Face, content, and construct validity of the EndoViS training system for objective assessment of psychomotor skills of laparoscopic surgeons

Background The aim of this study is to present face, content, and constructs validity of the endoscopic orthogonal video system (EndoViS) training system and determines its efficiency as a training and objective assessment tool of the surgeons’ psychomotor skills. Methods Thirty-five surgeons and medical students participated in this study: 11 medical students, 19 residents, and 5 experts. All participants performed four basic skill tasks using conventional laparoscopic instruments and EndoViS training system. Subsequently, participants filled out a questionnaire regarding the design, realism, overall functionality, and its capabilities to train hand–eye coordination and depth perception, rated on a 5-point Likert scale. Motion data of the instruments were obtained by means of two webcams built into a laparoscopic physical trainer. To identify the surgical instruments in the images, colored markers were placed in each instrument. Thirteen motion-related metrics were used to assess laparoscopic performance of the participants. Statistical analysis of performance was made between novice, intermediate, and expert groups. Internal consistency of all metrics was analyzed with Cronbach’s α test. Results Overall scores about features of the EndoViS system were positives. Participants agreed with the usefulness of tasks and the training capacities of EndoViS system (score >4). Results presented significant differences in the execution of three skill tasks performed by participants. Seven metrics showed construct validity for assessment of performance with high consistency levels. Conclusions EndoViS training system has been successfully validated. Results showed that EndoViS was able to differentiate between participants of varying laparoscopic experience. This simulator is a useful and effective tool to objectively assess laparoscopic psychomotor skills of the surgeons.

Estimation of the Proportion of Underachieving Students in Compulsory Secondary Education in Spain: An Application of the Rasch Model

There are very few studies in Spain that treat underachievement rigorously, and those that do are typically related to gifted students. The present study examined the proportion of underachieving students using the Rasch measurement model. A sample of 643 first-year high school students (mean age = 12.09; SD = 0.47) from 8 schools in the province of Alicante (Spain) completed the Battery of Differential and General Skills (Badyg), and these students' General Points Average (GPAs) were recovered by teachers. Dichotomous and Partial credit Rasch models were performed. After adjusting the measurement instruments, the individual underachievement index provided a total sample of 181 underachieving students, or 28.14% of the total sample across the ability levels. This study confirms that the Rasch measurement model can accurately estimate the construct validity of both the intelligence test and the academic grades for the calculation of underachieving students. Furthermore, the present study constitutes a pioneer framework for the estimation of the prevalence of underachievement in Spain.

Identifying student and teacher difficulties in interpreting atomic spectra using a quantum model of emission and absorption of radiation

Our study sets out to identify the difficulties that high school students, teachers, and university students encounter when trying to explain atomic spectra. To do so, we identify the key concepts that any quantum model for the emission and absorption of electromagnetic radiation must include to account for the gas spectra and we then design two questionnaires, one for teachers and the other for students. By analyzing the responses, we conclude that (i) teachers lack a quantum model for the emission and absorption of electromagnetic radiation capable of explaining the spectra, (ii) teachers and students share the same difficulties, and (iii) these difficulties concern the model of the atom, the model of radiation, and the model of the interaction between them.

Fashion opinion leadership, innovativeness and attitude toward advertising among Portuguese consumers

In the context of the fashion market, this study aims to analyze opinion leadership and, specifically, to verify the correlation that may exist between opinion leadership, fashion innovativeness and attitude towards fashion advertising. It is also intended to identify two different consumer groups: opinion leaders and fashion followers based on “opinion leadership” construct. Data collection was done through a self-administered questionnaire with a convenience sample of 203 graduate and postgraduate students of two universities of Porto, the second major city of Portugal. Results show a positive correlation between fashion innovativeness, fashion opinion leadership, and attitude towards fashion advertising. It was possible to identify two groups of consumers: fashion influencers, who exhibit a moderate sense of innovativeness and a positive attitude towards fashion advertising; and fashion followers who don’t consider themselves neither innovators nor opinion leaders, but have a moderate positive attitude towards fashion advertising.

