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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322232

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GEN\HOW OFTEN\DAILY LIVES (BTBG14A)

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

Overview

Valid: 933

Invalid: 67

Type: Discrete

Decimal: 0

loc_start_pos: 97

loc_end_pos: 97

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Every or almost every lesson	308	33%
2	About half the lessons	276	29.6%
3	Some lessons	344	36.9%
4	Never	5	0.5%
Sysmiss		67

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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