The authors conclude Inspection Time has strong potential as a single marker test sensitive to the time course of alcohol intoxication¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2012 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2015: tool and model accuracy changes quickly

Subclaims¶

q2 i? IT showed reliable dose-related decline with rising BAC and convenient non-invasive task properties, leading the authors to recommend it as a marker test. → Dry MJ 2012

Evidence¶

Dry MJ 2012¶

Dry MJ, Burns NR, Nettelbeck T, Farquharson AL, White JM (2012) Dose-Related Effects of Alcohol on Cognitive Functioning. PLoS ONE 7(11): e50977. https://doi.org/10.1371/journal.pone.0050977

q2 · i? · causal · r2

Authors' interpretation of their dose-response results: IT was dose-sensitive, can be estimated in as little as 5 min, and has existing lifespan norms (2518 participants aged 6 to 92 years) supporting wide-spread application.

"We suggest, therefore, that IT has strong potential as a single test, sensitive to the time course of alcohol intoxication."

Discussion¶

Related Claims¶

• TSP (complex spatial problem solving) and SART-OM (vigilance for frequent events) showed no significant alcohol effects, an outcome the authors report as unexpected — related
• Only SOPT, IT and SART-CO showed significant impairment at the lowest blood alcohol concentration of 0.048%, with large effect sizes (d = 0.76, 0.65 and 1.06) — related
• SART-CO errors rose sharply at BAC 0.048% but changed little thereafter across the 0.048% to 0.10% range, with a suspected ceiling effect — related
• Acute alcohol produces a significant main effect on performance on most cognitive tasks, with partial eta-squared effect sizes from 0.07 to 0.37, but not on TSP or SART-OM — related