Published laboratory-based experiments evaluating the impact of Tall Man lettering on look-alike/sound-alike drug errors
| Author(s) and year of study | Number and type of participants | Type of laboratory-based experimental task | Were participants informed of the purpose of Tall Man lettering before the task? | Was there an effect of Tall Man lettering on drug name confusion errors? | Was there an effect of Tall Man lettering on other measures? | Was there an effect of degree of drug name similarity on errors or other measures? |
|---|---|---|---|---|---|---|
| Filik et al (2004)15 | 20 Lay people | Visual search | Unknown | Yes | Yes | – |
| Filik et al (2006)16 Experiment 1 | 20 Lay people | Same–different | No | – | No | – |
| Filik et al (2006)16 Experiment 2 | 20 Lay people | Same–different | Yes | – | Yes | – |
| Filik et al (2006)16 Experiment 3 | 28 Lay people | Recognition memory | Unknown | No | Yes | – |
| Schell (2009)28 Experiment 1 | 102 Lay people | Same–different | Unknown | No* | – | Yes |
| Schell, 200928 Experiment 2 | 11 Healthcare professionals | Same–different | Unknown | No | – | – |
| Filik et al (2010)29 Experiment 1 | 56 Lay people | Same–different | Unknown | Yes | Yes | – |
| Filik et al (2010)29 Experiment 2 | 127 Healthcare professionals | Visual search | Unknown | Yes | No* | – |
| Darker et al (2011)18 | 144 Healthcare professionals | Reicher–Wheeler | Yes | Yes | – | – |
| Irwin et al (2013)19 Experiment 1 | 60 Lay people | Visual search | No | No | No | – |
| Irwin et al (2013)19 Experiment 2 | 28 Healthcare professionals | Visual search | No | No | No | – |
| Or and Chan, (2014)23 | 60 Lay people and healthcare professionals | Same–different | Unknown | Yes | No | Yes |
| Or and Wang (2014)24 Experiment 1 | 40 Lay people | Same–different | Unknown | Yes | – | Yes |
| Or and Wang (2014)24 Experiment 2 | 40 Healthcare students | Same–different | Unknown | Yes | – | Yes |
| DeHenau et al (2016)30 | 40 Healthcare professionals, 40 Lay people | Flicker change detection | Unknown | Yes | Yes | – |
*There was a significant effect but in the opposite direction (worse performance for Tall Man relative to standard text).