Erratum to: Prev Sci (2017)

DOI 10.1007/s11121-017-0750-z

The original version of this article unfortunately contained mistakes. Authors' affiliations are incorrect. Also, figure 1 image is incorrect. The text in the right side of the “Allocation” box should be changed to "Allocated to comparison group (n = 56)" with no other texts in the box.

The original article was corrected.