WFS Data
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World Fertility Survey

WFS Data

Trinidad & Tobago, 1977 (WFS)

The following description of this survey appeared in the 1991 edition of Dynamic Database: A Catalogue of Survey Data Files, Voorburg: International Statistical Institute.

Basic Information

  • Name of survey: Trinidad and Tobago Fertility Survey
  • Executive agency: Central Statistical Office
  • Date of fieldwork: 1977
  • Universe: All women 15-49 (except full time students aged 15-19)
  • Coverage: National, 100%
  • Size: 4355
  • Weights: Weighted
  • Contents: WFS Core Mark 1 + family planning module
  • Supplementary surveys: Household members (n = 21,588, weighted)

Additional Information

The sample frame was derived from the Continuous Sample Survey of Population (CSSP): it was designed to be self-weighting, but weights were introduced to adjust for variation in average household size. (Selection probabilities were based on population size but actual selection was in terms of households.) Interviewers usually administered the household schedule and the individual questionnaire in a single visit. All women aged 15-49 who were not full-time school students were eligible for interview.

In order to reconstruct a more adequate population base, a record for each student (n = 626) is available on the SR file. These records contain only age, residence details, and household variables.

As in most other WFS Caribbean surveys, the union (marriage) history was expanded to include non-cohabiting relationships. A complete history of sexual partnerships was obtained, with allowance for more than one type of union/relationship with the same partner. Separate parallel histories of unions and partners are preserved on the SR file.

The abortion module was used and a complete history of non-live births is available on the SR file. Child care arrangements for working mothers were elicited.

The income of the current partner and general household income is recorded. Household survey data on dwelling type size and ownership, on water supply and lighting and on ownership of household facilities have been transferred to the SR file.

Release Conditions

The Central Statistical Office of Trinidad and Tobago has given us permission to distribute their data if a signed Letter of Agreement is filed with them. Two copies of the agreement form are to be signed by the researcher and mailed to the office. One copy will be returned, signed by the Director of Statistics; until this is received by the researcher, no results of the research may be published. The data may not be redistributed without this form, which is available in pdf form here. Please fill it in and send it to:

 

Public Use Files

Available files include the individual standard recode data and dictionary, in the original WFS format. In addition, the individual standard recode data and dictionary dictionary are available in ISSA format. The table below lists the file names and descriptions.

File Description File Type
form.asc Letter of agreement for the ISI-format data Ascii text file
form.ps Letter of agreement for the ISI-format data PostScript file
tthm03.dat Household member data. Original WFS format Ascii text file
tthm03.dct Codebook for household member data. Original WFS format Ascii text file
ttread.me Conditions of release for the original WFS format data Ascii text file
ttsr02.dat Individual standard recode data. Original WFS format Ascii text file
ttsr02.dct Codebook for individual standard recode data. Original WFS format Ascii text file
ttss01.dat Supplemental survey data. Original WFS format Ascii text file
ttss01.dct Codebook for supplemental survey data. Original WFS format Ascii text file
formh.asc Letter of agreement for the DHS-format data Ascii text file
formh.ps Letter of agreement for the DHS-format data PostScript file
ttreadh.me Conditions of release for the ISSA format data Ascii text file
ttsr02h.dat Individual standard recode data. ISSA format Ascii text file
ttsr02h.dic Standard ISSA dictionary for ISSA format data (ISSA program is required to use this file) Binary file (requires ISSA program to use this file)
ttsr02h.map Codebook file for the standard recode data. ISSA format Ascii text file

Key References

1. Central Statistical Office, Trinidad and Tobago Fertility Survey, 1977, Country Report, Port of Spain, 1981.

2. Hunte, D., Evaluation of the Trinidad and Tobago Fertility Survey 1977, WFS Scientific Reports no 44, 1983


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