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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263133

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BSBG13A (BSBG13A)

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

Overview

Valid: 964

Invalid: 36

Type: Discrete

Decimal: 0

loc_start_pos: 52

loc_end_pos: 52

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Every day or almost every day	482	50%
2	Once or twice a week	233	24.2%
3	Once or twice a month	127	13.2%
4	Never or almost never	122	12.7%
Sysmiss		36

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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