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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MAT\TOPICS\DATA DISPLAY\READ AND DISPLAY DATA (ATBM06CA)

Data file: timss-2015-pop1-bg-teacher-allcountries-metadata

Overview

Valid: 673

Invalid: 327

Type: Discrete

Decimal: 0

loc_start_pos: 158

loc_end_pos: 158

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Mostly taught before this year	201	29.9%
2	Mostly taught this year	347	51.6%
3	Not yet taught or just introduced	125	18.6%
Sysmiss		327

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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