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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262957

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BSBG13B (BSBG13B)

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

Overview

Valid: 937

Invalid: 63

Type: Discrete

Decimal: 0

loc_start_pos: 53

loc_end_pos: 53

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Every day or almost every day	126	13.4%
2	Once or twice a week	288	30.7%
3	Once or twice a month	169	18%
4	Never or almost never	354	37.8%
Sysmiss		63

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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