Attachments N, J, Q

Attachment N
Sample Design

2013 NSDUH DRESS REHEARSAL SAMPLE DESIGN
Selection of State Sampling Regions and Segments
The National Survey on Drug Use and Health (NSDUH) sample design is a multi-stage area
probability sample. At the second stage of selection, area segments are formed so that they
contain sufficient numbers of dwelling units to support one field test and two annual survey
samples. This allows for any special supplemental sample or field test that SAMHSA may wish
to conduct within the segments used for the main study.
An estimated 200 segments will be needed to yield approximately 2,000 completed interviews
for the Dress Rehearsal (DR). First, a sample of state sampling regions will be selected. To
ensure that a sufficient number of DR interviews are completed in Spanish, a special certainty
stratum consisting of state sampling regions with a historically high proportion of Spanish
interviews will be created. The high Hispanic interview stratum is defined as having 10 percent
or more of interviews from the 2011 NSDUH conducted in Spanish. One hundred and one of the
NSDUH state sampling regions fall into this stratum and will be selected with certainty. The
other 99 state sampling regions will be selected with probability proportional to size (PPS) from
the remaining 775 1 state sampling regions. This design has the benefit of placing the sample in
heavily populated areas where a sufficient mix of field interviewers (FIs) with various
experience levels would be available to meet the DR staffing needs. In addition, the majority of
the Spanish interviews are expected to be completed in states where bilingual FIs are currently
employed.
Within each selected state sampling region, a sample of dwelling units will be drawn from the
segment to be retired from use in Quarter 1 of the 2013 NSDUH. If an insufficient number of
eligible dwelling units remains in any segment, this segment will be replaced with the Quarter 4,
2012 retired segment in the same state sampling region. Similarly, if a significant amount of
controlled access problems were encountered in any Quarter 1, 2013 retired segment, this
segment will be replaced with the Quarter 4, 2012 retired segment in the same state sampling
region.
Selection of Dwelling Units
Dwelling units that were not selected for the 2011, 2012 and 2013 main studies will be eligible for
selection in the field test. After accounting for eligibility, nonresponse, and the person-level sample
selection procedures, it is estimated that approximately 5,146 dwelling units will need to be selected in
order to yield 2,000 completed interviews for the field test as shown in Table 1. The 2012 NSDUH
Questionnaire Field Test experience, adjusted for the oversampling of high Hispanic interview areas, was
used to estimate the number of dwelling units needed.
1

The annual NSDUH sample is selected from 900 state sampling regions. However, Alaska and Hawaii
will be excluded from the DR. Thus, the DR sampling frame consists of 876 state sampling regions in the
contiguous U.S. One hundred and one of those regions are in the high Hispanic interview stratum and 775 are in the
remainder stratum.

P-1

Similar to the main study, a small reserve sample of dwelling units from each segment will be
selected and the total sample will be partitioned into equal probability subsamples. While the
majority of the sample will be released at the beginning of the QFT data collection period,
having the additional sample and sample partitions will allow for greater flexibility in controlling
the sample size. Using this procedure will ensure data collection goals are attained within the
field period.

Table 1. Summary of the Dress Rehearsal Sample Design
Statistic
State Sampling Regions
Segments
Selected Dwelling Units
Expected Eligible Dwelling Units
Expected Completed Screening Interviews
Expected Selected Persons
Expected Completed Interviews

Total
200
200
5,146
4,426
3,673
2,703
2,000

Expected
Rate

0.86
0.83
0.74

Selection of Persons
The respondent sample will be allocated to the three major age groups in the following
proportions: 25 percent aged 12 to 17, 25 percent aged 18 to 25, and 50 percent aged 26 or older.
This sample allocation will match the planned allocation for the 2015 NSDUH partial redesign.
One implication of the respondent sample allocation by age groups is a potential impact on DR
response rates. Retaining more of the 26 or older adults identified in households to complete
interviews could have a negative effect on interview response rates. Specifically, respondents age
50 and older have shown lower propensities to participate than other age groups in the NSDUH
sample. On the other hand, while a smaller proportion of 12 to 17 year olds will be selected, this
age group will continue to drive the number of dwelling units needed (that is, the age group will
continue to be sampled at the highest rate). Thus, fewer dwelling units will be needed to yield the
desired sample than would be needed under the current sample design.
After dwelling units are selected within each DR segment, an interviewer will visit each selected
dwelling unit to obtain a roster of all persons residing in the dwelling unit. This roster
information will be used to select 0, 1, or 2 persons for the survey. Sampling rates will be pre-set
by segment and age group. Roster information will be entered directly into the electronic
screening instrument which will automatically implement this stage of selection based on the
segment and age group sampling parameters.
As illustrated in Table 1, roughly 2,703 people will be selected from within 3,673 screened and
eligible dwelling units. Assuming a 74% interview completion rate and an 83% screening
completion rate, these sample sizes are sufficient to obtain the desired 2,000 person respondents.
Two hundred and seven of the 2,000 interviews are expected to be completed in Spanish.

