Exam question 2 · Being a scientist — fair tests, guesses and evidence

Identify the purpose of a control group in an experiment.

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: you, control group · What happens: identify, purpose · To what, where: purpose, experiment

This is exam question 2 of lesson 91 «Being a scientist — fair tests, guesses and evidence» of the world course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.

The question

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Identify	identify	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	3 purpose	det
3	purpose	purpose	NOUN	Number=Sing	1 Identify	obj
4	of	of	ADP	_	7 group	case
5	a	a	DET	Definite=Ind PronType=Art	7 group	det
6	control	control	NOUN	Number=Sing	7 group	compound
7	group	group	NOUN	Number=Sing	3 purpose	nmod
8	in	in	ADP	_	10 experiment	case
9	an	a	DET	Definite=Ind PronType=Art	10 experiment	det
10	experiment	experiment	NOUN	Number=Sing	1 Identify	obl
11	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	identify	imperative	you not said here	the purpose of a control group		a experiment			vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent purpose=Theme
2	purpose		a control group						nom purpose «cognition intransitive»: of=agent

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.

The options

Option 1

It decides the prediction to be tested

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 decides	nsubj
2	decides	decide	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 prediction	det
4	prediction	prediction	NOUN	Number=Sing	2 decides	obj
5	to	to	PART	_	7 tested	mark
6	be	be	AUX	VerbForm=Inf	7 tested	aux:pass
7	tested	test	VERB	Tense=Past VerbForm=Part Voice=Pass	2 decides	advcl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	decide	present	It	the prediction					vn correspond-36.1-1 «NP V S»: agent=Agent prediction=Topic
2	test	to-infinitive · passive							vn assessment-34.1 «NP V NP»

Option 2

It records the results on behalf of others

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 records	nsubj
2	records	record	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 results	det
4	results	result	NOUN	Number=Plur	2 records	obj
5	on	on	ADP	_	6 behalf	case
6	behalf	behalf	NOUN	Number=Sing	2 records	obl
7	of	of	ADP	_	8 others	case
8	others	other	NOUN	Number=Plur	6 behalf	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	record	present	It	the results		behalf of others			vn scribble-25.2-1 «NP V NP PP.destination»: agent=Agent result=Theme on behalf=Destination

Option 3 · ← Mova's choice · ✓ the right answer

It is kept without the change so the results may be compared

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	3 kept	nsubj:pass
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 kept	aux:pass
3	kept	keep	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
4	without	without	ADP	_	6 change	case
5	the	the	DET	Definite=Def PronType=Art	6 change	det
6	change	change	NOUN	Number=Sing	3 kept	obl
7	so	so	SCONJ	_	12 compared	mark
8	the	the	DET	Definite=Def PronType=Art	9 results	det
9	results	result	NOUN	Number=Plur	12 compared	nsubj:pass
10	may	may	AUX	VerbForm=Fin	12 compared	aux
11	be	be	AUX	VerbForm=Inf	12 compared	aux:pass
12	compared	compare	VERB	Tense=Past VerbForm=Part Voice=Pass	3 kept	advcl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	keep	present · passive		It				without the change	vn keep-15.2 «NP V NP»: subject=Theme
2	compare	may · passive		the results					vn amalgamate-22.2-2 «NP V NP»: subject=Patient

Option 4

It receives the greatest amount of the change under examination

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	2 receives	nsubj
2	receives	receive	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	5 amount	det
4	greatest	great	ADJ	Degree=Sup	5 amount	amod
5	amount	amount	NOUN	Number=Sing	2 receives	obj
6	of	of	ADP	_	8 change	case
7	the	the	DET	Definite=Def PronType=Art	8 change	det
8	change	change	NOUN	Number=Sing	5 amount	nmod
9	under	under	ADP	_	10 examination	case
10	examination	examination	NOUN	Number=Sing	8 change	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	receive	present	It	the greatest amount of the change under examination					vn obtain-13.5.2 «NP V NP»: agent=Agent amount=Theme
2	amount			the change under examination					nom amount «possession transitive»: of=patient

Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/e2/