“…The average effect from this data source is smaller than other studies, but this difference is not statistically significant. The DDB Life Style Study accounts for 24 effects in seven studies (Shah, Cho, et al, 2007;Shah, McLeod, et al, 2007;Shah & Scheufele, 2006;Shah et al, 2005;Shah et al, 2002;Shah, Kwak, & Holbert, 2001;Shah, McLeod, & Yoon, 2001). Comparing this data source to other data sources is difficult, because the data were collected in multiple years, which could explain why the findings produced differ from other data sources.…”