Comprehending animations: Effects of spatial cueing versus temporal scaling

In the present experiment the animation of the operating mechanism of a pendulum clock was used in order to compare the effects of spatial cueing with those of temporal scaling on the comprehension of the animation. The presentation speed of the clock mechanism (normal vs. fast) and signalling cues to three different parts of the mechanism (weight, pendulum, and an irrelevant gear as blinking elements) were used in a 2 × 3 between subjects design with 144 participants. It was found that compared to normal speed condition, understanding was improved in the fast speed condition, but was unaffected by any of the cueing conditions. The results indicate that, although guidance of attention to relevant parts of an animation is often seen as a key to effective instructional design, the way temporal manipulations affect understanding is independent from local attention guiding.     

Revisit,Reform, and Redesign: A Novel Dissection Approach for Demonstrating Anatomy of the Orbit for Continuing Professional Development Education

Advanced postgraduate medical education for health-care professionals is constantly evolving. Understanding facial anatomy and especially its vascular system is crucial when performing soft tissue filler injections to avoid adverse events including tissue loss or irreversible blindness. Standard anatomical resources often fall short of elucidating clinically relevant concepts in more highly specialized areas of interest. A novel dissection approach for demonstrating the anatomy of the lateral orbit was presented at scientific meetings to participants from dermatology, plastic surgery, and general practice. Results from the post-course online survey (n = 52) were analyzed. The results of the survey reveal a high educational impact and a high clinical relevance of the novel dissection approach. In addition, the majority of respondents (97.7%; n = 51) felt that the exposed anatomical structure of the orbit and face improved their ability to safely perform cosmetic procedures on the face. More experienced respondents who had previously attended at least five cadaveric dissections were more likely to strongly agree that reviewing anatomy through this novel dissection approach increased their confidence in avoiding periorbital vascular danger zones. As minimally invasive outpatient procedures continue to evolve, practicing physicians and mid-level providers often face the challenge of having to reconcile preexisting anatomical knowledge with new clinical practice. Skills required to navigate high impact anatomy include visualization of structures that form the navigational landscape and avoidance of key danger zones. The novel dissection approach to the lateral orbit reflects the increasing focus on revisiting, reforming, and redesigning anatomy for continuing professional development activities.     

A dual-route cascaded model of reading by deaf adults: evidence for grapheme to viseme conversion

There is an ongoing debate whether deaf individuals access phonology when reading, and if so, what impact the ability to access phonology might have on reading achievement. However, the debate so far has been theoretically unspecific on two accounts: (a) the phonological units deaf individuals may have of oral language have not been specified and (b) there seem to be no explicit cognitive models specifying how phonology and other factors operate in reading by deaf individuals. We propose that deaf individuals have representations of the sublexical structure of oral-aural language which are based on mouth shapes and that these sublexical units are activated during reading by deaf individuals. We specify the sublexical units of deaf German readers as 11 "visemes" and incorporate the viseme set into a working model of single-word reading by deaf adults based on the dual-route cascaded model of reading aloud by Coltheart, Rastle, Perry, Langdon, and Ziegler (2001. DRC: A dual route cascaded model of visual word recognition and reading aloud. Psychological Review, 108, 204-256. doi: 10.1037//0033-295x.108.1.204). We assessed the indirect route of this model by investigating the "pseudo-homoviseme" effect using a lexical decision task in deaf German reading adults. We found a main effect of pseudo-homovisemy, suggesting that at least some deaf individuals do automatically access sublexical structure during single-word reading.     

Determinanten der Studierbereitschaft unter besonderer Berücksichtigung von Studiengebühren

Even more than other European countries, Germany must fear a serious future skills shortage and lack of experts. Therefore, increasing the proportion of high school graduates who wish to study at a university is a clear political objective. The aim of this paper is to identify variables that hinder or support the decision to pursue university studies. We used longitudinal data of 23,000 graduates of upper secondary school of the years 2002, 2004, 2006, and 2008 to analyze how tuition fees (which are charged only in some of the German federal states), family status, and students?? own cost-benefit analyses impacted their decision in favor or against taking up university studies. Results showed that the subjective costs of higher education were highest for persons of low social economic background, and for women. Also, the introduction of tuition fees in some federal states in the year 2006 lowered the percentage of students who wanted to enter higher education. Contrary to our expectations, however, this effect was observed in all federal states, irrespective of whether they had introduced tuition fees or not. Our results suggest that participation in higher education can be increased by both lowering (social and psychological) costs and raising (social and psychological) benefits of higher education.     

Practical issues in field based testing of oral reading fluency at upper elementary grades

In this series of studies, we explore the ideal frequency, duration, and relative effectiveness of measuring oral reading fluency. In study one, a sample of 389 fifth graders read out loud for 1 min and then took a traditional state-level standardized reading test. Results suggest administering three passages and using the median yields the highest predictive validity. Study two compared oral reading fluency rates at 30 and 60 s for 815 elementary and middle school students on the same passage. Results indicate that the 30 s measures yield a comparable score. Study three found relatively similar predictive validity of oral reading fluency for 67 fourth- and 125 sixth-grade students on Aimsweb, EasyCBM, and DIBELS. Implications for practice are discussed.     

Measuring Teaching Effectiveness: Correspondence Between Students’ Evaluations of Teaching and Different Measures of Student Learning

Relating students?? evaluations of teaching (SETs) to student learning as an approach to validate SETs has produced inconsistent results. The present study tested the hypothesis that the strength of association of SETs and student learning varies with the criteria used to indicate student learning. A multisection validity approach was employed to investigate the association of SETs and two different criteria of student learning, a multiple-choice test and a practical examination. Participants were N?=?883 medical students, enrolled in k?=?32 sections of the same course. As expected, results showed a strong positive association between SETs and the practical examination but no significant correlation between SETs and multiple-choice test scores. Furthermore, students?? subjective perception of learning significantly correlated with the practical examination score whereas no relation was found for subjective learning and the multiple choice test. It is discussed whether these results might be due to different measures of student learning varying in the degree to which they reflect teaching effectiveness.     

Distance Education in Physics via the Internet

Abstract

This article describes three connected projects in physics: (1) a very successful course at the university level; (2) a collection of several thousand multimedia materials, its status and evaluation, and its dissemination; and (3) Web experiments—experiments that can be operated remotely from a distance via the Internet.     

Exploring the Development of Conceptual Understanding through Structured Problem‐solving in Physics

A study on the effect of a structured problem‐solving strategy on problem‐solving skills and conceptual understanding of physics was undertaken with 189 students in 16 disadvantaged South African schools. This paper focuses on the development of conceptual understanding. New instruments, namely a solutions map and a conceptual index, are introduced to assess conceptual understanding demonstrated in students’ written solutions to examination problems. The process of the development of conceptual understanding is then explored within the framework of Greeno’s model of scientific problem‐solving and reasoning. It was found that students who had been exposed to the structured problem‐solving strategy demonstrated better conceptual understanding of physics and tended to adopt a conceptual approach to problem‐solving.