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Related Experiment Videos

Self-report validity issues.

J L Fitzgerald1, H A Mulford

  • 1Department of Psychiatry, University of Iowa, Iowa City 52242.

Journal of Studies on Alcohol
|May 1, 1987
PubMed
Summary
This summary is machine-generated.

Investigating alcohol consumption, this study found that including atypical heavy drinking in surveys narrowed the gap between self-reports and sales data more than including adolescent drinking. However, a significant gap persists, indicating complex self-report validity issues.

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Area of Science:

  • Alcohol Consumption Research
  • Survey Methodology
  • Public Health Statistics

Background:

  • A consistent discrepancy exists between population alcohol consumption estimates from surveys and official sales records.
  • Understanding this gap is crucial for accurate public health assessments and policy development.
  • Previous research has not fully accounted for atypical drinking patterns or adolescent consumption.

Purpose of the Study:

  • To investigate two potential sources of the sales-consumption data gap: atypical heavy drinking and adolescent consumption.
  • To examine the relationship between self-reported alcohol purchases and consumption.
  • To assess the validity of self-reported alcohol data compared to sales records.

Main Methods:

  • Conducted personal interviews with a random sample of 997 adults and 182 adolescents in Iowa (1985).

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  • Incorporated measures of both ordinary and atypical heavy drinking into survey estimates.
  • Analyzed the correlation between self-reported purchases and consumption within a 30-day period.

    • Main Results:

    • Adding atypical heavy drinking to survey estimates narrowed the sales-self-report gap more effectively than adding adolescent drinking.
    • A substantial gap between sales data and self-reported consumption remained even after adjustments.
    • Self-reported purchases more closely aligned with sales data than self-reported consumption, though correlations were not high.

    Conclusions:

    • The validity of self-reported alcohol consumption is influenced by multiple unresolved factors.
    • Self-reported data may be adequate for certain research purposes but not for others.
    • Official alcohol sales records may not serve as definitive measures of actual population consumption.