Data intelligence · automation · analyticsA Praxis Global Institute platform
Praxis Data Lab

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

11 release records across 11 datasets and 10 cycles.

Back to Explorer

Search scope

Results for “ALQ010”

Harmonization summary

0 label-stable codes

Label changes detected
1
Multiple dataset contexts
1
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.

ALQ010Compatible with harmonization

English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips?

Observed years
1999–2023
Release records
11
Datasets
11
Components
Questionnaire
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: 1999-2000 → 2005-2006 · 2005-2006 → 2007-2008 · 2011-2012 → 2013-2014 · 2013-2014 → 2015-2016 · 2015-2016 → 2017-2018 · 2017-2018 → 2017-2020 · 2017-2020 → 2021-2023

Praxis harmonization actions
  • Verify merge grain, companion variables, and component-specific analytic guidance for the new file context.
Supporting CDC/NCHS evidence
Variable names / labels over time
  • English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — 1999-2000 · 2005-2006 · 2007-2008 · 2009-2010 · 2011-2012 · 2013-2014
  • How old were you when you had your first drink of alcohol, other than a few sips? — 2015-2016 · 2017-2018 · 2017-2020 · 2021-2023
Cycle-by-cycle release history
  • 1999-2000: ALQYTH — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2005-2006: ALQYTH_D — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2007-2008: ALQYTH_E — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2009-2010: ALQY_F — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use (Ages 18-19) (Questionnaire)
  • 2009-2010: ALQY_F_R — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2011-2012: ALQY_G_R — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2013-2014: ALQY_H_R — English Text: The following questions ask about alcohol use. This includes beer, wine, wine coolers, and liquor such as rum, gin, vodka, or whiskey. This does not include drinking a few sips of wine for religious purposes. How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2015-2016: ALQY_I_R — How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2017-2018: ALQY_J_R — How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2017-2020: P_ALQY_R — How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only
  • 2021-2023: ALQY_L_R — How old were you when you had your first drink of alcohol, other than a few sips? — Alcohol Use - Youth (Questionnaire) — Note: RDC Only