Ninety-two adult twin-pairs were recruited. Twin zygosity was determined by self-report inventory. Monozygotic twins resembled one another more than dizygotic twins in most measures of both level and lability of mood, which provides modest evidence for a genetic influence on subclinical levels of depression. (Author/ABB)

Administered the Beck Hopelessness Scale to alcoholic (N=20) and heroin-addicted (N=20) women. Results indicated that although both groups expressed comparable levels of overall hopelessness, alcoholic women anticipated more success and better lives in the next 10 years than did the heroin-dependent women. (LLL)