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\PREPARED\NUMBER\CONCEPT OF FRACTIONS (ATBM11AD)

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

Overview

Valid: 886

Invalid: 114

Type: Discrete

Decimal: 0

loc_start_pos: 178

loc_end_pos: 178

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Not applicable	100	11.3%
2	Very well prepared	700	79%
3	Somewhat prepared	72	8.1%
4	Not well prepared	14	1.6%
Sysmiss		114

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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