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Exhibit 8.4
Overview of NSDUH Screening Verification Process
FI completes screening case
ending in code
10, 13, 18, 20, 22, 26, or 30
FI completes screening case
not ending in code
10, 13, 18, 22, 26, or 30
Verification
information obtained and
sent to RTI?
No
Yes
Case eligible for field verification
Phone verification indicates
that case was completed
with no problems;
case assigned a final
verification status
No
Case selected
for phone verification?
Yes
Case
successfully contacted by phone
verifier?
Yes
Does phone
verification indicate problem(s)
with case?
Yes
Case flagged with problem(s) in
phone verification and sent to Callback Team
Callback Team calls respondent to
investigate the flagged problem(s)
No
No
Phone
verification
unresolvable
or unable-tocontact
Case
selected for field
verification?
Yes
Field verifier completes
field verification
Case
found to have been
falsified?
Yes
Field verifier reworks case
Field verifier sends information to RTI
No
No
Stop
Stop
FI undergoes re-training,
receives disciplinary
action, and/or additional
verification is conducted
of the FI's work
Stop
Callback Team findings are keyed into the web
and sent to Data Quality Coordinators
Data Quality Coordinator reviews case findings and
assigns a final problem resolution to the case, which
appears on the data quality reports
No
No
Data Quality Coordinator summarizes data
quality reports & alerts the field management
staff of FI data quality problems/trends
Do verification
results indicate FI committed
errors?
Yes
Do verification
results indicate possible
falsification?
Yes
Field verification is conducted of a representative
sample of the FI's completed cases
Data Quality Coordinator reviews findings and reports
field verification results to Data Quality Manager and
National Field Director
Do field verification
results indicate FI committed
errors?
Yes
Do field verification
results confirm FI falsified
cases?
Yes
No
No
FI terminated and banned from working on any future
RTI projects; all cases completed by the FI in the
current quarter are field verified, data from falsified
cases are discarded, and each falsified case from the
current quarter is re-worked or assigned a final nonresponse
code
Stop
Stop
FI undergoes retraining,
receives disciplinary action,
and/or increased phone/
mail verification conducted
of the FI's work
Stop
Code 10 = Vacant
Code 13 = Not primary residence
Code 18 = Not a dwelling unit
Code 22 = All military
Code 26 = Residents in DU less than half of the quarter
Code 30 = No one selected for an interview
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