Table 3.
Effect sizes comparing performance under alcohol and placebo
| Effect sizes | |||
|---|---|---|---|
| Tasks and studies | Measures | M | F |
| Simulated drive | |||
| Marczinski et al. (2008) | LPSD | 0.66 | 0.80 |
| STR | 0.44 | 0.55 | |
| Marczinski and Fillmore (in press) | LPSD | 0.54 | 0.66 |
| STR | 0.44 | 1.11 | |
| Pursuit rotor task | |||
| Harrison and Fillmore (2005) | %TOT | 1.34 | 2.59 |
| Weafer and Fillmore (2008) | %TOT | 0.75 | 1.02 |
| Dual task | |||
| Marczinski and Fillmore (2006) | Interference | 0.86 | 1.42 |
| Fillmore and Van Selst (2002) | Interference | 0.52 | 0.73 |
| RIP task | |||
| Fillmore et al. (2009) | Rate | 0.90 | 1.59 |
| Mean | 0.72 | 1.16 | |
| 0.44–1.34 | 0.55–2.59 | ||
| Range CI (95%) | (0.50–0.94) | (0.68–1.65) | |
| rMF | 0.933 | ||
LPSD = lane position standard deviation (feet).
SR = steering rate (degrees).
%TOT = percent time on target.
Interference = interference effect (milliseconds).
Rate = rate of information processing (digits per minute).