AI Coherence Score Without Logic in IELTS Writing
Coherence & Cohesion · AI limits · May 2026
Direct answer
Many AI tools score Coherence & Cohesion by counting connectors and paragraph breaks—not whether each sentence follows from the last. An essay can earn AI praise for Moreover and In conclusion while jumping from claim to unrelated example. Examiners read argument chains: position → reason → evidence → link. When AI CC is 7 but TR is 6, you may have cosmetic cohesion without logic—a common inflation trap before exam day.
Surface cohesion vs logical progression
Surface Linking words, paragraph length, topic-looking sentences
Logic Each idea supports the thesis; no orphan examples
Examiner CC Band 7 needs clear progression throughout
Patterns AI over-rewards
| Pattern | AI may see | Examiner sees |
|---|---|---|
| Connector stacking | High CC | Mechanical jumps |
| Template body | Clear structure | Thin TR, list not argument |
| Paraphrased intro | Cohesive opening | No new development |
Audit logic in five minutes
1. Underline the thesis
One sentence the whole essay must prove.
2. Label body sentences
Claim, reason, example, or drift—drift rows get rewritten.
3. Connector strip test
Remove Moreover/Furthermore; if meaning still jumps, CC was cosmetic.
Key takeaways
- AI CC can inflate when connectors mask logic gaps.
- Examiners score progression, not Moreover frequency.
- Map claim → reason → evidence before trusting AI CC.
- Compare TR and CC bands—wide gaps signal surface cohesion.
FAQ
No—examiners reward logical progression; mechanical Moreover chains can still cap at 6.
Some tools flag surface cohesion only—audit with claim-to-conclusion mapping.
Outline argument chains before writing; remove connectors that hide jumps.
Check whether your CC score reflects logic or connector count.
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