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

Page views

383856

Downloads

2774

BTBS25AB (BTBS25AB)

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

Overview

Valid: 702

Invalid: 298

Type: Discrete

Decimal: 0

loc_start_pos: 189

loc_end_pos: 189

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Not applicable	203	28.9%
2	Very well prepared	421	60%
3	Somewhat prepared	67	9.5%
4	Not well prepared	11	1.6%
Sysmiss		298

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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