This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.

Abstract Details

Activity Number: 420
Type: Contributed
Date/Time: Tuesday, August 3, 2010 : 2:00 PM to 3:50 PM
Sponsor: Section on Survey Research Methods
Abstract - #307665
Title: Eliminating Invisible Boundaries in the National Children's Study While Preserving Selection Probabilities
Author(s): Edward Marks English and Colm O'Muircheartaigh*+
Companies: NORC
Address: 55 E. Monroe St. , Chicago, IL, 60603,
Keywords: National Children's Study ; Census blocks

Typically in designing samples of adults or households, an intermediate stage is the selection of areas such as blocks or groups of blocks. Census blocks are separated by a variety of features, including both visible (e.g., roads) and invisible (e.g., municipal) boundaries. Invisible boundaries cause difficulties for field staff, potentially resulting in listing and interviewing error. When the issue is addressed after selection, the challenge is to ensure that the selection probability of each population element is determinable, including the probabilities for every sub-area (block or block-part) in the population. Thus the boundary-adjusting method must lead to a consistent result regardless of which sub areas were selected. We present an approach that greatly ameliorates this problem and show its application to the issue of segment boundaries in the National Children's Study (NCS).

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