Does the serving-size of beer glasses matter for how much students drink on a night out?

Does the serving-size of beer glasses matter for how much students drink on a night out? A randomised controlled field experiment

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN95515814

Enrollment

103

Registered

2020-05-31

Start date

2017-04-20

Completion date

Unknown

Last updated

2020-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Excessive alcohol consumption Not Applicable

Interventions

At a regular quiz night in a large student dormitory bar in Copenhagen, Denmark, beer glasses of two different sizes are placed in a randomised sequence under the bar desk. This allowed for randomly a

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Guests at a dormitory bar

Exclusion criteria

Exclusion criteria: Does not meet inclusion criteria

Design outcomes

Primary

Measure	Time frame
Beer served measured in centiliters by having bartenders pour beer to a particular line on the beer glasses and recording this with go-pro cameras during the first 2.5 hours of the student event	—

Secondary

Measure	Time frame
There are no secondary outcome measures	—

Countries

Denmark

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026