An Investigation of the Features and Effectiveness of the Full-Day Early Learning Kindergarten Program in Ontario

This dissertation includes two studies. Study 1 is a qualitative case study that describes enactment of the main components of a high fidelity Full-Day Early Learning Kindergarten (FDELK) classroom, specifically play-based learning and teacher-ECE collaboration. Study 2 is a quantitative analysis that investigates how effectively the FDELK program promotes school readiness skills, namely self-regulation, literacy, and numeracy, in Kindergarteners. To describe the main components of an FDELK classroom in Study 1, a sub-sample of four high fidelity case study schools were selected from a larger case study sample. Interview data from these schools’ administrators, educators, parents, and community stakeholders were used to describe how the main components of the FDELK program enabled educators to meet the individual needs of students and promote students’ SR development. In Study 2, hierarchical regression analyses of 32,207 students’ self-regulation, literacy, and numeracy outcomes using 2012 Ontario Early Development Instrument (EDI) data revealed essentially no benefit for students participating in the FDELK program when compared to peers in Half-Day or Alternate-Day Kindergarten programs. Being older and female predicted more positive SR and literacy outcomes. Age and gender accounted for limited variance in numeracy outcomes. Results from both studies suggest that the Ontario Ministry of Education should take steps to improve the quality of the FDELK program by incorporating evidence-based guidelines and goals for play, reducing Kindergarten class sizes to more effectively scaffold learning, and revising curriculum expectations to include a greater focus on SR, literacy, and numeracy skills.

Student's cross-perception of the economic crises in the European Union and in Southeast Asia. EU Centre in Singapore Working Paper No. 11, December 2012

The financial crisis of 1997-1998 in Southeast Asia and the European Union’s financial crisis of 2008 followed by the sovereign debt crisis represented major policy events in the regions and beyond. The crises triggered policy adjustments with implications on economic and other policies. This paper aims at evaluating the perception of university students in the European Union (EU) and Southeast Asia on the management of these crises. It strives to confirm several ex ante assumptions about the relationship between students’ background, their policy orientation and their knowledge of the European Union and ASEAN policies. It also provides an analysis of the students’ evaluation of the geopolitical importance of the global regions and the EU and ASEAN policies. The paper is based on opinion surveys conducted during the first part of 2012 at four universities, two in the EU and two in ASEAN countries. In the eyes of EU and ASEAN students, the EU crisis is not being managed appropriately. The citizens of the EU surveyed were even significantly more critical of the EU’s anti-crisis measures than any other surveyed group. Their ASEAN counterparts were generally more positive in their evaluations.

Promoting interculturalism through art education : a case study Portugal and Latvia

This study examines art student’s awareness, understanding and practices of intercultural art education in higher institution of art. Specifically, the research focused on Art Academy of Latvia, Riga. The purpose was to promote “interculturalism’’ among students and to acquaint them with the knowledge and skills of developing and reflecting on their cultural values and that of others’. For 10 weeks, 7 students in the Art Academy of Latvia explored the Traditional African Ceramics. My research included data gathered from student questionnaires, class discussions, interviews, observations, student artwork and photographs from their personal activities. I likewise took note of the students’ practical works and their approach to African-based ceramics. First, in literature review, I discuss my purpose of study, why the study is important, limitations, statements of problem, and further research. Secondly, I examine culture and paradigms of cultures, comprehensive context of the African history and traditions of the African ceramics, the importance of intercultural art education. Then, I describe how the case study in Latvia was carried out among 7 participants’ who are students from 2nd year – masters’ level. The case study involved 7 students from the department of graphics, glass, ceramics and painting with the aim of promoting intercultural learning among art students. The case study reveals participants’ attitude towards intercultural education and reveal the importance of intercultural education in higher institutions of art as well as other institutions of learning. Although the participants were positive attitude towards other culture, the study reveals that creating awareness through intercultural art and exposing students to other culture enhances their creativity ability to explore other culture and they are more likely to be opened in sharing their experiences and their cultural perspective. Experiencing culture based- art create awareness of other cultures

Complexidade textual e progressão escolar em dois registos : um estudo de correlação baseado em um corpus quasi-longitudinal

Tese de doutoramento, Linguística (Linguística Educacional), Universidade de Lisboa, Faculdade de Letras, 2016

Modelling and control of refrigeration systems: an account of a pedagogic experiment in a post-secondary technical course

Comunicação apresentada no CYTEF 2016/VIII Congresso Ibérico | VI Congresso Ibero-Americano de Ciências e Técnicas do Frio, 3-6 maio 2016, Coimbra, Portugal

Meet the USA; handbook for foreign students in the United States.

"The first edition of Meet the U.S.A. was written in 1945 by a Chinese professor and former exchange student. A revised edition was published in 1952."

Development of procedures for assessing the impact of vocational education research and development on vocational education (Project IMPACT).

Funding agreement no.: R-31-20-X-0141-166.

The undergraduate and his college,

Mode of access: Internet.

The college man and the college woman.

Mode of access: Internet.

Guide book for American students in the British Isles.

Mode of access: Internet.

Local impacts of global change: shifting range limits, advancing phenology, and communicating research

Thesis (Ph.D.)--University of Washington, 2016-06