After the ten-year period, no measurable effects were noted. The researchers compared levels of alcohol, cigarette, marijuana and the use of illegal substances before the D.A.R.E. program (when the students were in sixth grade) with the post D.A.R.E. levels (when they were 20 years old). Although there were some measured effects shortly after the program on the attitudes of the students towards drug use, these effects did not seem to carry on long term.[38]