Because studies examining youth drug use often have data with a high proportion of zeros, they often do not meet the assumptions for univariate or linear regression analyses that are typically used. We demonstrate the use of zero-inflated negative binomial regression models to address excessive zeros in drug use frequency on perceptions of…

This study examined risk factors for abusive parenting in 56 physically abusive parents and 62 matched comparison parents. The set of five risk variables was predictive of abuse status; however, not all variables were predictive when considered individually and interactions did not contribute significantly to prediction. Findings supported a…

Analysis of data from 409 substantiated child abuse/neglect cases involving Hispanic caretakers found 7 of 19 indicators correctly predicted both allegations and substantiations of re-abuse/re-neglect. These indicators included prior abuse/neglect history of family, number of victims, primary caretaker abused as child, poor neglect/abuse history…

This study examined 72 children at risk of abuse and the relevant adults, to identify variables predictive of child abuse risk. The measures used (New York Child Protective Services Review Document, Magura-Moses Child Well-Being Scales, and Beck and Jones List of Problems and Conditions) each had predictive value for case decision making.…

Adults with mental retardation (n=22,740) were studied to investigate age-related changes in functioning and their relation to subsequent mortality. Individuals with Down syndrome, compared to non-Down syndrome individuals with mental retardation, were at earlier and higher risk for adaptive regression whether prevalence, incidence, or mortality…

A two-year study of 239 families comprising both substance-abusing and nonsubstance-abusing parents found parental substance abuse greatly increased the likelihood of poorer family functioning and re-reports for maltreatment to the child protection services. The findings support the need for including parental substance abuse in risk assessment…

The early development of self-injurious behavior (SIB) in 16 young children with developmental disabilities was tracked over an 18-month period. Naturalistic observations in each child's classroom found a significant association between early SIB and low levels of social contact, which may be considered as a risk marker for SIB exacerbation.…

Uses the various strategies involved in baseball to illustrate basic concepts in game theory. Specifically discusses Willie Mays' base-stealing strategy and how it relates to probability and risk. Reminds students that expected results depend on adopted assumptions. (MJP)