Trends in International Mathematics and Science Study 1999

World, 1999

Reference ID

WLD_1999_TIMSS_v01_M

Producer(s)

TIMSS International Study Center

Metadata

DDI/XML JSON

Created on

Apr 25, 2019

Last modified

Apr 25, 2019

Page views

1151

CSV JSON

How many days did you have back pain (q6008)

Data file: WHS-Ukraine_F5

Overview

Valid: 1354

Invalid: 1498

Minimum: 1

Maximum: 30

Mean: 13.59

Standard deviation: 11.516

Type: Continuous

Decimal: 2

Range: -

Format:

Questions and instructions

Literal question

How many days did you have this back pain during the last 30 days?

Interviewer instructions

This question is only asked to respondents who reported experiencing back pain during the last 30 days. The intention is to distinguish a back pain caused by a mild temporary problem, such as muscle strain, from a more serious problem related to the disease of spine and the spine joints. Record the number of days (to a maximum of 30 days) as mentioned. The answer does not need to ascertain the exact amount of time (for example, if the respondent says they had back pain for about two weeks, record "14" days).