A validation of the Dyslexia Adult Screening Test (DAST) in a post‐secondary population

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.     

Observations from the classroom: When analogies go wrongi

Specializations: teachers' pedagogical knowledge, analogical reasoning, conceptual change.     

“Science of the singular”: an explanatory single case study of whole school guidance counselling in Ireland

This article will discuss the findings of a single explanatory case study on the model of whole school guidance counselling in the Irish secondary school system, which was carried out during a turbulent period of policy and practice changes in the delivery of guidance counselling services to students from 2012 onwards. Although the case study is positioned within a single voluntary school, the findings may be typical of similar secondary schools settings in Ireland and abroad. Particular focus is given to explicating the key findings of the case study through the specific themes of: concepts of whole school guidance counselling, the Irish integrated model of guidance counselling, stakeholder roles and responsibilities, and the effect of resource re-allocations by policy makers funding guidance school services.     

Factors that prevent learning in electrochemistry

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     

Can narrative cutscenes improve home learning from a math game? An experimental study with children

Little is known about the instructional effects of narrative framing elements in child learning games. In this study, second and third graders (M_age = 8.24) played one of two versions of a successful, commercial mathematical learning game at home for 2 weeks (N = 95; between-subject design). The versions differed in the presence/absence of a background story conveyed through comic cutscenes at the beginning and the end of the game. Results showed that children played the game intensively in both conditions: despite not being forced to do so. Plus, they also learned from the game. As expected, children assigned to the cutscenes condition interfaced with the cutscenes. However, no between-group difference was detected in pre-post learning gains, parent-reported engagement, self-reported enjoyment, time spent with the game and the number of solved in-game tasks (all |ds| < 0.29). Altogether, no advantage or disadvantage from the narrative comic cutscenes was revealed.     

Audio-video correspondence and its role in attention and memory

This study measured the effect of audio-video channel correspondence on attention and memory. Three versions of four TV news stories were the stimuli. The high-correspondence version employed a specific audio-video semantic match, the medium-correspondence version a less specific match, and the no-correspondence version no match. High channel correspondence promoted the most efficient division of attention and the best memory scores on visual and factual recognition measures. The medium-correspondence version yielded significantly worse visual memory and attention scores, but factual attention and memory scores equal to those for the high-correspondence version. The no-correspondence version yielded high visual recognition scores, but the worst visual attention scores, suggesting that attentional capacity boundaries were overwhelmed by the stimulus. The results across all conditions suggest that when attentional capacity is exceeded, memory of the overall story is degraded.     

Development of a distance education assessment instrument

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.     

Instructional practices of teachers enrolled in educational technology and general education programs

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.