“…Invariance of the age-crime curve has been studied in relation to numerous factors, including gender (Steffensmeier, Allan, Harer, & Streifel, 1989;Steffensmeier & Streifel, 1991;Tittle, Ward, & Grasmick, 2003;Uggen & Kruttschnitt, 1998), race (Shulman, Steinberg, & Piquero, 2013;Ulmer & Steffensmeier, 2014), and most often by crime type (Farrington, 1986;Steffensmeier et al, 1989;Tittle & Grasmick, 1997). For the most part, these studies have found evidence of variance across the factors studied, but similarity is also often noted.…”