As researchers in the social sciences, we are often interested in studying not directly observable constructs through assessments and questionnaires. But even in a well-designed and well-implemented study, rapid-guessing behavior may occur. Under rapid-guessing behavior, a task is skimmed shortly but not read and engaged with in-depth. Hence, a…

The recent popularity of models that capture the dynamic coevolution of both network structure and behavior has driven the need for summary indices to assess the adequacy of these models to reproduce dynamic properties of scientific or practical importance. Whereas there are several existing indices for assessing the ability of the model to…

This research investigates if ethical behaviors and personal finances are related using a large scale U.S. random survey called the National Longitudinal Survey of Youth 1997 (NLSY97). Fifteen indicators covering both ethical and unethical behaviors are compared to net worth for people in their 20s and 30s, who are called Generation Y. Breaking…

Fragmented sleep is common in infancy. Although night awakening is known to decrease with age, in some infants night awakening is more persistent and continues into older ages. However, the influence of fragmented sleep on development is poorly known. In the present study, the longitudinal relationship between fragmented sleep and psychomotor…

Evidence points to associations between the socioeconomic composition of neighborhoods and children's and adolescents' development. A minimal amount of research, however, examines how timing of exposure to neighborhood socioeconomic conditions matters. This study used longitudinal data from the NICHD Study of Early Child Care and Youth Development…

Objective: The authors examined perceived norms and drinking among college students who attended high schools in rural and urban communities. Participants and Methods: Undergraduates (99 men and 85 women) who attended high schools in communities with populations ranging from less than 100 to more than 400,000 completed surveys assessing perceived…

Many adolescents experiment with marijuana; the National Institute on Drug Abuse estimates that 46% of high school seniors have tried this drug at some time. Pushing boundaries is what young people do, and some researchers believe that trying marijuana is a normal part of growing up. RAND Corporation researchers have revisited Shedler and Block's…

Purpose: This is the second article reporting a project that (a) characterized the longitudinal functional patterns of residents in an affordable, assisted living housing (ALH) milieu for low-income people and (b) compared the ALH residents' functional patterns with those for similarly low-income, community-dwelling people. Design and Methods:…

Purpose: The purpose of this study was to examine and compare the development of proto-imperative and proto-declarative utterances in normally developing, non-neonatally screened, profoundly deaf toddlers. Method: Both types of proto-declarative are considered to be the most basic prelinguistic and early linguistic communicative functions.…

Convergence between temperament ratings from two different sources (mothers and observers) and observer codings of peer-peer interaction was assessed. (Author/MP)

Social competence of 239 students with and without learning disabilities (LD) was followed from kindergarten through fifth grade. Students with LD demonstrated the same trends in social competence as non-LD students. Students with LD differed significantly from average-high-achieving non-LD students on social skills and behavior problems, but not…

This paper presents preliminary data on 100 subjects of the first longitudinal study of Canadian widows. Widows have more psychological problems than a comparison group of women under treatment for breast cancer. Widows living alone with dependent children report higher stress levels. (Author)

Many colleges have initiated studies in conjunction with the development of campus alcohol programs, but few go beyond the student body to describe alcohol use by all the individuals on a college campus. All fulltime students, faculty and staff of a small campus community were surveyed to compare generational (students vs. staff) and…

A three-year study found that children with learning disabilities displayed a persistent pattern of maladaptive classroom behavior that distinguished them from average achievers and was associated with continued underachievement, especially for attention and conduct problem subtypes. The developmental relationship between learning disabilities,…

Examined the association between psychosocial development and the timing of first sexual intercourse in a sample of white, rural adolescents. Two theoretical models were tested. For both boys and girls, early timing of first sexual intercourse was associated with longitudinal patterns of greater transition proneness and poorer psychosocial…