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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263036

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BSBG11 (BSBG11)

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

Overview

Valid: 947

Invalid: 53

Type: Discrete

Decimal: 0

loc_start_pos: 50

loc_end_pos: 50

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Once a week or more	61	6.4%
2	Once every two weeks	80	8.4%
3	Once a month	232	24.5%
4	Never or almost never	574	60.6%
Sysmiss		53

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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