This paper considers the influence of labor demand for new PhD recipients on time to the doctorate. I use student-level data on all doctorates awarded by U.S. universities in seven humanities and social science fields together with the annual number of job listings by field from 1975 to 2005. An increase in the number of job listings in a field…

Judicial sanctions are used by drug courts to encourage clients to comply with program requirements. However, few studies have explored the application of sanctions in drug courts or the relationship between sanctions and drug court graduation. This article reports the results of a study of sanctions as applied in a drug court in southwest…

Objective: Childhood abuse has been linked to negative sequelae for women later in life including drug and alcohol use and violence as victim or perpetrator and may also affect the development of women's social networks. Childhood abuse is prevalent among at-risk populations of women (such as the homeless) and thus may have a stronger impact on…

Objective: This study uses data from the largest effectiveness trial to date on treatment of co-occurring posttraumatic stress and substance use disorders, using advances in statistical methodology for modeling treatment attendance and membership turnover in rolling groups. Method: Women receiving outpatient substance abuse treatment (N = 353)…

Using detailed individual-level data from public universities in the state of Ohio, I estimate the effect of various institutional expenditures on the probability of graduating from college. Using a competing risks regression framework, I find differential impacts of expenditure categories across student characteristics. I estimate that student…

In demand paging virtual memory systems, the page fault rate of a process varies with the number of memory frames allocated to the process. When an increase in the number of allocated frames leads to an increase in the number of page faults, Belady's anomaly is said to occur. In this paper, we present a probability model for Belady's anomaly. We…

Using a sample of 2,137 university students and applying the logit model, we find that the probability for students to return in fall 2008 is higher with a higher cumulative GPA, a higher grade for SE 101, and a returning status in the previous semester. Several other explanatory variables are tested and have insignificant coefficients. A few…

Biomedical research has produced vast amounts of new information in the last decade but has been slow to find its use in clinical applications. Data from disparate sources such as genetic studies and summary data from published literature have been amassed, but there is a significant gap, primarily due to a lack of normative methods, in combining…

This dissertation studies consumer search behavior in markets where buyers have incomplete information about available goods, such as markets with many sellers or frequently changing prices. In these markets, consumers engage in costly search in order to collect information necessary for making a purchase. Our method of investigation combines…

This paper adds to the considerable literature on low completion rates for apprenticeships and traineeships by looking at whether the reasons given for not completing vary by how far the individual is into their contract of training. The approach the authors take is to calculate the probability of apprentices and trainees giving a particular…

Logical reasoning skills of students enrolled in a general chemistry course at the University of Puerto Rico in Rio Piedras were measured using the Group Assessment of Logical Thinking (GALT) test. The results were used to determine the students' cognitive level (concrete, transitional, formal) as well as their level of performance by logical…

The author investigates the recent, surprising discovery of the invention of suspicion in the development of 16th century English drama to consider how this discovery might contribute to a new elaboration of narrative inquiry, specifically, to new ways of becoming a narrative inquirer. In her book, "The Invention of Suspicion," scholar…

Loneliness and perceived social support were examined in 39 adolescent boys with autism spectrum disorders (ASD) by means of a self-labeling loneliness measure, the UCLA Loneliness Scale (third version), and the Social Support Scale for Children. Twenty-one percent of the boys with ASD described themselves as often or always feeling lonely.…

Four rats' choices between two levers were differentially reinforced using a runs-test algorithm. On each trial, a runs-test score was calculated based on the last 20 choices. In Experiment 1, the onset of stimulus lights cued when the runs score was smaller than criterion. Following cuing, the correct choice was occasionally reinforced with food,…

We examined whether bilinguals' conceptual representation of homonyms in one language are influenced by meanings in the other. One hundred and seventeen Spanish-English bilinguals generated sentences for 62 English homonyms that were also cognates with Spanish and which shared at least one meaning with Spanish (e.g., plane/"plano"). Production…