. 2015 Jul 15;78(2):144–150. doi: 10.1016/j.biopsych.2014.09.022

Table 1.

Source Questionnaire, Item Numbers, and Question Wording for Items Included in CU Trait Factor Analysis

APSD	CBCL	BITSEA
1. He/She … Is unconcerned about the feelings of others^a	14. Cruel to animals^a	22. Tries to help when someone is hurt (for example, gives a toy)^a
2. He/She … Seems motivated to do his/her best in structured activities^a
3. He/She … Is good at keeping promises^a	58. Punishment doesn’t change his/her behavior^a
4. He/She … Feels bad or guilty when he/she does something wrong^a	67. Seems unresponsive to affection^a
5. He/She … Keeps the same friends^a	69. Selfish or won’t share^a
6. He/She … Does not show feelings or emotions	70. Shows little affection toward people^a
	72. Shows too little fear of getting hurt

All potential items relating to CU traits from the CBCL, APSD, and BITSEA.

APSD, Antisocial Process Screening Device; BITSEA, Brief Infant Toddler Social and Emotional Assessment; CBCL, Child Behavior Checklist; CU, callous-unemotional.

Item was retained in the final confirmatory factor analysis.