Analyze & Subset--Study No. 4247
Title: National Survey of Parents, 1999-2001
Online Analysis Using SDA
The online analysis system allows you to run both simple and complex analyses, recode and compute new variables, and subset variables or cases for downloading. The software powering the system, named Survey Documentation and Analysis (SDA), was developed by the Computer-assisted Survey Methods Program (CSM) at the University of California, Berkeley.
Click on the link(s) below to begin using SDA.
Please note that weights may affect analysis results.
The National Survey of Parents, 1999-2001 data include two analysis weights. The first weight (WEIGHT) is included in the main data file and is needed to account for households with more than one nonbusiness telephone number. The weight was calculated as the reciprocal of the respondent's to a question about the number of nonbusiness telephone lines in a household, and it served as the correction for multiple nonbusiness telephones in a household. This weight should be used for all analysis involving the telephone data and for the construction of any post stratification weights.
The second weight (FINALWT) is a combined variable that adjusts for survey design, post-stratification, and the day of the week that the interview occurred. This weight was normed so that it sums to the number of completed interviews. Post-stratification adjustments were made to correct discrepancies between the sample distribution on sex, age, education, race/ethnicity, and census region, as well as 2000 Current Population Survey distributions. The day of the week adjustment corrects for the unequal number of interviews collected on each of the seven days of week and was calculated using a ratio of 14.3 percent (i.e., one-seventh) to the actual percentage of the interviews completed on that day of week.
If you're having trouble with SDA utilities, you may wish to consult the online help files for SDA users provided by the Computer-assisted Survey Methods Program (CSM) at the University of California, Berkeley.