Considerations for Test Selection: How Do Validity and Reliability Impact Diagnostic

Nine preschool and school-age language assessment tools found to have acceptable levels of identification accuracy were evaluated to determine their overall levels of psychometric validity for use in diagnosing the presence/absence of language impairment. Eleven specific criteria based on those initially devised by McCauley and Swisher (1984) were applied to each of the selected tests in order to determine each test’s overall level of psychometric validity. Results indicated that each of the selected assessment tools met at least eight of the 11 criteria used to evaluate each assessment tool. Five tests met 10 out of 11 criteria. Findings are discussed to assist clinicians in applying psychometric criteria to these selected tests, as well as those not reviewed as part of this current review of standardized assessment tools. A decision tree is included within the discussion of this study’s findings to aid clinicians in the selection of standardized assessment tools that are most appropriate for clinical use, based on their psychometric characteristics

Open-Source ANSS Quake Monitoring System Software

ANSS stands for the Advanced National Seismic System of the U.S.A., and ANSS Quake Monitoring System (AQMS) is the earthquake management system (EMS) that most of its member regional seismic networks (RSNs) use. AQMS is based on Earthworm, but instead of storing files on disk, it uses a relational database with replication capability to store pick, amplitude, waveform, and event parameters. The replicated database and other features of AQMS make it a fully redundant system. A graphical user interface written in Java, Jiggle, is used to review automatically generated picks and event solutions, relocate events, and recalculate magnitudes. Add‐on mechanisms to produce various postearthquake products such as ShakeMaps and focal mechanisms are available as well. It provides a configurable automatic alarming and notification system. The Pacific Northwest Seismic Network, one of the Tier 1 ANSS RSNs, has modified AQMS to be compatible with a freely available, capable, open‐source database system, PostgreSQL, and is running this version successfully in production. The AQMS Software Working Group has moved the software from a subversion repository server hosted at the California Institute of Technology to a public repository at gitlab.com. The drawback of AQMS as a whole is that it is complex to fully configure and comprehend. Nevertheless, the fact that it is very capable, documented, and now free to use, might make it an attractive EMS choice for many seismic networks

The Effects of Supplemental Joint Storybook Reading on Preschool Students\u27 Use of Strident Sounds: A Preliminary Investigation

Purpose: The purpose of this study was to determine the impact of adding supplemental, joint storybook reading to existing cycles-based phonological remediation on the speech intelligibility of a group of preschool children with phonological disorders. Method: Sixteen preschool children, ages 3;8 (years; months) to 5;0, with moderate to severe phonological dis-orders served as the participant group for this study. The treatment group received treatment in the form of supple-mental joint storybook reading using books with a high frequency of strident sounds within the text of the story. Independent–samples t tests were used to study quantitative differences in the control and treatment groups following treatment. Results: Results indicated a significant difference in the presence of stridency observed in participants, with the treatment group showing greater positive change in the presence of stridency in their speech at completion of the study. Conclusion: Results from the study suggest that exposure to focused auditory input in the form of supplementary joint storybook reading, combined with traditional cycles-based phonological remediation, is an effective manner for improving speech intelligibility in children with moderate to severe expressive phonological disorders

Phase transitions and the internal noise structure of nonlinear Schr\"odi nger equation solitons

We predict phase-transitions in the quantum noise characteristics of systems described by the quantum nonlinear Schr\"odinger equation, showing them to be related to the solitonic field transition at half the fundamental soliton amplitude. These phase-transitions are robust with respect to Raman noise and scattering losses. We also describe the rich internal quantum noise structure of the solitonic fields in the vicinity of the phase-transition. For optical coherent quantum solitons, this leads to the prediction that eliminating the peak side-band noise due to the electronic nonlinearity of silica fiber by spectral filtering leads to the optimal photon-number noise reduction of a fundamental soliton.Comment: 10 pages, 5 figure

Case-based Perspective-Taking as a Mechanism to Improve Metacognition and Higher-Level Thinking in Undergraduate Speech-Language Pathology Students

