = np.clip(rng.normal(0.625, 0.050, size=30), 0.35, 0.85)
ballots = np.round(registered * rate).astype(int)
turnout = ballots.sum() / registered.sum() # the traced line
spread = 1.96 * rate.std(ddof=1) / np.sqrt(len(rate)) * 100
print(f"precincts sampled : {len(registered)}")
print(f"ballots cast : {ballots.sum():,}")
print(f"registered voters : {registered.sum():,}")
print(f"turnout : {turnout*100:.1f} ± {spread:.1f} percent")
print("\nthat is the number your Trace cell must point at. any figure on the")
print("board that this line does not produce is untraceable, whoever published it")Chapter 29
Where the tool failed
You paste your poster text and ask an AI tool to build the whole claim–evidence table for you. It returns a clean, complete grid, every cell filled, and the trace column reads confidently: “turnout value from cell 14.” You almost accept it. Then you open cell 14, and it totals the registered voters; it never divides. The rate you report is produced two cells later, in cell 16. The tool guessed a plausible cell number and filled it with full confidence, and its tidy finished table hid the wrong trace behind a polished look.
Chapter 29 · An AI failure case
Chapter 29
This stays yours
The wording of each claim, the judgment that a piece of evidence actually backs it, and the boundary each claim carries stay yours. An AI can list claims and draft rows, but it cannot open your notebook cell to confirm a number is real, and it cannot decide the evidence is honest enough to print. The call that the table is complete and the work is locked is yours to declare and defend.
Chapter 29 · Your move
Work it in the companion notebook with Chapter 29 open beside it. Log every delegation in your AI Research Ledger.
Lesson 3 of this studio · Chapter 30
which AI uses you disclose, and what you claim you did to check each one
Chapter 30
Decide exactly what you will say about every AI tool you used: which tool, on which task, and how you checked what came back. Then record it, so when someone asks “did you use AI, and how did you verify it?” you answer from a checkable record instead of from memory.
Chapter 30 · Key terms
AI disclosure
a truthful statement of where and how you used an AI tool in your work (International Committee of Medical Journal Editors 2026).
Research integrity
the practice of keeping your work honest and traceable, so a reader can see where each result came from and trust it (ALLEA – All European Academies 2023).
Chapter 30 · Why this decision matters
“I am not going to penalize you for using an AI tool. I am going to penalize you for not being able to tell me where you used it and how you checked it. A result I cannot trace back to a source and a verification is a result I cannot trust.”
Chapter 30 · Why this decision matters
Chapter 30 · The concept
“I used Gemini to draft the code that computed my coverage ratio, and I recomputed that number by hand before reporting it.”
Chapter 30 · The concept
Three parts make a disclosure complete by this book’s standard.
Chapter 30 · The concept
Chapter 30 · A worked example
Chapter 30 · A worked example
Chapter 30 · A worked example
Chapter 30 · A worked example
Primary-source reading
you opened the company’s published annual report and confirmed the operating income the tool gave you
Alternative code
you recomputed the same number a second way, instead of trusting the AI-generated cell
Chapter 30 · A worked example
# The number the AI code reported, recomputed by hand.
operating_income = 276 # USD millions, confirmed against the annual report
interest_expense = 131 # USD millions, from the same annual report
coverage_ratio = operating_income / interest_expense
print(round(coverage_ratio, 2)) # 2.11 — matches the AI-generated cellChapter 30 · A worked example
Chapter 30
Where the tool failed
You ask a tool to “write my AI-use disclosure from these notes,” and it hands back a polished paragraph: “All AI-generated outputs were independently verified against primary sources.” It reads beautifully, and it is false. You verified the operating income against the annual report, but you never independently checked the interest figure the same tool helped you pull. The sentence upgraded one real check into a blanket claim of “all.”
Chapter 30 · An AI failure case
Chapter 30
This stays yours
The honesty of the disclosure is yours alone. You decide which uses to disclose (including the one you would rather not mention), whether a verification you claim actually happened, and whether the final statement is true. A tool can format your ledger into a clean paragraph. It cannot know what you really did or certify that you checked it. Signing your name to a disclosure you cannot back is the integrity failure this chapter exists to prevent.
Chapter 30 · Your move
Work it in the companion notebook with Chapter 30 open beside it. Log every delegation in your AI Research Ledger.
Lesson 4 of this studio · Chapter 31
which finding leads your written note, and how big each claim is allowed to be once your voice is no longer in the room
Chapter 31
When you turn your research dossier into a written note, decide which finding has earned the headline and exactly how big each claim is allowed to be given your evidence, then package the note so a stranger can rerun it and reach your number without you in the room. Whatever you present along the way — a poster, a talk, a brief — is one input to that note, never its source.
