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41.
In Ontario, Canada, there is a demand for psychometrically robust screening tools capable of efficiently identifying students with specific learning disabilities (SLD), such as dyslexia. The present study investigated the ability of the Dyslexia Adult Screening Test (DAST) to discriminate between 117 post‐secondary students with carefully diagnosed SLDs and 121 comparison students. Results indicated that the DAST correctly identified only 74% of the students with SLDs as ‘highly at risk’ for dyslexia. Although employing the cutoff for ‘mildly at risk’ correctly identified 85% of the students with SLDs, this also increased the percentage of students with no major history of learning problems identified as ‘at risk’ for dyslexia from 16% to 26%. These findings suggest that the DAST in its present form is limited in its ability to screen for SLDs. Implications for future research are discussed. 相似文献
42.
Dr David F. Treagust Susan M. Stocklmayer Allan Harrison Grady Venville Rodney Thiele 《Research in Science Education》1994,24(1):380-381
Specializations: teachers' pedagogical knowledge, analogical reasoning, conceptual change. 相似文献
43.
Factors that prevent learning in electrochemistry 总被引:1,自引:0,他引:1
Electrochemistry plays an important role in curricula, textbooks, and in everyday life. The purpose of the present study was to identify and understand secondary‐school students' problems in learning electrochemistry at an introductory chemistry level. The investigation covered four areas: (a) electrolytes, (b) transport of electric charges in electrolyte solutions, (c) the anode and the cathode, and (d) the minus and plus poles. Written tests were given to high‐school students in five cycles. The population from which random samples were drawn totalled 15,700 subjects. Students were asked to select the correct answers and to justify their choices. It was found that students based their reasoning on four alternative concepts: (a) During electrolysis, the electric current produces ions; (b) electrons migrate through the solution from one electrode to the other; (c) the cathode is always the minus pole, the anode the plus pole; and (d) the plus and minus poles carry charges. The results suggest a teaching strategy in which students first experience and learn about electrochemistry concepts. In the second step, appropriate concept terms are added, and students then are confronted with the alternative concepts described in this article. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 44: 258–283, 2007 相似文献
44.
Michele Kane 《Roeper Review》2016,38(4):237-244
For over 70 years Annemarie Roeper was able to breathe new life into many aspects of giftedness and gifted education. Capturing the magic of such a charismatic and visionary leader is a challenge. However, stories and storytelling provide a pathway into the narrative of Annemarie’s life as it evolved from young adulthood to elderhood. This article provides the lessons learned during a long-standing friendship and insights into her multidimensional personality. 相似文献
45.
Patrick J. Harrison Farhad Saba Bonnie J. Seeman Gina Molise Robert Behm Michael D. Williams 《Educational technology research and development : ETR & D》1991,39(4):65-77
The study described in this article takes the view that distance education programs are dynamic systems with multiple constituencies.
Literature on distance education programs as complex systems and on the critical constituency approach to program evaluation
was used to guide the development of a questionnaire designed to assess the components of a distance education program. Instrument
development was conducted in four phases using both quantitative and qualitative methods. The data from this study suggest
that there are four major components of effectiveness in distance education programs: instruction, management, telecommuting,
and support. Within each of these components there are from two to five subcomponents, 14 components in all, which can be
used to assess distance education programs. The assessment scale which was developed measures these four components and their
subcomponents. 相似文献
46.
Marcie J. Bober Howard J. Sullivan Deborah L. Lowther Patrick Harrison 《Educational technology research and development : ETR & D》1998,46(3):81-97
This study investigated classroom practices of 38 teachers enrolled in university masters' degree programs in educational technology and in other areas of education. The classroom practices related to five key concepts associated with educational technology: (a) learner-centered instruction, (b) instructional design, (c) media and technology, (d) assessment, and (e) instructional alignment. Teachers rated their frequency of use of desirable practices in these five areas on a 30-item Likert type survey. In addition, one class of students per teacher rated its own teacher's frequency of use of the practices on 20 items parallel to items on the teacher survey. The mean overall rating across all teachers for the classroom practice items was very close to Often, or 4.0, on the 5-point scale. There were few reported differences between the teachers enrolled in educational technology programs and those enrolled in other education programs. Student ratings indicated less frequent teacher use of the desirable practices on 16 of the 20 common items, with significantly lower student ratings on 8 of these items. However, there was strong teacher-student agreement on several other comparisons.The study reported in this article was conducted as a doctoral dissertation at Arizona State University. 相似文献
47.
Teaching Science Effectively With Analogies: An Approach for Preservice and Inservice Teacher Education 总被引:1,自引:0,他引:1
Treagust David F. Harrison Allan G. Venville Grady J. 《Journal of Science Teacher Education》1998,9(2):85-101
Journal of Science Teacher Education - 相似文献
48.
The study investigated school psychologists' continuing professional development (CPD) needs and their relationship to selected demographic factors, preservice training, incentives, and typical engagement in various CPD activities. A survey questionnaire was mailed to 500 randomly selected National Association of School Psychologists (NASP) members, and responses were received from 235. Respondents reported their greatest CPD needs to be in the areas of direct service and consultation. No demographic variables were related to respondents' CPD needs. Few preservice training or incentive factors were related to CPD needs. Respondents' perceived value of preservice training in CPD management was related to their CPD needs, but few respondents reported that they had received this type of preservice training. Several personal incentives for CPD, including self‐assessment of CPD needs, opportunity to practice new skills and receive feedback during CPD training, and opportunity to evaluate the effectiveness of CPD training and CPD goal attainment were related to CPD needs. Respondents' CPD needs in each specific skill area, including direct service, consultation, assessment, program planning and evaluation, supervision, and research, had significant but low correlations with the amount of actual CPD activity in the respective skill area. © 2001 John Wiley & Sons, Inc. 相似文献
49.
50.
Benjamin Kane Williams Ross H. Sanders Joong Hyun Ryu Pitre C. Bourdon Philip Graham-Smith Peter J. Sinclair 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(2):202-214
Magnetic-inertial measurement units (MIMUs) are becoming more prevalent in sports biomechanics and may be a viable tool to evaluate kinematic parameters. This study examined the accuracy of a MIMU to estimate orientation angles under static conditions and dynamically from a squash racket during a forehand drive shot. A MIMU was mounted onto a goniometer and moved through 0–90°, with static data collected at 10° increments during 10 repetitions of all three axes. Typical error analyses showed the MIMU to be very reliable (TE ≤ 0.03°). MIMU accuracy was determined via intraclass correlation coefficients (ICC) (r > 0.999, p < 0.001). An ordinary least products regression showed no proportional bias and minimal fixed bias for all axes. Dynamic accuracy was assessed by comparing MIMU and optical motion capture data of squash racket swing kinematics. A MIMU was fixed onto a racket and 10 participants each hit 10 forehand shots. Mean orientation angle error at ball impact was <0.50° and ICC showed very high correlations (r ≥ 0.988, p < 0.001) for all orientations. Swing phase root mean squared errors were ≤2.20°. These results indicate that a MIMU could be used to accurately and reliably estimate selected racket swing kinematics. 相似文献