Sentence examples for a supplemental sample of from inspiring English sources

His estimates for the period from 1983 to 2007 are based on the Federal Reserve's Survey of Consumer Finances, a questionnaire-based exercise that includes a supplemental sample of high-income households and has been carried out every three years since 1989.

First, the Pew Internet study was conducted by telephone using a random digit dial (RDD) sample of wired phone and without a supplemental sample of cell-phones, something the Pew Center does periodically for their political surveys.

Two sampling frames were used in creating AHEAD--a 1992 multi-stage household screening process, and a supplemental sample of persons ≥80 years old from the Medicare Master Enrollment File.

AHEAD respondents were identified either from household screening conducted during the 1992 multi-stage cluster sampling process for a companion study of pre-retirement aged adults, or a supplemental sample of persons 80 years old or older identified from the Centers for Medicare and Medicaid Services' (CMS) Medicare Master Enrollment File.

I do not consider the supplemental sample of poor whites because they are excluded from the survey after 1991.

For this study, I use data from 1979 to 2000 and limit my sample to the cross-sectional sample of whites and blacks and the supplemental samples of blacks.7 I drop observations that have missing information necessary to define the year and the state of entry; the detailed sample restrictions are described in the appendix.

For reasons of economy, an independent national supplemental sample was not drawn in Round 4, as was done in each of the three previous rounds.

The sample consisted of a random-digit dial survey of households with telephones (main frame), and a supplemental area probability sample of households without telephones, and an oversample of low-income households with children.

Descriptive statistics of variables used for the main sample and the supplemental sample are summarized in Table 1.

From a subset initially constituted of 8 sampling stations, supplemental sampling stations were selected within a complementary data set and added one by one to the iterative geostatistical simulations.

Comparative effectiveness studies using Medicare claims data are vulnerable to treatment selection biases and supplemental data from a sample of patients has been recommended for examining the magnitude of this bias.