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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383908

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BTBS17D (BTBS17D)

Data file: TIMSS-2015-pop2-bg-teacher-sci-allcountries-metadata

Overview

Valid: 896

Invalid: 104

Type: Discrete

Decimal: 0

loc_start_pos: 117

loc_end_pos: 117

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Very high	292	32.6%
2	High	465	51.9%
3	Medium	138	15.4%
4	Low	1	0.1%
Sysmiss		104

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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