The ARIADNE Project (Part 2): Knowledge Pools for Computer-based and Telematics-supported Classical,Open and Distance Education

This paper presents the tools and methodologies underlying the ARIADNE framework for enabling open and distance education and for enhancing more conventional training schemes. The ARIADNE concept relies on a distributed knowledge pool system that stores pedagogically indexed educational resources, as well as on a set of tools and methodologies for authoring curricula. The basic approach is one of share and reuse. Specialized authoring tools are under development for the production of simulations, multiple-choice questionnaires and auto-evaluation exercises. Segmentation tools for video and text-based material, with integrated facilities for hypertext generation, are also under development. The distributed knowledge pool system consists of one central knowledge pool, and a number of local knowledge pools. Corporate training systems can also be built around private knowledge pools. Before pedagogical documents can be inserted into the knowledge pool system, their pedagogical and other characteristics must be described. A pedagogical header generator tool assists in this task. Pedagogical engineers can define the spatio-temporal, socio-pedagogic process that we call a curriculum, and choose the active and expositive documents that embody it, by using a curriculum editor. Finally, students consult or work with the documents of the curriculum they subscribed to, through a personalized view provided by the ARIADNE learner interface.     

Social learning and social transmission of foraging information in Norway rats (Rattus norvegicus)

Adult male Norway rats were tested in a first experiment to see whether foraging efficiency could be improved by social learning. Observers were placed in one of four conditions in which they were paired with demonstrators that either had or had not been previously trained to dig for buried carrot pieces, and in which the demonstrators either did or did not have carrot buried in the experimental enclosure. Observers in the group with trained demonstrators that did have carrot pieces buried in the experimental area during the observation period subsequently unearthed more buried carrot, did so more rapidly, and were generally more active than were the observers in the other three groups. In a second experiment, chains of transmission were established by allowing each observer to act as a demonstrator for the next naive observer. Enhanced levels of digging behavior were maintained across eight transmission episodes in three transmission groups relative to a no-transmission control group, the performance levels becoming stable after five transmission episodes at a level significantly above that of the control group. The study demonstrates that social learning and transmission mechanisms exist which might result in the diffusion of certain patterns of behavior through populations of Norway rats.     

Identifying the training experiences and needs of bilingual school psychologists

The purpose of this pilot study was to better understand the training experiences of bilingual school psychologists (BSPs) and identify their training needs in the provision of psychological services to English language learner students. The secondary aims of the study were to determine how school psychology programs can better prepare BSPs and incorporate best practices in bilingual competencies into their training models. Six BSPs (Spanish/English‐speakers) participated in the study; findings revealed four themes related to their training experiences: (a) programmatic limitations, (b) assumption that language equals competence, (c) going beyond the classroom, and (d) experiential training. In addition, as a result of their training experiences, the BSPs provided training recommendations in two major areas: (a) trainers and (b) culturally relevant curriculum. Implications for school psychology trainers will be provided.     

Why do students consider dropping out of doctoral degrees? Institutional and personal factors

Despite the increasing popularity of doctoral education, many students do not complete their studies, and very little information is available about them. Understanding why some students consider that they do not want to, or cannot, continue with their studies is essential to reduce dropout rates and to improve the overall quality of doctoral programmes. This study focuses on the motives students give for considering dropping out of their doctoral degree. Participants were 724 social sciences doctoral students from 56 Spanish universities, who responded to a questionnaire containing doctoral degree conditions questions and an open-ended question on motives for dropping out. Results showed that a third of the sample, mainly the youngest, female and part time students, stated that they had intended to drop out. The most frequent motives for considering dropping out were difficulties in achieving a balance between work, personal life and doctoral studies and problems with socialization. Overall, results offer a complex picture that has implications for the design of doctoral programmes, such as the conditions and demands of part-time doctoral studies or the implementation of educational proposals that facilitate students’ academic and personal integration into the scientific community in order to prevent the development of a culture of institutional neglect.     

Learning words through overhearing

Recent research indicates that toddlers can monitor others' conversations, raising the possibility that they can acquire vocabulary in this way. Three studies examined 2-year-olds' (N = 88) ability to learn novel words when overhearing these words used by others. Children aged 2,6 were equally good at learning novel words-both object labels and action verbs-when they were overhearers as when they were directly addressed. For younger 2-year-olds (2,1), this was true for object labels, but the results were less clear for verbs. The findings demonstrate that 2-year-olds can acquire novel words from overheard speech, and highlight the active role played by toddlers in vocabulary acquisition.     

EMPIRICAL SYNTHESIS OF THE EFFECT OF STANDARD ERROR OF MEASUREMENT ON DECISIONS MADE WITHIN BRIEF EXPERIMENTAL ANALYSES OF READING FLUENCY

Intervention researchers often use curriculum‐based measurement of reading fluency (CBM‐R) with a brief experimental analysis (BEA) to identify an effective intervention for individual students. The current study synthesized data from 22 studies that used CBM‐R data within a BEA by computing the standard error of measure (SEM) for the median data point from the baseline and intervention data. The median CBM‐R score from the intervention that the authors of each study identified as most effective fell within the SEM (68% confidence interval) of the baseline data approximately 30% of the time, but the ranges for the two author‐identified most effective interventions overlapped over 75% of the time. Extended analyses were consistent with the BEA results for approximately three‐fourths of the instances after considering the SEM of the baseline and intervention phases. Using matched passages did not improve the overlap of the ranges, but there was less overlap when the study used three data points per condition. Results emphasize the importance of considering SEM of CBM‐R data when comparing interventions within a BEA. Further implications for practice and future research are included.