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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383722

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BTBG15B (BTBG15B)

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

Overview

Valid: 903

Invalid: 97

Type: Discrete

Decimal: 0

loc_start_pos: 105

loc_end_pos: 105

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Not at all	539	59.7%
2	Some	308	34.1%
3	A lot	56	6.2%
Sysmiss		97

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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