P-2

Attachment J
Incentive Receipt

Interview Incentive Receipt

U.S. Department of Health and Human Services
and
RTI International
thank you for participating in the 2013 National Survey on Drug Use and Health.
In appreciation of your participation in this important study, you are eligible to receive $30 in cash.
Since maintaining the confidentiality of your information is important to us, your name will not be entered on this
form. However, the interviewer must sign and date this form to certify you received (or declined) the cash incentive.

___________________________________
Interviewer

□

_________
Date

__ __ __ __ __ __ __ __ __ __ - __
Case ID

□

Accepted Cash Incentive

Declined Cash Incentive

If you ever feel that you need to talk to someone about mental health issues, you can call the National Lifeline
Network. Counselors are available to talk at any time of the day or night and they can give you information about
services in your area.
1-800-273-TALK or 1-800-273-8255
1-888-628-9454 (Spanish)
http://suicidepreventionlifeline.org/
If you ever feel that you need to talk to someone about drug use issues, you can call the Substance Abuse and Mental
Health Services Administration’s Treatment Referral Helpline. This is a 24-hour service that will help you locate
treatment options near you.
1-800-662-HELP or 1-800-662-4357
1-800-487-4889 (TDD)
http://findtreatment.samhsa.gov
Disposition: Top copy to Respondent, yellow to Field Supervisor, pink to Field Interviewer.

v. DR 9.13

Interview Incentive Receipt

U.S. Department of Health and Human Services
and
RTI International
thank you for participating in the 2013 National Survey on Drug Use and Health.
In appreciation of your participation in this important study, you are eligible to receive $30 in cash.
Since maintaining the confidentiality of your information is important to us, your name will not be entered on this
form. However, the interviewer must sign and date this form to certify you received (or declined) the cash incentive.

___________________________________
Interviewer

□

Accepted Cash Incentive

_________
Date

__ __ __ __ __ __ __ __ __ __ - __
Case ID

□

Declined Cash Incentive

If you ever feel that you need to talk to someone about mental health issues, you can call the National Lifeline
Network. Counselors are available to talk at any time of the day or night and they can give you information about
services in your area.
1-800-273-TALK or 1-800-273-8255
1-888-628-9454 (Spanish)
http://suicidepreventionlifeline.org/
If you ever feel that you need to talk to someone about drug use issues, you can call the Substance Abuse and Mental
Health Services Administration’s Treatment Referral Helpline. This is a 24-hour service that will help you locate
treatment options near you.
1-800-662-HELP or 1-800-662-4357
1-800-4874889 (TDD)
http://findtreatment.samhsa.gov
Disposition: Top copy to Respondent, yellow to Field Supervisor, pink to Field Interviewer.

v. DR 9.13

Attachment Q
Certificate of Participation

U.S. Department of Health
and Human Services

Certificate of Participation
The U.S. Department of Health and Human Services and RTI International would like to thank

[Participant’s Signature]

for participating in the National Survey on Drug Use and Health
on
_____________________________
[Date of Interview]

Field Interviewer

Ilona S. Johnson,

FI ID #

National Field Director
RTI International
3040 Cornwallis Road
Research Triangle Park, NC 27709

This document certifies that the above named individual participated in NSDUH, a voluntary survey for the U.S. Department of Health and
Human Services. Across the country, some participants approach their school teachers or other group leaders to ask about possible special
community service credit as they completed this important national survey. The time commitment for participation in this survey is between 1
and 2 hours. A copy of the NSDUH brochure, which explains the study in more detail, should accompany this certificate. If you need further
information, contact the National Field Director, Ilona Johnson, at (800) 848-4079.
v. DR 9.13