Trends in International Mathematics and Science Study 2015

International, 2015

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Reference ID

int-iea-timss-2015-v1

Producer(s)

TIMSS & PIRLS International Study Center

Collections

TIMSS and PIRLS

Metadata

DDI/XML JSON

Created on

Mar 20, 2021

Last modified

Mar 20, 2021

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385030

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BSBG12 (BSBG12)

Data file: TIMSS-2015-pop2-bg-stu-allcountries-metadata

Overview

Valid: 977

Invalid: 23

Type: Discrete

Decimal: 0

loc_start_pos: 51

loc_end_pos: 51

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Every day	460	47.1%
2	Most days	186	19%
3	Sometimes	224	22.9%
4	Never or almost never	107	11%
Sysmiss		23

Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

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