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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380536

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GEN\HOW OFTEN\BEYOND INSTRUCTION (ATBG14D)

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

Overview

Valid: 924

Invalid: 76

Type: Discrete

Decimal: 0

loc_start_pos: 102

loc_end_pos: 102

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Every or almost every lesson	173	18.7%
2	About half the lessons	256	27.7%
3	Some lessons	428	46.3%
4	Never	67	7.3%
Sysmiss		76

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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