Free operant measurement of taste preferences in prosimian primates

The sucrose preferences of two prosimian primate species, slow loris and greater galago, were determined under aperiodic reinforcement of a free operant. Stimuli were solutions of the following concentrations: 5%, 10%, 20%, 30%, and 40%. Solutions of intermediate concentration were preferred, and thus the function relating barpresses to concentrations was nonmonotonic.     

Students’ confidence and perceived value for participating in cross-cultural wiki-based collaborations

An international wiki-based collaboration was integrated into a large introductory educational technology course enrolling 346 students, divided into 43 teams. Student teams participated in a 5-week project in which they created wiki chapters about the educational uses of specific Web 2.0 tools. Two to four international students, located in their home countries, participated on each team, collaborating via the evolving wiki, as well as other Web 2.0 tools. Using expectancy-value as our motivational framework, we gathered pre- and post-survey data, triangulated with focus group interview data, to examine changes in students’ confidence and perceived value for using these tools to facilitate international collaborations. Survey results showed significant changes in confidence and perceived value, while qualitative results provided insights into students’ perceptions of critical project components. We discuss students’ perceptions of project barriers as well as the strategies they implemented to achieve success.     

Accuracy of a screening instrument to identify potential child abuse in emergency departments

Although screening for child abuse at emergency departments (EDs) increases the detection rate of potential child abuse, an accurate instrument is lacking. This study was designed to measure the accuracy of a screening instrument for detection of potential child abuse used in EDs. In a prospective cohort study at three Dutch EDs, a 6-item screening instrument for child abuse, Escape, was completed for each child visiting the ED. The data from the completed Escape instrument was used to calculate sensitivity, specificity, and the positive/negative predictive value per item. The clinical notes and conclusions of the screen instruments of all potentially abused children reported to the hospitals’ Child Abuse Teams were collected and reviewed by an expert panel. A logistic regression model was used to evaluate the predictors of potential abuse. Completed Escape instruments were available for 18,275 ED visits. Forty-four of the 420 children with a positive screening result, and 11 of the 17,855 children with a negative result were identified as potentially abused. Sensitivity of the Escape instrument was 0.80 and specificity was 0.98. Univariate logistic regression showed that potentially abused children were significantly more likely to have had an aberrant answer to at least one of the items, OR = 189.8, 95% CI [97.3, 370.4]. Most of the children at high risk for child abuse were detected through screening. The Escape instrument is a useful tool for ED staff to support the identification of those at high risk for child abuse.     

Erfassung von Schülerselbsteinschätzungen zum schulbezogenen Sozial- und Lernverhalten – Validierung der Schülereinschätzliste für Sozial- und Lernverhalten (SSL)

The Self-Report Checklist for Social and Learning Behaviour (SSL) is a student questionnaire comparable to the Teacher Report Checklist for Social and Learning Behaviour. The SSL assesses ten facets of social and learning behaviour using self-reports by students. The present study of 1267 students aged 9 to 19 years examines the factorial structure, psychometric properties and validity of this questionnaire. The reliabilities (Cronbach’s Alpha, retest) of all ten scales were sufficiently good and the postulated factorial structure was found in exploratory as well as in confirmatory factor analysis. Correlations of SSL-scales with scales of the Differencial Aggression Questionnaire and the Strengths and Difficulties Questionnaire as well as with grades in German and mathematics indicated mainly convergent and divergent validity. Furthermore, positive correlations were found to corresponding teacher ratings.     

Rebuilding: Organizing and Operating Under New Management

In 2014, the highly experienced Head of Electronic Resources and Serials Services at Auburn University Libraries retired. Parallel changes in workflows, staffing, and organizational structure were also taking place, resulting in an intense period of transition that included merging two units. This presentation describes the transition process from the perspective of the new Head of Technical Services and one paraprofessional staff in the merged units. The presentation focuses on the processes of change, guiding philosophies, and lessons learned.