Computerised screening for dyslexia in adults

Identifying dyslexia in adulthood presents particular challenges because of complicating factors such as acquisition of compensatory strategies, differing degrees of intervention and the problem of distinguishing dyslexic adults from those whose literacy difficulties have non‐cognitive causes. One of the implications is that conventional literacy measures, per se, do not provide a satisfactory basis for screening for dyslexia in adulthood as some dyslexic adults have above‐average literacy skills and some non‐dyslexic adults have very poor literacy skills. This study examined an alternative approach to dyslexia screening, using three tests that depend heavily on phonological processing, lexical access and working memory, but which are not conventional measures of literacy. Using these tests, which are computer delivered, 70 dyslexic adults from three different types of educational institution were compared with 69 non‐dyslexic adults from the same institutions. The results showed that the dyslexic and non‐dyslexic groups were significantly different on all three computer‐based tests, with an average effect size of 1.55. Adaptive versions of these tests were then created to reduce overall administration time for the suite to about 15 minutes. Analysis showed that the combined scaled scores from the adaptive versions of the three tests significantly discriminated the dyslexic from the non‐dyslexic group with an increased effect size of 2.07 and with a sensitivity rate of 90.6% and a specificity rate of 90.0%. It was concluded that this approach is a valid and useful method of identifying dyslexia in adulthood, which, given the ease of administration to large numbers of adults, has noted advantages for education and employment.     

Examining the Effectiveness of a Multicomponent Reading Comprehension Intervention in Middle Schools: A Focus on Treatment Fidelity

In this experimental study, we examined the effects of a multicomponent reading comprehension intervention in sixth- to eighth-grade English language arts classes with a focus on factors to enhance treatment implementation. We tested the contribution of a theoretically derived fidelity framework that included adherence, quality, dosage, program differentiation, and student responsiveness. The study was conducted in three schools, involving 14 teachers and 859 students. English language arts classes were randomly assigned to the Comprehension Circuit Training intervention (n?=?30) or typical practice comparison (n?=?31) conditions, and all teachers taught in both conditions. Findings indicated that there was no reliable difference between the intervention and typical practice groups on standardized or researcher-developed proximal measures. To investigate the relationship between fidelity and student outcomes, we conducted a confirmatory factor analysis (CFA) to determine the relation of the indicators to a latent fidelity factor. Results of the CFA revealed a single fidelity factor composed of the adherence, quality, dosage, student responsiveness, and program differentiation variables. The fidelity factor was statistically significantly related to outcomes on a standardized comprehension measure (γ?=?.86, p?γ?=?.52, p?相似文献   

Effect of odor preexposure on acquisition of an odor discrimination in dogs

In two experiments, we investigated the impact of odor preexposure treatments on the acquisition of an olfactory discrimination in dogs. In the first experiment, four groups of dogs were each given five days’ odor-exposure treatment prior to discrimination training. Dogs in the exposure group were exposed to anise extract (S+) for 30 min daily. Dogs in the Pavlovian-relevant pairing group received six daily delayed-conditioning trials to the same S+. The Pavlovian-irrelevant pairing group received conditioning trials to almond extract (S'). Dogs in the control group received no pretreatment. All of the dogs were then trained to detect S+ from a background pine odor (an AX-vs.-X discrimination). The Pavlovian-relevant pairing group acquired the odor discrimination significantly faster than all of the other exposure and control groups, and the remaining groups acquired the discrimination at the same rate as the no-exposure control group. In a second experiment, we extended these results to a within-subjects design using an AX-versus-BX discrimination. Six dogs were simultaneously trained on two different odor discriminations, one discrimination in which the S+ was previously Pavlovian conditioned, and one discrimination in which the S+ was novel. All of the dogs learned the odor discrimination with the previously conditioned S+ faster than they learned the novel odor discrimination, replicating the results of Experiment 1, and demonstrating that familiarity in the form of Pavlovian conditioning enhances odor-discrimination training. The potential mechanisms of the facilitated transfer of a Pavlovian conditioned stimulus to discrimination training are discussed.     

