Praxis Data Lab · Variable History

Variable history and harmonization report.

Review variable definitions, cycle chronology, survey design, laboratory methods, method-change boundaries, detection limits, and evidence-backed harmonization actions.

1matching variable codes

9 release records across 9 datasets and 9 cycles.

Search scope

Results for “SIAINTRP”

Harmonization summary

1 label-stable codes

Label changes detected
0
Multiple dataset contexts
0
Unique codes
1
Enriched codes in this report
0

Scientific safeguard

Qualified assessment is authoritative; chronology remains supporting evidence.

Praxis separates source-stated method or instrument changes from automated differences in CDC/NCHS method text. The qualified harmonization assessment below is the researcher-facing conclusion; method chronology explains the underlying evidence and does not override that adjudication.

Variable-by-variable chronology

Qualified harmonization assessment and indexed evidence

Each variable first shows the current qualified assessment used by Study Builder, followed by cycle-specific source evidence and method chronology.

SIAINTRPCompatible with harmonization

Was an interpreter used to conduct the Sample Person (SP) interview?

Observed years
20032020
Release records
9
Datasets
9
Components
Demographics
Qualified Praxis harmonization assessment

Compatible with harmonization · moderate confidence

No blocking method discontinuity is identified inside the selected cycle span, but one or more longitudinal changes require explicit harmonization conditions before pooling.

Evidence provenance: Praxis automated inference from indexed CDC/NCHS evidence

Relevant boundaries: 2003-2004 → 2005-2006 · 2005-2006 → 2007-2008 · 2007-2008 → 2009-2010 · 2009-2010 → 2011-2012 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
  • Select the weight appropriate to each cycle and subsample; when pooling cycles, construct the combined weight according to NHANES guidance rather than reusing a single-cycle weight unchanged.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • Was an interpreter used to conduct the Sample Person (SP) interview?2003-2004 · 2005-2006 · 2007-2008 · 2009-2010 · 2011-2012 · 2013-2014 · 2015-2016 · 2017-2018 · 2017-2020
Cycle-by-cycle release history
  • 2003-2004: DEMO_C — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables & Sample Weights (Demographics)
  • 2005-2006: DEMO_D — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables & Sample Weights (Demographics)
  • 2007-2008: DEMO_E — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables & Sample Weights (Demographics)
  • 2009-2010: DEMO_F — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables & Sample Weights (Demographics)
  • 2011-2012: DEMO_G — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables & Sample Weights (Demographics)
  • 2013-2014: DEMO_H — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables and Sample Weights (Demographics)
  • 2015-2016: DEMO_I — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables and Sample Weights (Demographics)
  • 2017-2018: DEMO_J — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables and Sample Weights (Demographics)
  • 2017-2020: P_DEMO — Was an interpreter used to conduct the Sample Person (SP) interview? — Demographic Variables and Sample Weights (Demographics)