---
title: The thing you change on purpose is called the variable you are testi… — Being a scientist — fair tests, guesses and evid… · tree and pragmatics
description: The thing you change on purpose is called the variable you are testing. Who acts: you. A sentence of the lesson «Being a scientist — fair tests, guesses and evidence» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/91-being-a-scientist/7/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / [Being a scientist — fair tests, guesse…](https://md.mova.elamur.ai/free/en/corpora/school/world/91-being-a-scientist/) / 7

# Being a scientist — fair tests, guesses and evidence, sentence 7

<!-- .ven lang=en -->
The thing you change on purpose is called the variable you are testing.

<!-- .vintro -->
**Who acts:** you · **What happens:** change, call, test · **To what, where:** thing, purpose, variable · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «Being a scientist — fair tests, guesses and evidence» of the world course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (you), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:091-being-a-scientist.lesson:7
# text = The thing you change on purpose is called the variable you are testing.
# source = school lesson (ours)
# course = world
# lesson = 091-being-a-scientist.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): no change
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	thing	thing	NOUN	NN	Number=Sing	8	nsubj:pass	_	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	_	_
4	change	change	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	2	acl:relcl	_	_
5	on	on	ADP	IN	_	6	case	_	_
6	purpose	purpose	NOUN	NN	Number=Sing	4	obl	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
8	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	variable	variable	NOUN	NN	Number=Sing	8	xcomp	_	_
11	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	13	nsubj	_	_
12	are	be	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	13	aux	_	_
13	testing	test	VERB	VBG	Tense=Pres|VerbForm=Part	10	acl:relcl	_	_
14	.	.	PUNCT	.	_	8	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | present | you | the thing *not said here* |  | purpose |  |  | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent thing=Patient |
| 2 | **call** | present · passive |  | the thing |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: subject=Recipient |
| 3 | **test** | present · progressive | you | the variable *not said here* |  |  |  |  | vn assessment-34.1 «NP V NP»: agent=Agent variable=Theme |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

<!-- div src -->

**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:world:091-being-a-scientist.lesson:7`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): no change. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

<!-- /div -->

<!-- pn -->
- ← previous: [Being a scientist — fair tests, guesse…, 6](https://md.mova.elamur.ai/free/en/corpora/school/world/91-being-a-scientist/6/)
- next →: [Being a scientist — fair tests, guesse…, 8](https://md.mova.elamur.ai/free/en/corpora/school/world/91-being-a-scientist/8/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/91-being-a-scientist/)