Another Look at the Logical Uncertainty Principle

The Logical Uncertainty Principle is re-examined from the point of classical logic. Two interpretations are given, an objective one in terms of an axiomatic theory of information, and a subjective one based on Ramsey's theory of probability.     

Faculty roles and role preferences in ten fields of professional study

Teaching faculty in ten entry-level professional fields reported varying amounts of time devoted to teaching, research, consulting, and professional practice but did not differ in time devoted to administration. The faculty member's own role view was most closely related to time use, but for time spent in teaching and research, faculty age and institutional type (but not gender) were also significant predictors. Even after several general demographic characteristics and environmental variables that potentially differentiate professional from discipline-based faculty are taken into account, different professional fields may be characterized by group climates which influence or reinforce certain faculty roles.     

Investigation of differential movement at railroad bridge approaches through geotechnical instrumentation

Railway transitions experience differential movements due to differences in track system stiffness, track damping characteristics, foundation type, ballast settlement from fouling and/or degradation, as well as fill and subgrade settlement. This differential movement is especially problematic for high speed rail infrastructure as the ??bump?? at the transition is accentuated at high speeds. Identification of different factors contributing towards this differential movement, as well as development of design and maintenance strategies to mitigate the problem is imperative for the safe and economical operation of both freight and passenger rail networks. This paper presents the research framework and initial instrumentation details from an ongoing research effort at the University of Illinois at Urbana-Champaign. Three bridge approaches experiencing recurrent geometry problems were instrumented using multidepth deflectometers (MDDs) and strain gages to identify different factors contributing to the development of differential movements.     

A comparison of blood pressure in term, low birth-weight infants of smoking and nonsmoking mothers

Infants exposed to the components of cigarette smoke in utero are at an increased risk for perinatal death, low birth weight, sudden infant death syndrome, and premature delivery. The purpose of this pilot study was to compare blood pressure values in term low-birth weight infants (相似文献   

Measurement Invariance Testing Across Between-Level Latent Classes Using Multilevel Factor Mixture Modeling

This simulation study examines the efficacy of multilevel factor mixture modeling (ML FMM) for measurement invariance testing across unobserved groups when the groups are at the between level of multilevel data. To this end, latent classes are generated with class-specific item parameters (i.e., factor loading and intercept) across the between-level classes. The efficacy of ML FMM is evaluated in terms of class enumeration, class assignment, and the detection of noninvariance. Various classification criteria such as Akaike’s information criterion, Bayesian information criterion, and bootstrap likelihood ratio tests are examined for the correct enumeration of between-level latent classes. For the detection of measurement noninvariance, free and constrained baseline approaches are compared with respect to true positive and false positive rates. This study evidences the adequacy of ML FMM. However, its performance heavily depends on the simulation factors such as the classification criteria, sample size, and the magnitude of noninvariance. Practical guidelines for applied researchers are provided.     

Assessment for learning: using programmatic assessment requirements as an opportunity to develop information literacy and data skills in undergraduate students

Departments and programmes in higher education are required to participate in an increasing number of programme, course and student assessments. These assessment requirements are also opportunities to develop student skills related to scientific literacy and research, if students are included in the process of developing, administering and interpreting these assessments. This paper describes a course designed to build student research skills through incorporating undergraduate students into the process of programme review for a psychology department, a comprehensive assessment required of this department every five years. This course proved to be an effective way to engage students, as students developed and administered assessment surveys, analysed and interpreted results, and prepared both a professional report for the department as well as a research presentation. The paper discusses recommended course activities, and shows how this opportunity can benefit students and faculty in a myriad of ways.     

Program-Level Curriculum Planning: An Exploration of Faculty Perspectives on Two Different Campuses

This study explored faculty views about curriculum planning in academic programs. Using a semistructured format, researchers interviewed 59 faculty members at two very different campuses about their assumptions and the influences upon them as they work with colleagues in planning program curriculum. Although many of the same factors influence course and program planning, we observed that, compared to course planning, program planning is irregular (even infrequent), typically responds to a specific catalyst, and is more dependent upon a supportive institutional climate and leadership. We consider ways that institutional researchers can help provide a supportive climate for responsive and regular planning that will link planning and assessment more closely.