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Nebraska Annual Social Indicators Survey, 2001




The Nebraska Annual Social Indicators Survey (NASIS) aims to survey quality of life in the state of Nebraska, covering topics such as the environment, housing, health, recreation, occupation, education, family life, among others. A set of core questions are repeated each year, and additional questions are purchased by those interested in gathering additional data. The 2001 NASIS asks questions about outdoor and recreational activities, the Nebraska Game and Parks Commission, household composition, job situation, the care in nursing homes/assisted living facilities, voting behavior and the Nebraska Department of Roads.

The ARDA has added six additional variables to the original data set to enhance the users' experience on our site.

Data File

Cases: 1862
Variables: 473
Weight Variable: PWEIGHT, HWEIGHT

PWEIGHT contains an adjustment for the region, sex and age bias found in the sample and a correction factor to compensate for differential probability of selection of the respondent within households with varying numbers of adults present. The second weight, HWEIGHT, is used when the information needed is at the household level.
Source: Nebraska Annual Social Indicators Survey 2001 Methodology Report.

Data Collection

Dec. 19, 2001-March 27, 2002

Original Survey (Instrument)

NASIS 2001 Methodology Report

Funded By

Department of Sociology at the University of Nebraska-Lincoln, Bureau of Sociological Research, and other state agencies and educational and research organizations

Collection Procedures

The data were collected from Dec. 19, 2001 until March 27, 2002. There were 1,814 interviews completed with respondents, and 49 additional interviews were partially completed and included in the data set, for a total of 1,863 interviews. Completed interviews were carefully processed and recorded by the BOSR staff to ensure that each interview was accounted for and its progress along the various steps of editing, coding, merging and uploading could be monitored. Interviews were conducted using WinCati software, which saves responses on a networked file server. Each day, automatic backups were made of all directories containing information relevant to the survey, and the responses (both numeric and open-ended) were scanned for apparent errors or problems by the BOSR staff.

Sampling Procedures

Random digit dialing has been used to select new respondents since the inception of NASIS in 1977. The sample of respondents is drawn from a population consisting of non-institutionalized persons in households with telephones who resided in the state of Nebraska during the survey period (December 2001 to March 2002). Persons under 19 years of age, persons in custodial institutions, in group living quarters, on military reservations and transient visitors to the state are excluded from the sampling universe. The sample was targeted at 1,800 respondents. Random digit dialing requires obtaining a list of all three-digit central office codes (the first three digits of the seven digit telephone number) in the areas to be covered. Within each central office code, four-digit numbers are randomly generated from the universe of all possible four-digit numbers in the suffix. Each number, including unassigned, unlisted, previously assigned and newly assigned numbers has an equal probability of inclusion in the sample. The proportion of telephone numbers that are currently assigned to households is a direct function of the population of the area. Thus, selecting an equal number of four-digit random numbers from each three-digit area will result in a self-weighted simple random sample of households with telephones. The sample for the 2001 -2002 NASIS was drawn using the Genesys sample generation program which generates numbers based on known area codes, prefixes within each area code and working number ranges within each prefix. In addition, a sample of phone numbers also is generated using out-of-working-number ranges to insure representativeness among ranges, which the phone company may have been assigning as unpublished phone numbers.

Principal Investigators

Bureau of Sociological Research at the University of Nebraska-Lincoln

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