Using speech sounds to guide word learning: the case of bilingual infants

Despite the prevalence of bilingualism, language acquisition research has focused on monolingual infants. Monolinguals cannot learn minimally different words (e.g., "bih" and "dih") in a laboratory task until 17 months of age (J. F. Werker, C. T. Fennell, K. M. Corcoran, & C. L. Stager, 2002). This study was extended to 14- to 20-month-old bilingual infants: a heterogeneous sample (English and another language; N = 48) and two homogeneous samples (28 English-Chinese and 25 English-French infants). In all samples, bilinguals did not learn similar-sounding words until 20 months, indicating that they use relevant language sounds (i.e., consonants) to direct word learning developmentally later than monolinguals, possibly due to the increased cognitive load of learning two languages. However, this developmental pattern may be adaptive for bilingual word learning.     

Release from latent inhibition with delayed testing

A conditioned emotional response procedure was used to study the interactive effects of stimulus preexposure and retention interval in rats. In Experiment 1, the subjects were conditioned by presenting a light CS paired with mild footshock as the US. Half of the subjects were given nonreinforced preexposure to the CS, and the others were not. Separate preexposed and nonpreexposed groups were then tested 1,7, or 21 days after conditioning. Suppression of ongoing activity was used to assess the degree of conditioned fear. Latent inhibition was found at the 1-day retention interval; the preexposed subjects displayed less conditioned fear than did the nonpreexposed subjects. In contrast, equally strong conditioned fear was expressed by the preexposed and the nonpreexposed groups tested after the 7- and the 21-day retention intervals. These results indicate a release from latent inhibition similar to that obtained with conditioned taste aversions (Kraemer & Roberts, 1984). The results of Experiment 2 suggest that retention-interval-induced increases in sensitization, pseudoconditioning, or neophobia cannot account for the release from latent inhibition effect obtained in Experiment 1. The implications of these findings for a retrievaloriented view of latent inhibition are discussed.     

Gifted Education and Counselling in Canada

Education in Canada is determined at the provincial level of jurisdiction. Each province and territory has a unique system of legislation and policy, although most provinces view the education of gifted students as a category of service provision under special education. The first section of this paper provides a brief, general overview of key themes that emerge from an analysis of the relevant Education Ministry documents and literature concerning gifted education and counselling within the Canadian context. Where appropriate, the particular province(s) and/or territory(s) associated with the themes is noted. The second section highlights the work of Canadian scholars most relevant to counsellors working with gifted students. A brief review of recommended counselling needs, goals, and practices for the gifted is presented in the conclusion.     

The use of evidence-based instructional strategies in special education settings in secondary schools: Development,implementation and outcomes

The lack of effective training and an inability to maintain fidelity are two major barriers to implementing evidence-based practices in schools. This study examined the level of implementation of evidence-based practices by teachers after they participated in a unique training program aimed at enhancing the use of evidence-based practices. The results indicate that five months posttraining, 62% of the evidence-based strategies had been implemented and these levels were maintained 13-months posttraining. While the level of exposure to students of the evidence-based practices was low, significant longitudinal improvements in reading and levels of inclusion were documented.     

Statistical estimates of learners�� judgments about knowledge in calibration of achievement

In theoretical models of self-regulated learning, calibration is one important component in successful learning. Two issues of calibration are explored. First, Nelson (1987) suggested the G (gamma) coefficient is the most appropriate measure of calibration (judgment accuracy) and rejected signal detection theory’s d′ statistic because data commonly challenge distributional assumptions. We empirically examined this issue, comparing G and d′. Second, we examined whether a learner’s calibration varies across three domains of knowledge: general, word, and mathematics. A sample of 266 university students volunteered to participate in the study. Participants were selected from various undergraduate and graduate courses. Participants first answered demographic items. Then they completed three knowledge tests (general, word, and mathematics) and judged correctness for each answer provided. Order of domains was randomly counterbalanced among participants. Results show that d′ is a valid measure of calibration, that assumptions about underlying distributions can be tested, and that preliminary evidence suggests that d′ may be a superior measure of accuracy compared to G. Finally, calibration varied by domain.     

