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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321210

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GEN\LIMIT TEACHING\LACKING KNOWLEDGE (ATBG15A)

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

Overview

Valid: 906

Invalid: 94

Type: Discrete

Decimal: 0

loc_start_pos: 106

loc_end_pos: 106

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Not at all	85	9.4%
2	Some	585	64.6%
3	A lot	236	26%
Sysmiss		94

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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