Table 1.

Previously published studies of the amount of alcohol poured into drink containers.

Citation	Sample	Methodology	Average number of standard drinks poured*	Standard deviation of number of drinks poured*
Gual et al., 1999	Field studies in Spain	Participants selected their 1 preferred glass type (of 16 commonly used glasses provided by researchers) and were asked to fill with the amount of alcohol they would typically consume at bars or at home.	1.375	0.541
Kerr et al., 2005	US national survey	Participants poured their “usual drink” into a beaker.	1.357	0.713
Gill & Donaghy., 2004	Regular drinkers in Scotland	Participants poured their “usual drink” into a glass.	1.832	0.545
Gill & O’May, 2007	Regular drinkers in the UK	Participants poured their “usual” amount of wine or spirits into a glass.	2.050	0.678
Kerr et al., 2008	Field studies in the US	Researchers went to 80 alcohol-serving establishments, ordered various drinks, and measured the bartenders’ pour.	1.615	0.040
Wilkinson et al., 2011	Current drinkers in Australia	Participants poured their “usual” serving of alcohol into their “usual drinking vessel” and then researchers measured the amount of alcohol poured.	1.221	0.466

Note:

^*standard drink definitions were used based on the country in which the study was conducted