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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380094

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CALCULATOR SURVEY\FREQUENCY OF USING CALCULATOR (BNRGCAL2)

Data file: TIMSS-2015-pop2-studen-achievement-allcountries-metadata

Overview

Valid: 761

Invalid: 239

Type: Discrete

Decimal: 0

loc_start_pos: 517

loc_end_pos: 517

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	not at all	234	30.7%
2	very little (for fewer than 5 questions)	326	42.8%
3	somewhat (for between 5 and 10 questions)	173	22.7%
4	quite a lot (for more than 10 questions)	28	3.7%
Sysmiss		239

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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