Trends in International Mathematics and Science Study 2007

International, 2007

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Reference ID

int-iea-timss-2007-v1.1

Producer(s)

TIMSS & PIRLS International Study Center

Collections

TIMSS and PIRLS

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Documentation in PDF DDI/XML JSON

Created on

May 08, 2012

Last modified

May 25, 2020

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1079301

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organisms that give birth or lay eggs(2) (s031252)

Data file: TIMSS 2007 - Bridge Population 1 - Student Written Assessment - All Countries v1

Overview

Valid: 0

Invalid: 0

Type: Discrete

Decimal: 0

Width: 2

Range: 10 - 99

Format: Numeric

Questions and instructions

Categories

Value	Category
10	partial response
11	partial response
20	correct response
79	incorrect response
96	not reached
99	omitted

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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