Fleet Commander includes reporting, device assignment
profiles, GPS tracking, GEO fencing, driver performance monitoring, diagnostic alerts and DOT compliance.
All other study investigators, the plumbing contractor who installed the devices, and the study subjects were blinded as to the household device assignment throughout the trial, including the analysis phase, resulting in a triple-blinded trial.
4), which can be expressed as BI = p x (r/2) + q, where p is the proportion who attempt to guess their device assignment, 0 [less than or equal to p [less than or equal to] 1; r is the ratio, among those who attempt guesses, of the proportions of observed and expected guesses; and q = 1 -p is the proportion of subjects who do not attempt to guess (i.
Overall, most subjects guessed "active" as their device assignment (50%); 33% guessed "don't know," and the rest guessed "sham.
Our findings suggest that at least two thirds of participants remained blinded to device assignment throughout the 16- week trial.