Sociodemographic, behavioral, and alcohol drinking data were collected via a telephone interview using an instrument from the Collaborative Study on the Genetics of Alcoholism (COGA), the Semi-Structured Assessment for the Genetics of Alcoholism (SSAGA) (Bucholz et al., 1994; Kuperman, Schlosser, Lindral, & Reich, 1999). The SSAGA is a polydiagnostic instrument designed to assess physical, psychological, and social indications of alcohol abuse or dependence, and other psychiatric disorders (Bucholz et a., 1994). The SSAGA has acceptable interrater test-rest reliability for DSM-III-R alcohol and other drug dependency diagnoses (K = .70 – .90; Bucholz et al., 1994). The adult and child versions of the SSAGA were administered to mothers and offspring, respectively.
