“…There have been calls for longitudinal research in the area of STS (Bride, 2011;Moulden & Firestone, 2007;Salston & Figley, 2003), and we agree it is important to examine this problem over time. In light of this need, we included subject-generated identification codes (see Kearney, Hopkins, Mauss, & Weisheit, 1984;Yurek, Vasey, & Sullivan Havens, 2008) in our survey that allow respondents to remain unidentifiable yet will allow us to conduct follow-up studies at a future date. The sample was very specific to a certain profession that investigates online child sexual exploitation.…”