Exact Age, Hard-coded
There are two basic types of age-selectable samples. The first involves hard-coded data on specific ages within individual households. This approach offers the clear advantage of maximizing your dialing hit rate and minimizing wasted screening calls. Sources of hard-coded age data are diverse, drawing upon voter registration lists, drivers license records, survey data, county records, school registration data and others. Samples are systematically nth selected within your designated geographic area.
Age Ranges, Predicted
Because the availability of household-specific age data is uneven and many individuals are not recorded, representation is less than 100%. Therefore, we offer age range selections based on predictive techniques. With these, the researcher has a somewhat lower probability of reaching households containing a specified age, but will have greater confidence that the sample is more broadly representative. The predicted age algorithm involves the use of a multiple regression model. The entire consumer database of listed telephone households is analyzed and each household is assigned a score which indicates its probability of containing a specified age group. The multiple independent variables in the model include length of residence, geography, car value and a variety of census demographic variables. The scoring and age assignments are done at the lowest level of census geography, using 1990 census data at the tract and block group level. Samples are systematically nth selected within the your specified geographic area.
Income, Net Worth, Income Producing Assets
Using a sophisticated income prediction technique, ASI offers high quality income samples designed specifically to meet the needs of survey researchers. Income ranges may be selected in combination with other targeted selections, including age and our extensive list of low-incidence consumer categories.
The income prediction technique is much the same as that which is used to predict age. A multiple regression model is evaluated against the consumer file of all listed households in the country. The model is driven by a variety of variables including length of residence, geography, car value and other census demographic variables. The end result is an income value, within $1,000 increments, assigned to each individual household. For reaching affluent households with low salary income - the retired, for example - ASI also offers Net Worth or Income Producing Assets selections.
For filling quotas of males and/or females, you can either 'take them as they fall' or sample systematically by gender. Often combined with an exact age selection, our gender samples allow you to reach the exact proportion of males or females that is called for in your sample design. Gender is determined by matching first names against a gender coded file of names, together with other sources of gender data.
Other Demographically Targeted Groups
Looking for some other demographic group? Call Affordable Samples, Inc. We can advise you on its availability and work with you to identify the best sampling alternative to meet your needs.