This case study addressed the authors’ efforts to design an 8-week small-group independent study (IS) experience that facilitated undergraduate speech-language pathology students’ (n=19) higher-level thinking and overall metacognitive awareness. We hoped to encourage both in order to improve students’ overall cognitive growth while enhancing their reflection about and knowledge of professional perspectives regarding the assessment and treatment of laryngeal cancer. To take on this challenge, we combined case-based learning (CBL) and perspective-taking (PT) pedagogies across the IS. Students completed the Metacognitive Awareness Inventory (MAI) pre- and post-IS, and written reflections after each of eight weekly discussion meetings. The MAI was quantitatively analyzed, while reflections were qualitatively coded using Bloom’s taxonomy. Findings indicated that metacognitive awareness significantly improved and that higher-level cognitive processing was increasingly evidenced across students’ IS experience. Results indicate the potential to maximize metacognition and cognitive processing by combining CBL and PT by the methods used here. Applications of combined CBL and PT to other disciplines and teaching and learning situations will be discussed along with the implications of our findings

Making Space for Failure in the Scholarship of Teaching and Learning: A Blueprint

In this essay, we offer a typology of failure in the scholarship of teaching and learning (SoTL) to serve as the foundation for a new line of inquiry to be featured in this new section of Teaching & Learning Inquiry — SoTL in Process. Through the typology, we advocate for making space to talk about failure and its many forms in SoTL. Read the corresponding ISSOTL blog post here

Jet Production by Virtual Photons

The production of jets is studied in collisions of virtual photons, gamma*-p and gamma*-gamma*, specifically for applications at HERA and LEP2. Photon flux factors are convoluted with matrix elements involving either direct or resolved photons and, for the latter, with parton distributions of the photon. Special emphasis is put on the range of uncertainty in the modeling of the resolved component. The resulting model is compared with existing data.Comment: 1+10 pages, LaTeX2e, 4 eps figures, to appear in the Proceedings of the International Conference on the Structure and Interactions of the Photon; PHOTON99, 23-27 May 1999, Freiburg im Breisgau, German

Open-Source ANSS Quake Monitoring System Software

ANSS stands for the Advanced National Seismic System of the U.S.A., and ANSS Quake Monitoring System (AQMS) is the earthquake management system (EMS) that most of its member regional seismic networks (RSNs) use. AQMS is based on Earthworm, but instead of storing files on disk, it uses a relational database with replication capability to store pick, amplitude, waveform, and event parameters. The replicated database and other features of AQMS make it a fully redundant system. A graphical user interface written in Java, Jiggle, is used to review automatically generated picks and event solutions, relocate events, and recalculate magnitudes. Add‐on mechanisms to produce various postearthquake products such as ShakeMaps and focal mechanisms are available as well. It provides a configurable automatic alarming and notification system. The Pacific Northwest Seismic Network, one of the Tier 1 ANSS RSNs, has modified AQMS to be compatible with a freely available, capable, open‐source database system, PostgreSQL, and is running this version successfully in production. The AQMS Software Working Group has moved the software from a subversion repository server hosted at the California Institute of Technology to a public repository at gitlab.com. The drawback of AQMS as a whole is that it is complex to fully configure and comprehend. Nevertheless, the fact that it is very capable, documented, and now free to use, might make it an attractive EMS choice for many seismic networks

Soliton back-action evading measurement using spectral filtering

We report on a back-action evading (BAE) measurement of the photon number of fiber optical solitons operating in the quantum regime. We employ a novel detection scheme based on spectral filtering of colliding optical solitons. The measurements of the BAE criteria demonstrate significant quantum state preparation and transfer of the input signal to the signal and probe outputs exiting the apparatus, displaying the quantum-nondemolition (QND) behavior of the experiment.Comment: 5 pages, 5 figure

Optimized quantum nondemolition measurement of a field quadrature

We suggest an interferometric scheme assisted by squeezing and linear feedback to realize the whole class of field-quadrature quantum nondemolition measurements, from Von Neumann projective measurement to fully non-destructive non-informative one. In our setup, the signal under investigation is mixed with a squeezed probe in an interferometer and, at the output, one of the two modes is revealed through homodyne detection. The second beam is then amplitude-modulated according to the outcome of the measurement, and finally squeezed according to the transmittivity of the interferometer. Using strongly squeezed or anti-squeezed probes respectively, one achieves either a projective measurement, i.e. homodyne statistics arbitrarily close to the intrinsic quadrature distribution of the signal, and conditional outputs approaching the corresponding eigenstates, or fully non-destructive one, characterized by an almost uniform homodyne statistics, and by an output state arbitrarily close to the input signal. By varying the squeezing between these two extremes, or simply by tuning the internal phase-shift of the interferometer, the whole set of intermediate cases can also be obtained. In particular, an optimal quantum nondemolition measurement of quadrature can be achieved, which minimizes the information gain versus state disturbance trade-off