enem_2019_1mil_cn

44,999,716 responses from 1,000,000 respondents to 45 items.

A version of this table that keeps the option each respondent chose is enem_2019_1mil_cn_nom.

One of 104 tables from the same source; this one measures ENEM Natural Sciences Proficiency Assessment (2019). The others are listed under Related tables.

About this table

DescriptionNatural sciences portion of the 2019 Brazilian ENEM, one-million-person subsample, restricted to main-application items only (issue #955). Binary scored (0/1). Density ~1.0 (single unlinked instrument).
ReferenceMartins, D. M. (2021). Estado da arte das pesquisas sobre ENEM no Brasil: State of the art of research on ENEM in Brazil. Latin American Journal of Development, 3(5), 2898-2907.
DOI10.46814/lajdv3n5-018
LicenceCC BY 4.0
Source datahttps://www.gov.br/inep/pt-br/acesso-a-informacao/dados-abertos/microdados/enem

Size and shape

Responses44,999,716
Respondents1,000,000
Items45
Response categories2
Responses per respondent45.000
Responses per item999993.689
Density1.000
LongitudinalFALSE

Classification

age rangeChild (<18y)
child age (for child-focused studies)Adolescent (12-18y)
sampleRepresentative
construct typeCognitive/educational
measurement toolTest
item formatLikert Scale/selected response
primary language(s)por
construct nameENEM Natural Sciences Proficiency Assessment (2019)

These are classifications the IRW records, not the study’s own words. Some were annotated by hand and some written by an automated tagger whose output is published only where it clears a measured accuracy bar; which values came from which is not recorded per table. Coverage and accuracy per column, and what is held back, are on Tag quality.

This table is in 2 collections. Each membership records how it was decided:

Membership is the IRW’s judgment and is worth checking before you use a collection as a sample. A hand-curated list is a snapshot: it is not re-checked when tables are added, so a table that would qualify may be missing. See Collections.

Item text

This table has item text in the IRW: the wording administered to respondents, not just the response codes.

InstrumentENEM 2019 - CN
Mean words per item1
Mean characters per item2
Mean characters per response37.067
Flesch-Kincaid grade level-3.400

Codebook

This codebook is reconstructed by the IRW from the IRW data standard and the script that built it, enem_2019.R. It is our best reading, not the source’s own codebook, and it may contain mistakes. Where the two disagree, the source data are the authority. If you find an error, please tell us.

ColumnWhat it isSource column
IRW standard columns
idIRW standard Identifier for the focal unit being measured — typically a person, but sometimes another entity (e.g., a word in a lexical task).NU_INSCRICAO
itemIRW standard Item identifier.CO_ITEM
respIRW standard Response value.made in the build script
Other columns
bookletFrom source Not defined by the IRW standard; the source column’s codebook entry gives its meaning.CO_PROVA
positionFrom source Not defined by the IRW standard; the source column’s codebook entry gives its meaning.CO_POSICAO

What item codes and covariate values stand for is in the source’s codebook, Dicionário_Microdados_Enem_2019.xlsx (inside microdados_enem_2019.zip, 660 MB).

Get the data

Browse on Redivissign in to download

This table is larger than Redivis serves without a login, so download it with one of the packages below or while signed in to Redivis.

Or load it directly in R (no account needed with irw 1.4.0 or later) or Python (needs a free Redivis account; the first call opens a browser to sign in):

# R
install.packages("irw")
library(irw)
df <- irw_fetch("enem_2019_1mil_cn")
# Python
pip install irw

import irw
df = irw.fetch("enem_2019_1mil_cn")

How to cite

@article{Martins_2021, title={Estado da arte das pesquisas sobre ENEM no Brasil: State of the art of research on ENEM in Brazil}, volume={3}, ISSN={2674-9297}, url={http://dx.doi.org/10.46814/lajdv3n5-018}, DOI={10.46814/lajdv3n5-018}, number={5}, journal={Latin American Journal of Development}, publisher={South Florida Publishing LLC}, author={Martins, Dayse Marinho}, year={2021}, month=sep, pages={2898–2907} }

Version and provenance

IRW versionv674
Redivis datasetitem_response_warehouse v78.0
Redivis dataset DOI10.57761/yzj1-v654
Manifest pin for this IRW versionv78.0
Metadata sourceirw_meta v59.0