Maelstrom Research Staging | WLS_1993

WLS_1993_Sibling

Networks -

Variables -

Population

WLS Sibling sample

In 1977, the population consisted of a randomly selected sibling of the WLS graduate participants. In 1993 a full sibling sample was implemented.

Selection Criteria

Newborns

Twins

Countries

United States of America

Recruitment

Sources of recruitment

Specific population

Specific Population

Other specific population :
Siblings of the graduate sample.

Number of Participants

Number of Participants

6,002

Number of Participants with Biological Samples

3,440

Supplementary Information about selection criteria

The sample frame for siblings for 1975 was a 1/3 random sample of one random living sibling for each graduate with a sibling. The 1993 eligible sibling sample excluded siblings who were in the 1975 sample frame, but were not interviewed; siblings of graduates not interviewed in 1975; and interviews not completed owing to lacking funds. The 2004 eligible siblings sample excluded siblings who were in the 1975 and/or 1993 sample frame, but were not interviewed and siblings of graduates not interviewed in 1975 and 1993.

1975: Mail survey: 2133 participants

1993: Phone and mail survey: 5365 participants

2004: Phone and mail survey: 4703 participants

2011: In-person and mail survey: 3397 participants

More info

Data Collection Event

1993 survey

Telephone and/or mail surveys. Includes all 1975 measures and information on detailed assets, detailed income, pension, future plans and retirement, health insurance, caregiving, selected child (education, employment, marital status, relationship with parents), chronic conditions, physical symptoms, physical limitations/functional limitations, menopause and hormone therapy and smoking.

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Collected Dataset / WLS_1993_Sibling

WLS_1993_Sibling

Population

WLS Sibling sample

Data Collection Event

1993 survey

Files

Variables Classifications