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General information

The ASDE 2014-01 Nationally Representative sample cohort is characterized by the following:

VendorASDE
Sample descriptionNationally representative
Date drawnNot applicable
Date of first mailingFebruary 21, 2014
Batch size10328
Experiment(s)None

Recruitment rates

All the recruitment rates below conform to AAPOR specifications. Please note that the Initial Response Rate reported in table 1 are based on AAPOR RR1. More information about the AAPOR response rates can be found at the Aapor web site.

To download the below information as an AAPOR excel sheet, please just click here.

Mailout and phone follow up of initial survey

The initial mail survey is a standard paper and pencil mail survey. Hence, the response rate of this is computed like any mail survey.

Total sample10,328
Eligible refusals and noncontacts (R)
Refused to participate372
Incomplete interviews3
Refusals and noncontacts with unknown eligibility (U)
Nothing returned4,880
Ineligible
Undeliverable by mail673
Unreachable by phone416
Responses (I)3,984
Initial Response Rate (I/(I + R + U))43.1%

Consent to participate

The initial mail survey asks respondents whether they would be interested in participating in the Understanding America Study. Everyone who answers affirmatively and who receives a login code is considered to have provided consent. The recruitment rate is then calculated as the number of people who receive a login code divided by the total number of eligible responses to the mail survey.

Total sample3,984
Eligible refusals and noncontacts (R)
Refused to participate751
Refusals and noncontacts with unknown eligibility (U)0
Responses (I)3,233
Recruitment Rate (I/(I + R + U))81.1%

Initial participation

The profile rate (PROR) is the fraction of the individuals who consented who completed My Household and thus became a panel member.

Total sample3,233
Eligible refusals and noncontacts (R)
Logged on to survey, did not complete any item22
Partially completed the My Household survey64
Did not log on1,330
Responses (I)1,817
Profile Rate (I/(I + R))56.2%

Overall recruitment rate

The overall recruitment rate (ORR) is the product of the response rates computed above (initial response rate, recruitment rate, and profile rate):

ORR = IRR * RECR * PROR = 0.431 * 0.811 * 0.562 = 19.6%

Active panel

As in any panel, we monitor attrition. Because individuals often simply stop responding without actively withdrawing from the panel and without us being able to contact them, we adopt the criterion that an individual is considered to be an active panel member if they participated in any survey in the last year (counting back from today, that is, July 23, 2019). A panel member who is not an active panel member but has not been removed yet from the panel is an inactive panel member.

Total sample1,817
Eligible refusals and noncontacts (R)
Voluntary drop-out21
Temporarily unavailable24
Individuals removed for miscellaneous reasons44
Refusals and noncontacts with unknown eligibility (U)
Inactive panel member543
Ineligible
Deceased12
Ineligible for another reason0
Responses (I)1,173
Retention Rate (I/(I + R + U)65%

Cumulative response rate

The cumulative response rate (CUMRR) up to and including retention is the product of the response rates computed above (initial response rate, recruitment rate, profile rate, and retention rate):

CUMRR = IRR * RECR * PROR * RETR = 0.431 * 0.811 * 0.562 * 0.65 = 12.8%