TABLE 3.

Between onset-groups comparison with sexual specialization.

Type of Specialization Threshold	Sex	Violence	Property	Addiction	χ2(2)	F value
For sexual crime
no. ST > 50% (%)	114 (23.4%)	3 (3.8%)	10 (8.3%)	0	547.98***
ST scores	0.92 (0.18)	0.32 (0.20)	0.36 (0.19)	0.28 (0.20)		464.61***
For violent crime
no. ST > 50% (%)	1 (0.2%)	15 (19.2%)	2 (1.7%)	0	159.20***
ST scores	0.02 (0.09)	0.5 (0.21)	0.05 (0.12)	0.02 (0.07)		303.56***
For property crime
no. ST > 50% (%)	2 (0.4%)	1 (1.3%)	27 (22.3%)	1 (2.7%)	171.97***
STscores	0.03 (0.10)	0.07 (0.15)	0.53 (0.21)	0.05 (0.14)		352.68***
For addiction
no. ST > 50% (%)	0	3 (3.8%)	0	12 (32.4%)	294.71***
ST scores	0.01 (0.05)	0.05 (0.15)	0.02 (0.07)	0.59 (0.24)		397.74***

The “specialization threshold” (ST) scores was proposed by Harris (2012), and is calculated by dividing the total number of charges for that type of offense (e.g., sexual) by the total number of charges for all offenses.

The 50% ST is commonly used to indicate the extent to an offender has a specialized criminal career.

***p < 0.001.