Using data from the Monitoring the Future survey from 1996 to 1999, the authors compared percentage of White ecstasy users with the proportion of White students generally in each year and across years. The analysis focused on high school seniors and only considered a respondent to be an ecstasy user if he or she reported use in the last 12 months rather than if she or he reported lifetime use. A greater number of respondents were female, White and aged 18 or older. In all cases, the proportion of White ecstasy users was higher than would be expected from the percentage of White students in each sample. The proportion of respondents identifying themselves as White is as follows, with ecstasy users listed first and general sample second; 1996, 91% versus 73%, 1997, 89% versus 69%, in 1998, 90% versus 70%, in 1999, 89% versus 65%. These findings are in accordance with a study conducted by the same group of juvenile offenders in Maryland (Yacoubian et al. 2002). However, other researchers using the same data (Monitoring the Future survey data) found that slightly more respondents reporting ecstasy use in the last year or month in 1999 or 2000 were Latino (Landry et a. 2002), and not White, a finding appearing to contradict the findings reported above. Differences between the two publications might be due in part to differences in the year samples were collected and the grade of respondents, as Landry did not restrict examinations to seniors).