. Author manuscript; available in PMC: 2017 Jan 1.

Published in final edited form as: Psychopharmacology (Berl). 2015 Sep 23;233(1):39–48. doi: 10.1007/s00213-015-4074-z

Table 3.

Internal reliability (α) of parental family history (FH) of substance misuse indices

	Maternal	Paternal	Combined
FH of Smoking	0.75	0.78	0.77
FH of Alcohol Use	0.92	0.93	0.90
FH of Illicit Drug Use	0.96	0.94	0.92
Overall FH	0.89	0.88	0.90

Note. FH = family history; α = Cronbach’s alpha. Internal reliability estimates for the FH indices used in the mediation analyses are formatted in bold font.