Changing Conceptions in the Relative Sequence of Major Topics in General Science Textbooks (1911-1934)

The authors examined the relationship between fifth-grade students' verbal ability level and the adaptive nature of the questions that these students asked in attempting to find a correct synonym for vocabulary items. Questions were divided into necessary questions (questions posed after a wrong provisional answer) and unnecessary questions (questions posed after a right provisional answer). Another division of questions was into helpful questions (questions that led to a correction of a wrong provisional answer) and harmful questions (questions that led to a shift from a right to a wrong answer). Also examined were discontinued inquiries (instances in which a student decided to break off an inquiry in favor of inferring the right alternative). The results showed that students with high verbal ability asked more necessary questions and stepped up the number of unnecessary questions for difficult items, signaling that these questions were asked to increase confidence in knowing. Students' verbal ability did not affect the frequency of discontinued inquiries, but a significant effect was found for the helpfulness of these inquiries. A detailed account of the various processes and stages involved in students' questioning is presented.     

Test Anxiety Interventions for Children and Adolescents: A Systematic Review of Treatment Studies from 2000–2010

High‐stakes tests have played an increasingly important role in how student achievement and school effectiveness are measured. Test anxiety has risen with the use of tests in educational decision making. Students with high test anxiety perform poorly on tests when compared to students with low test anxiety. School psychologists can play an important role as experts both in tests and measurement and mental health in providing consultation and treatment for students with test anxiety. This article describes the results of a systematic literature review of the last 10 years of test‐anxiety interventions. Results indicate that there are few studies that have examined test‐anxiety interventions with elementary and secondary school students. However, techniques including biofeedback, behavior therapy, cognitive behavioral therapy, priming competency, and mixed approaches have demonstrated promising results. Suggestions are made for school psychologists for the delivery of evidenced‐based test anxiety interventions.     

CONTACT QUALITY AND ATTITUDES TOWARD THE ELDERLY

The contact hypothesis (Allport, 1954) states that cooperative contact with individual members of an out-group can lead to a general more positive attitude toward the out-group as a whole. The research reported in this article investigated the validity of the contact hypothesis within the context of interage interactions. Specifically, the study examined the relationship between young adults' contact with older adults and their attitudes toward the elderly in general. Previous research has emphasized that various factors related to contact quality strongly influence the formation of positive attitudes. In accordance with this assertion, we hypothesized that a single factor, participants' self-reported quality of contact with older individuals, would be related to their attitudes toward the elderly as measured by an implicit attitude scale. Participants' self-reported frequency of contact with older adults was expected to have no effect on their attitudes. College-aged participants were given a single questionnaire that assessed (a) the frequency and quality of their contact with elderly men and women and (b) their implicit attitudes toward the elderly. The results confirmed that self-reported favorable quality, but not frequency, of contact was significantly related to more positive attitudes toward the elderly.     

Course Revision in Introductory STEM Courses: An Exploratory Study at an HBCU Community College

ABSTRACT

This paper presents the results of an exploratory study of a professional development-based effort at one of the nation’s 14 federally designated Historically Black Colleges and Universities community colleges. Course revisions included introductory courses in its Natural Sciences department. The goal was to improve students’ critical-thinking and reading skills in science through faculty professional development opportunities, to improve success across all science, technology, engineering, and mathematics (STEM) curricula. This study examines faculty-selected professional development efforts combined with time release for course revision, and how it impacted students’ attitudes toward science and students’ critical-thinking skills. Six of the department’s 11 full-time faculty instructing introductory science courses received training in WestEd’s Reading Apprenticeship program and on critical-thinking skills. These faculty then revised their courses as they chose based on techniques learned during their training. A comprehensive assessment that included extensive course videos, pre- and post-tests of students’ attitudes toward science the Critical Thinking Assessment Test, and focused interviews with faculty were conducted. Despite major cuts in state support, turnover of key administrators, and other challenges, improvements in student attitudes toward STEM topics and critical-thinking skills were documented as faculty expanded their teaching tool-kits.