Stating the limits of a conclusion means saying how far the evidence reaches: which people, which place, which time and which questions it leaves open. Done well, it makes your conclusion more believable, not less.
This lesson builds on addressing a counterargument fairly and uses ideas from data interpretation and limitations.
Which four checks reveal most limits?
Sample: how many were asked, and how were they chosen? A small group, or a group who volunteered, supports only a modest claim.
Place: where was the evidence gathered? One school is not every school.
Time: when? Opinions and prices change.
Missing evidence: what would you want to know that the source never measured?
How do you match your wording to the evidence?
Choose language by strength.
“Shows” and “proves” suit very strong, wide evidence. “Suggests” and “points to” suit a small or narrow sample. “It is not yet clear whether” suits a gap.
Then attach the limit to the claim in the same sentence. That keeps the conclusion and its boundary together.
Worked example
All figures are invented. The Sekolah Contoh Eco Club Survey asked 40 Year 10 students during one week in March. It found that 28 would use reusable trays.
Step 1, compute the figure. 28 ÷ 40 = 0.7, so 70%.
Step 2, run the four checks.
- Sample: 40 students, all Year 10. How they were chosen is not stated.
- Place: one school.
- Time: one week in March.
- Missing: whether students would still use trays after the novelty fades, and what the canteen’s washing costs would be.
Step 3, draft an overclaimed conclusion. “Students want reusable trays.” This covers all students, always, which the survey cannot show.
Step 4, rewrite with limits. “In one week in March, 70% of 40 surveyed Year 10 students at Sekolah Contoh said they would use reusable trays. This suggests there is some support for a trial in this school, but the survey does not show what other year groups think or whether use would last.”
Step 5, check the wording. The verb is “suggests”, the group is named and the gap is stated in one sentence.
The mistake to watch for
Two opposite slips are common.
Overclaim: “70% of students want reusable trays, so the school should switch.”
This turns 28 of 40 Year 10 students into “students” and moves from an opinion to a decision.
Over-hedge: “Perhaps, in some ways, it may possibly be that a few students might like trays.”
This hides a clear finding. The 70% figure is real and deserves a clear statement.
Correction: state the finding plainly, then state the boundary plainly, as in step 4.
Self-check
1. A poll of 25 students at one school finds 20 prefer a later start time. What percentage is that, and which verb fits: “proves” or “suggests”?
Show answer
20 ÷ 25 = 0.8, so 80%. "Suggests" fits, because the sample is small and from one school.2. Name two limits of a conclusion about “teenagers in Malaysia” drawn from one school’s survey.
Show answer
Any two of: one school is not the whole country; the sample size is small; the way students were chosen is unknown; the survey covers one time only.3. Rewrite for accuracy: “Everyone thinks the new timetable is better.” Evidence: 9 of 12 teachers in one department agreed.
Show answer
For example: "9 of 12 teachers in one department said the new timetable is better, which suggests support in that department but does not show the views of other staff or students."Where does this lead next?
With limits stated, you are ready to join everything together in developing a qualified conclusion. The overall route is in the reasoned explanation module.
Matching a verb such as “suggests” or “shows” to the evidence takes practice. A teacher in online one-to-one Global Perspectives tuition can check your wording against your sources.