> For the complete documentation index, see [llms.txt](https://api-docs.speechace.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api-docs.speechace.com/api-reference/score-speech-open-ended/per-metric-feedback.md).

# Per metric feedback

The API also offers detailed feedback on each of the Pronunciation, Fluency, Vocabulary, Grammar and Cohesion metrics. Such feedback can be used to explain why a user got a low score on a specific metric. Such feedback is available in the following nodes:

<table><thead><tr><th width="188">Node</th><th>Description</th></tr></thead><tbody><tr><td>fluency</td><td>This node contains <a href="/pages/Qd2DoQIAUsxraBWYNEOC"><strong>fluency</strong></a> metrics and sub-scores for the overall utterance and for each segment (sentence) within the utterance.</td></tr><tr><td>word_score_list[]</td><td>This node contains <a href="/pages/H0hoZyGd3ZOIVlASwcEy"><strong>pronunciation</strong></a> scores and metrics for each word, syllable, and phoneme within the utterance.</td></tr><tr><td>grammar</td><td>This node contains <strong>grammar</strong> metrics, errors and feedback for the overall utterance.</td></tr><tr><td>vocabulary</td><td>This node contains <strong>vocabulary</strong> metrics, errors and feedback for the overall utterance.</td></tr><tr><td>coherence</td><td>This node contains <strong>coherence</strong> metrics, errors and feedback for the overall utterance.</td></tr></tbody></table>

Details regarding [fluency](/features/scripted-activities/fluency-scoring.md) and [pronunciation](/features/scripted-activities/pronunciation-scoring.md) scoring were explained in detail in earlier parts of this documentation. Each of the Grammar, Vocabulary, and Coherence feedback metrics has 3 sub-elements:

1. **score:** on a scale of 1 to 10
2. **level:** an interpretation of the score as low/mid/high
3. **message:** a feedback message if the score is low.

In the next few sections, we will review the grammar, vocabulary and coherence scores in detail:


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://api-docs.speechace.com/api-reference/score-speech-open-ended/per-metric-feedback.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.