Psychometric Scaling: Avoiding the Pitfalls and Hazards

Implicational Scaling of Reading Comprehension Construct: Is it Deterministic or Probabilistic?

In English as a Second Language Teaching and Testing situations, it is common to infer about learners’ reading ability based on his or her total score on a reading test. This assumes the unidimensional and reproducible nature of reading items. However, few researches have been conducted to probe the issue through psychometric analyses. In the present study, the IELTS exemplar module C (1994) wa...

Ultrastructural Diagnosis of Soft Tissue Tumors: Avoiding Pitfalls

The use of immunohistochemistry and, more recently, molecular methods has seen a sharp reduction of the role of electron microscopy in the diagnosis of soft tissue sarcomas (1,2). Ultrastructural analysis, however, does continue to play a useful role in selected cases. The focus in this presentation is on adult soft tissue tumors; Dr. John Hicks will follow with a presentation on avoiding pitfa...

Leveraging virtualization to optimize high-availability system configurations

Leveraging redundant resources is a common means of addressing availability requirements, but it often implies redundant costs as well. At the same time, virtualization technologies are bursting into data centers with the promise of reducing costs through resource consolidation. Can virtualization and High Availability (HA) technologies be combined to optimize availability while mini...

Avoiding Pitfalls and Encouraging Success with Immuno-Oncology Clinical Trials

Adaptive psychometric scaling for video quality assessment

Video quality estimation is crucial for the efficient management of video delivery services. Particularly with the advances in screen technology and content delivery networks, getting an accurate estimation of the video quality as it is actually perceived by the user, is a key factor in delivering high quality-of-experience. Psychometric scaling provides the tools to measure the impact that dif...