Part B-Supp Statement

Department of Commerce
United States Census Bureau
OMB Information Collection Request
Supporting Statement Part B
Current Population Survey (CPS) Fertility Supplement
OMB Control Number 0607 - 0610

B. COLLECTION OF INFORMATION EMPLOYING STATISTICAL METHODS
1.

Universe and Respondent Selection
We conduct the CPS Fertility Supplement in conjunction with the CPS, for which the
universe is 126 million households. From this universe, we select a sample of
approximately 70,000 households each month, of which approximately
54,000 households are eligible for interview. We ask the items in the June
supplement, as appropriate, for approximately 30,000 members of these households.
Based on previous response rates for similar questions, we expect the supplement
response rate to be approximately 91 percent. Historical response rates for the CPS
when in conjunction with the CPS Fertility Supplement are given here:

2.

Supplement
Year

Response
Rate

2006

91.92%

2008

91.71%

2010

91.53%

2012

90.36%

2014

89.44%

2016

87.32%

2018

84.77%

Procedures for Collecting Information
The Fertility Supplement is a supplemental survey associated with the CPS in June.
Attachment E gives an overview of the CPS sample design, weighting methodology
and response rates. The statistical properties of these supplemental items will fall
within those associated with the CPS.

3.

Methods to Maximize Response

We maintain response rates and data accuracy for the CPS at high levels through
interviewer instruction and training and close monitoring of data output. (Refer to
Item 5 of Attachment E for a discussion of the CPS nonresponse.)
A full allocation for item nonresponse is done within the CPS Fertility Supplement for
eligible people. (Item nonresponse for the main items is not expected to exceed 5
percent.)
4.

Testing of Procedures
We do not require testing of procedures and methods since we have conducted this
supplement since 1971. Attachment F discusses the reliability of estimates produced
by the June 2018 Fertility Supplement.

5.

Contacts for Statistical Aspects and Data Collection
The following individuals may be contacted on the statistical data collection and
analysis operations:
Statistical Design:

Data Collection/Survey Design:

James Farber
Demographic Statistical Methods Division
U.S. Census Bureau
(301) 763- 1844

Lisa A. Clement
Associate Directorate for
Demographic Programs Survey Operations
U.S. Census Bureau
(301) 763-3806

Statistical Analysis:
Rose Kreider
Social, Economic, and
Housing Statistics Division
U.S. Census Bureau
(301) 763-6059

Attachments
A. 2020 June Fertility Supplement Questionnaire
B1. Supplemental Table 6. Completed Fertility for Women 40 to 50 Years Old by
Selected Characteristics: June 2018
B2. Fertility of Women in the United States: 2012, Current Population Reports P20-575

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C.
D.
E.
F.

CPS Advance Letter (CPS-263)
Brochure – The U.S. Census Bureau Respects Your Privacy and Protects Your Personal
Information
Overview of 2010 CPS Sample Design and Methodology
Source of the Data and Accuracy of the Estimates, June 2018 Fertility Supplement

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