Directed forgetting in monkeys

Based on several recent demonstrations of a directed forgetting effect in pigeons, three experiments were carried out in an attempt to demonstrate directed forgetting in three squirrel monkeys. During initial training with a delayed matching-to-sample procedure, retention tests were always given for sample stimuli followed by remember cues (R-cues) and were always omitted for sample stimuli followed by forget cues (F-cues). Retention of F-cued items was tested on probe trials after initial training. The first two experiments examined the effects of R- and F-cues on memory for slide-projected pictures, with different pictures used on each trial of a session. In Experiment 1, a complex design was used in which one or two sample pictures were presented on each trial; when two pictures were presented, both could be R-cued or F-cued, or one could be R-cued and the other F-cued. A simpler design was used in Experiment 2, with only single pictures presented as sample stimuli and half the trials within a session R-cued and the other half F-cued. In both of these experiments, no differential retention of R- and F-cued stimuli was found, even at a retention interval as long as 16 sec. In Experiment 3, a series of studies was performed to test for directed forgetting when only two sample stimuli were used repeatedly throughout training and testing. With two pictures as sample stimuli, clear evidence of directed forgetting was found in Experiment 3b. It is suggested that the directed forgetting effect may arise only when a small set of sample stimuli is used.     

Epistemic Perspective and Online Epistemic Processing of Evidence: Developmental and Domain Differences

Relations between epistemic perspective and online epistemic processing of evidence when reading a text were examined. Thirty-seven young adolescents and 24 graduate university students were asked to read and think aloud with two texts, one in the history domain and the other in the science domain. Participants also completed a prior-knowledge test and an instrument assessing their epistemic perspective. Results showed that participants who exhibited an evaluativist epistemic perspective and high prior knowledge used the epistemic standard of scientific research more than participants who held a nonevaluativist epistemic perspective. Furthermore, an age-related developmental difference was observed, with adults using the epistemic standard of scientific research more than young adolescents. Domain differences were observed in both participants’ epistemic perspectives and online epistemic processing. Participants overall engaged in online epistemic processing of evidence more in the history topic than in the science topic.     

Student-generated questioning activity in second language courses using a customized personal response system: a case study

This case study reports on the implementation of student-generated questioning using a customized personal response system (PRS) by two groups of students in second language (L2) courses at a university in the United States. This study aimed to understand more about instructor and student experience with student-generated questioning for promoting student interaction in the L2 classroom, and sources for investigation included class observation, instructor interview, student survey, and pre/post-test. The results of this study indicated that the classroom interaction could be fostered through student-generated questioning with the support of PRS in L2 courses. In addition, there was a significant difference in students’ achievement between the pre- and post-test. The results are consistent with the findings of previous studies that student-generated questioning fosters collaborative interactions and increases frequency of student engagement. The results also suggest that the adoption of student-generate questioning with a technology support may result in promoting classroom interactions where the students are able to practice the target language through conversation with an instructor and peers.     

Fostering verbal and non-verbal social interactions in a 3D collaborative virtual learning environment: a case study of youth with Autism Spectrum Disorders learning social competence in iSocial

This case study describes the verbal and nonverbal social interaction of 11 youth with Autism Spectrum Disorders in a 3D Collaborative Virtual Learning Environment—iSocial. The youth were developing social competence through participation in a social competence intervention curriculum implemented online so as to provide access to high quality instruction for youth in small and rural communities. The data show the ability and variability of verbal and nonverbal reciprocal social interactions while online. In addition, the results of this case study revealed associations between pedagogical design features of the iSocial 3D CVLE, such as, goal-oriented, narrative embedded, game/role play enriched and peer-supported 3D CVLE activity design and higher frequencies and better quality of reciprocal social interaction. Therefore, these findings have potential to inform future design of 3D social learning spaces.