Level 5 — Advanced · Technical & Evidence-Based Writing
Task 85: Calibrating a Claim to Its Evidence
Write a claim that matches exactly the strength of the evidence behind it, and catch the common error of silently strengthening a hedged claim — the writing mirror of Lesson 85.
Learning Objectives
By the end of this task, you should be able to:
- Rank evidentiary language (proves / demonstrates / suggests / may) and choose the correct tier for given evidence
- Write a claim that does not travel farther than its evidence legitimately supports
- Recognize and avoid silent strengthening — restating a hedged claim in stronger language
Introduction
Lesson 85 gave you a three-tier scale for evidentiary language — proves/establishes at the top, demonstrates/supports in the middle, suggests/may at the bottom — and warned about silent strengthening: quietly restating a cautious "suggests" as a confident "proves." This task asks you to write a claim at the correct tier, and then catch yourself if you drift.
The Rule, for Writing
Core Concept
Match your verb to your evidence. A single small study "suggests." A consistent pattern across many studies "supports" or "demonstrates." Only overwhelming, repeated, controlled evidence earns "proves" or "establishes." Writing "proves" when your evidence only suggests is the single most common calibration error.
Example
Evidence: one six-month pilot at one warehouse showed a 10% drop in picking errors after new signage was installed. Correct: "The pilot suggests better signage may reduce picking errors." Silent strengthening (wrong): "Better signage reduces picking errors" — stated as an established fact from a single small pilot.
Your Turn
Your Turn
A single six-month pilot at one warehouse found that adding barcode scanners at each station reduced picking errors by 15%. No other site has tried it yet. Write two sentences: (1) a correctly calibrated claim about what this evidence supports, and (2) an example of silent strengthening — the same claim restated too strongly — followed by one sentence explaining exactly what makes sentence 2 an overstatement.
Vocabulary in Context
hedgeverbformal
to state a claim cautiously, signaling it isn't fully certain (সতর্কভাবে বলা)
Often with hedge a claim, hedge carefully, hedge appropriately
“Hedge the claim so it matches the strength of the evidence.”
silent strengtheningphrasecourse term
restating a cautious, hedged claim as if it were a confident, established fact (নীরবে দাবি বাড়ানো)
Often with avoid silent strengthening, guard against silent strengthening, silent strengthening of
“Silent strengthening occurs when 'may reduce costs' becomes 'reduces costs'.”
Model Answer
Show a model answer
(1) The pilot suggests that barcode scanners may reduce picking errors, though this is based on a single site over six months. (2) Silently strengthened: "Barcode scanners reduce picking errors by 15%." This overstates because it drops "suggests" and "may," and states a one-site, six-month result as a general, proven fact — a reader would now expect the same 15% drop everywhere, which the evidence never claimed.
Self-Check
Self-Check
- Did your calibrated claim use a hedge word matching the strength of one small pilot?
- Did your "silently strengthened" version genuinely overstate, not just reword?
- Did you name specifically which words were dropped or changed?
Next: Writing 86 — Synthesizing Two Claims: writing one paragraph that combines two sources without erasing their uncertainty.