Alcohol-related problems and collegiate drinking patterns

Six kinds of collegiate problem drinking were examined utilizing a ceptualized relationship among the variables of student religious commitment, parental attitude toward drinking, neutralization of drinking behavior, drinking before college, anticipated ethos of college life, social orientation in college, and quantity-frequency of alcohol consumption. Self-administered questionnaires were collected from 534 college students and analyzed by path analysis, which explained up to 47% of the variation in certain kinds of problem drinking. The strongest single predictor of problem drinking was found to be quantity and frequency of consumption, but precollege drinking was also important.     

Educational Aspirations of Male and Female Adolescents from Single-Parent and Two Biological Parent Families: A Comparison of Influential Factors

Youth from single-parent families report lower educational aspirations than those from two-parent families. This study explored the influence of background factors (gender, grade, parental education and SES), parental involvement with education, academic self-concept, and peer influences on educational aspirations. The participants were Canadian adolescents; 2751 from two parent and 681 from single-parent families. ANOVA results showed that adolescents from single-parent families scored significantly lower than adolescents from intact families on educational aspirations, and other predictor variables. Hierarchical regression analysis showed that the pattern of relationships between educational aspirations and other factors was very similar for adolescents from both types of families; namely academic self-concept significantly predicted educational aspirations. The family involvement and background factors predicted educational aspirations via academic self-concept. Having academically oriented peers was especially beneficial to adolescents from single-parent families. Implications for intervention programs are discussed. The research was supported by a Social Sciences and Humanities Research Council of Canada Grant. Rashmi Garg is an Associate professor in the Department of Psychology at Laurentian University. She received her PhD in 1983 from the University of Ottawa. Basically she is interested in applied research in the areas of educational and psychological measurement and testing. More specifically she is interested in the adolescent's education and career development. Stella Melanson received a master's degree in Human Development from Laurentian University in 2003. She is working as a research data analysis coordinator for Ontario Early Years Education and Social Planning Council. Her interest is in early childhood education. Elizabeth Levin is an Associate Professor and Chair of the Department of Psychology at Laurentian University. She received her PhD in 1986 from the University of Waterloo. Her major research interests focus on parenting styles and children's conceptions of parenting.     

Effectiveness of comparison overlays generated with DentalPrint software in bite mark analysis

Validation studies of the new DentalPrint software were carried out with experimental bite marks in pigskin. The bite marks were digitally photographed according to the ABFO guidelines for evidence collection. Dental casts used in the experiment were scanned in 3D and 2D, and comparison overlays were generated using DentalPrint and Adobe Photoshop software, respectively. Digitized photographs of the experimental bite marks and the biting edges obtained in the overlays were compared by two different examiners to analyze the impact of training and experience with the two methods. Receiver operating characteristic (ROC) analysis, sensitivity, specificity, and 95% confidence intervals for each cutoff point were calculated. The expert examiner using DentalPrint obtained the best results, with an area under the ROC curve of 0.76 (SE=0.057; CI at 95%=0.652-0.876). Fairly high specificity values were found for DentalPrint, and the best results were obtained for the cutoff value that discriminated between the examiner's response "biter" and the rest of the possible (specificity 97.9%, CI at 95%=93.2%-99.6%). Therefore, the results presented here indicate that DentalPrint is a useful, accurate tool for forensic purposes, although further research on the comparison process is needed to enhance the validity of bite mark analysis.