Chapter 31 · Key terms
Working logic
how the dossier and any presentation of it speak: compressed records and, when you present, your live voice filling the silences.
Paper logic
communication that must stand alone on the page, where every claim is argued in prose because you are not there to answer.
Chapter 31 · Why this decision matters
“Show me your results in the order you trust them. If your flashiest number comes from one lucky run and it leads the paper, I already know how this review ends. I do not want your most surprising result first. I want your most defensible one.” — a conference reviewer
Chapter 31 · Why this decision matters
When you present, your voice fills the silences. The page has no voice.
Chapter 31 · The concept
Chapter 31 · The concept
Problem–gap–question spine
the real trouble your work responds to, the specific thing prior retrievable work has not established, and the answerable question that closes exactly that gap
Evidence density
the share of a paragraph resting on sources a reader could open rather than bare assertion
Chapter 31 · The concept
Results hierarchy
the order you present findings in, best-supported first and fragile last
Chapter 31 · The concept
Reproducibility capsule
everything a stranger needs to rebuild your number and nothing they must guess
Restart-and-run-all
clear everything, run every cell top to bottom, and the headline number returns
Chapter 31 · A worked example
Chapter 31 · A worked example
Chapter 31 · A worked example
Chapter 31 · A worked example
Chapter 31 · A worked example
import numpy as np, pandas as pd
SEED = 464
rng = np.random.default_rng(SEED)
n = 1000
service = rng.gamma(2.0, 55.0, size=n) # ordinary counter service
preorder = rng.gamma(2.0, 36.0, size=n) # mobile pre-order
med_drop = 1 - np.median(preorder) / np.median(service)
boot = [1 - np.median(rng.choice(preorder, n)) / np.median(rng.choice(service, n))
for _ in range(2000)]
lo, hi = np.percentile(boot, [2.5, 97.5])
luckiest = 1 - preorder.min() / np.median(service)
print(f"median wait, ordinary service : {np.median(service):.0f} s")
print(f"median wait, mobile pre-order : {np.median(preorder):.0f} s")
print(f"median drop : {med_drop*100:.0f}% "
f"[{lo*100:.0f}%, {hi*100:.0f}%]")
print(f"the single luckiest customer : {luckiest*100:.0f}% faster")
print("\nthe headline is the first number with its interval. the last one is")
print("one observation, and it goes at the back of the note labelled as such")Chapter 31
Where the tool failed
You paste your discussion into your AI and ask it to make the writing sharper. It hands back cleaner prose, and it runs through your spell-check without a flag. Buried in the polish, one sentence has changed size. Your original said “median wait time dropped about 38% on this simulated arrival pattern.” The rewrite says “mobile pre-order makes the shop roughly 38% faster.” The word median is gone, the demand-pattern boundary is gone, and a measurement on simulated demand now promises every customer a shorter wait. The sentence reads better and claims more.
Chapter 31 · An AI failure case
Chapter 31
This stays yours
Three calls stay yours no matter how fluent the tool is. Which finding is your headline, how big that claim is allowed to be, and which sources are real are never delegated. An AI can sharpen a sentence, but a sharper sentence is not a bigger finding, and clean prose is exactly how an overclaim sneaks in. You own the words you put your name on, their boundary, and their uncertainty.
Chapter 31 · Your move
Work it in the companion notebook with Chapter 31 open beside it. Log every delegation in your AI Research Ledger.
Studio 9 closes here
What the lessons handed you becomes one artifact you can defend.
Milestone 9
The artifact
What this milestone produces. A stand-alone research note or report draft, a claim-to-evidence table, and your AI disclosure statement.
Milestone 9 · Check before you start
Milestone 9 · In the studio
Milestone 9 · Every studio, these four
Ethics, permissions, and data exposure
Disclosure includes what you sent to tools, not only what they produced.
Evidence, provenance, and reproducibility
A claim with no row in the table does not appear in the draft.
AI activity, verification, and human decisions
The sentence that ships is yours, whatever drafted it.
Uncertainty, claim boundary, and revision history
Findings are never communicated as certainties.
Milestone 9
How the record works
Your milestone artifact is a dated, numbered version with the reason for the version attached. When later evidence changes it, you write the next version rather than editing the last one, because the sequence of changes is itself part of your research record.
AI is your arm and your research assistant, not your brain.
AI can review AI, and a second model is a real auditor of the first. The last decision is always human.

EDR|AI · Studio 9 — Write, bound, and disclose