Casa ESL · C1 Advanced · Unit 3 of 20 · Step 1
Hedging Language (Advanced)
Name
Date
Vocabulary
tentative
adjectiveNot certain or fixed; provisional or cautious.
"The researchers offered a tentative explanation for the anomalous results."
corroborate
verbTo confirm or give support to a statement, theory, or finding.
"Subsequent experiments corroborated the initial findings."
anomalous
adjectiveDeviating from what is standard, normal, or expected.
"The anomalous data point was excluded from the final analysis."
postulate
verbTo suggest or assume the existence or truth of something as a basis for reasoning.
"Darwin postulated that species evolve through natural selection."
replicate
verbTo repeat a scientific experiment or study to obtain consistent results.
"The team attempted to replicate the findings but obtained different results."
caveat
nounA warning or qualification; a limitation that must be considered.
"The report came with several important caveats about sample size."
extrapolate
verbTo extend known data or experience into an unknown area to make assumptions.
"It would be unwise to extrapolate from such a small sample."
inconclusive
adjectiveNot leading to a firm conclusion or definitive result.
"The evidence remains inconclusive, and further research is warranted."
Grammar Focus
Hedging language (advanced)
Hedging allows writers and speakers to express claims with appropriate caution. Advanced hedging devices include: modal expressions (It would appear that, This may well indicate), impersonal constructions (One might argue that, There is some evidence to suggest), adverbial hedges (arguably, conceivably, to some extent), and lexical verbs (tend to, appear to, seem to). These devices signal that the writer acknowledges uncertainty and avoids overstating conclusions.
It would appear that the initial hypothesis requires significant modification.
One might argue that the methodology was insufficiently rigorous.
There is some evidence to suggest that the treatment is effective, though further trials are needed.
The results arguably indicate a correlation, but causation cannot be established at this stage.
Exercises
Exercise 1
Complete each sentence with an appropriate hedging expression from the box: arguably / it would appear / one might argue / there is some evidence to suggest / to some extent
1. , the new policy has been effective, though not without significant drawbacks.
2. that diet plays a role in cognitive decline, but the data is far from conclusive.
3. that the sample size was too small to draw reliable conclusions.
4. that the original results were influenced by selection bias.
5. This is the most significant discovery in the field this decade.
Exercise 2
Choose the sentence that uses hedging most appropriately for an academic context.
1. Reporting preliminary findings:
2. Discussing a disputed theory:
3. Presenting data with limitations:
Reading
The Art of Scientific Caution
To the casual reader, the language of scientific papers may appear frustratingly vague. Phrases such as 'the data would seem to indicate' or 'there is some evidence to suggest' might give the impression that researchers are unwilling to commit to their own findings. However, this caution — known as hedging — serves a vital epistemological function. Science, by its very nature, deals in probabilities rather than certainties. A single study, however well-designed, cannot definitively prove a hypothesis; it can only provide evidence that is consistent with it. The use of tentative language reflects an awareness that future research may corroborate, modify, or entirely overturn current findings. One might argue that hedging also performs a social function within the academic community: by presenting claims modestly, researchers invite dialogue rather than confrontation. It would appear that the most respected scientists are often those who are most careful in their assertions. Nevertheless, there is arguably a point at which excessive hedging undermines clarity and renders communication ineffective. The challenge for advanced learners of English is to calibrate their hedging precisely — strong enough to be taken seriously, yet cautious enough to remain intellectually honest.
1. Why does the passage argue that hedging serves a 'vital epistemological function'?
2. What social function of hedging does the passage identify?
Speaking
Discuss these questions with a partner or your teacher.
Writing
Write a paragraph (6–8 sentences) summarising a scientific topic you are familiar with. Use at least five different hedging devices to present the information with appropriate academic caution.
Example: There is considerable evidence to suggest that sleep deprivation negatively affects cognitive performance. It would appear that even moderate reductions in sleep — arguably as little as one hour per night — may impair decision-making and memory consolidation. One might argue that modern lifestyles, with their emphasis on productivity, tend to undervalue the importance of adequate rest. The long-term health consequences are not yet fully understood, though preliminary research seems to indicate links to cardiovascular disease.
Answer Key — For Teacher Use
Exercise 1
1. To some extent · 2. There is some evidence to suggest · 3. One might argue · 4. It would appear · 5. arguably
Exercise 2
1. The drug appears to show promising results in early trials. · 2. One might question whether this theory adequately accounts for all the evidence. · 3. The data suggests a possible correlation, though further research is needed.
Reading Comprehension
1. Because science deals in probabilities rather than certainties, and a single study cannot definitively prove a hypothesis — only provide evidence consistent with it. Hedging reflects this inherent uncertainty. · 2. By presenting claims modestly, researchers invite dialogue rather than confrontation within the academic community.