Estimation of housing needs amid population growth and change

Abstract

This article proposes a theoretical framework and more accurate methods for projecting the household growth component of estimates of housing needs. These estimates combine empirical evidence with normative assumptions about the quantity of housing expected with population growth. Recent California experience illustrates the theoretical and practical issues involved. Alternative empirical methods are used to model changes in per capita household formation and homeownership rates over time.

The results show great instability between 1960 and 2000 in the linkage between population and housing needs, casting doubt on which linkage to use for future projections. Past changes in housing growth are attributed to changing population composition and occupancy patterns for subgroups. Estimates based on a cohort method are lower than those using constant rates of housing consumption and conform much more closely to recent experience, but it may not be desirable to lock in the deficiencies of the past when projecting needs.     

Forensic Discrimination of Dyed Hair Color: II. Multivariate Statistical Analysis*,†

Abstract: This research is intended to assess the ability of UV–visible microspectrophotometry to successfully discriminate the color of dyed hair. Fifty‐five red hair dyes were analyzed and evaluated using multivariate statistical techniques including agglomerative hierarchical clustering (AHC), principal component analysis (PCA), and discriminant analysis (DA). The spectra were grouped into three classes, which were visually consistent with different shades of red. A two‐dimensional PCA observations plot was constructed, describing 78.6% of the overall variance. The wavelength regions associated with the absorbance of hair and dye were highly correlated. Principal components were selected to represent 95% of the overall variance for analysis with DA. A classification accuracy of 89% was observed for the comprehensive dye set, while external validation using 20 of the dyes resulted in a prediction accuracy of 75%. Significant color loss from successive washing of hair samples was estimated to occur within 3 weeks of dye application.     

Gang change and evolutionary theory

While most street gangs are temporary and disorganized, some have institutionalized, and a number of these show signs of evolving into more serious criminal enterprises, becoming more networked, technologically savvy and internationalized, less visible, more predatory and sometimes more violent. The boundaries that researchers have drawn between gangs and other types of criminal groups, particularly organized crime, are becoming blurred. Understanding why this is happening is crucial to planning effective responses. This article suggests that evolutionary theory, involving processes of variation, selection and replication, would constitute a valuable tool for this purpose. Using an evolutionary framework would enable the application of a longitudinal perspective to the microsocial level of analysis, the gang itself, which until now has not had as much attention as other levels of analysis in gang research. Taking inspiration from evolutionary theories in organizational sociology and economics, this article explores how evolutionary theory might be used to understand gang change and locate gangs within evolutionary sequences. It argues that adopting an evolutionary perspective will improve the capacity of law enforcement agencies to focus scarce resources where they are most needed and to plan and implement successful interventions.     

Performance evaluation and optimization of multiplex PCRs for the highly discriminating OSU 10-locus set Y-STRs

In a previous study, a new set of Y-chromosome short tandem repeats, the OSU 10-locus set (MPM1 and MPM2), was shown to have a higher discrimination power when evaluated against the 10 SWGDAM loci on a common population panel. Here, we describe the optimization of the multiplex reactions using dye-labeled primers followed by performance evaluations. The loci exhibited high precision, human male specificity, reliability in different body fluids, high sensitivity, stability, and the ability to amplify nonprobative casework and mixture samples. Stutter for the all of the loci, with the exception of the highly polymorphic locus DYS688, was similar to that observed for autosomal loci. The results of the performance evaluations reinforced the utility of these loci.     

Relationships between Agency-Specific Contact,Victimization Type,and Trust and Confidence in the Police and Courts

While the extant research on trust and confidence in the criminal justice system is broad in scope, its individual studies are more limited, leaving much unknown about these relationships. Building on prior research, the current study investigates the relationships between prior contact, victimization, and seven measures of trust and confidence in the police and courts. This study responds to calls for the relationships between trust and confidence in the criminal justice system, race/ethnicity, prior contact, and victimization to be investigated within a single study. Although rare in prior research, outcomes of trust and confidence in local police and courts are individually investigated within the same sample simultaneously. As a first, the current study also separates prior contact by police, courts, community corrections, and institutional corrections and examines four types of victimization (direct violent, vicarious violent, direct non-violent, vicarious non-violent). The latter allows for an examination of potentially more nuanced relationships between victimization and trust and confidence in the police and in the courts.     

Trauma-Informed Resource Parent Training and the Impact on Knowledge Acquisition,Parenting Self-Efficacy,and Child Behavior Outcomes: A Pilot of the Resource Parent Curriculum Parent Management Training (RPC+)

This pilot study illustrates one state’s development, implementation, and outcomes of a trauma-informed curriculum called the Resource Parent Curriculum + CARE (RPC+). The RPC+ is an intensive co-trained curriculum intended to be trauma-informed and skills-based focused on ameliorating child behavior problems that are frequently the source of parenting stress and placement instability. This article will provide a literature review of child and caregiver needs, describe the training curriculum, and present the results from the pilot implementation of the curriculum. Preliminary findings from this study show participants of the RPC+ show positive changes pre- to post-training on a number of dimensions that have been correlated with placement stability for children including knowledge of trauma, parenting self-efficacy, and child behavior outcomes.     

Parental attitudes following exposure to child abuse prevention campaign materials: a randomized trial

The purpose of this study was to evaluate child abuse prevention campaign materials. Using a randomized posttest design, 600 parents from an online research panel were recruited and surveyed. Multiple regression results indicate that exposure to the campaign materials had a significant relationship with four of the five domains (effects of child maltreatment, the appropriateness of harsh parenting, the physical dangers and needs unique to childhood, and the power to prevent child maltreatment). These results have implications for the child abuse prevention practitioners who seek to design and distribute effective campaign materials.