The inheritance of behavioral wildness in house mice (Mus musculus L.)

Fourteen behavioral measures were ranked according to their ability to differentiate performances of a wild population of mice from three domestic inbred strains. These “wildness” rankings were then analyzed for their ability to predict genetic and Genotype by Environment interactions. Genetic parameters were derived from analysis of three inbred domestic strains and their three hybrid crosses via the diallel technique of genetic analysis. Genotype by Environment interactions were assessed both as mean differences in stock performances resulting from rearing in a laboratory vs naturalistic environment and as differences in environmental variability within stock genotypes. Behavioral characters ranking high on “wildness” failed to demonstrate any unitary pattern of Genotype by Environment interactions. The diallel genetic analysis revealed many examples of additive variation but relatively few examples of dominant variation. An extremely wide range of interactions occurred between genotype and rearing environments, with “wildness” and “developmental homeostasis” concepts both failing to account for all the observed interactions.     

Discriminated avoidance vs classical conditioning: A two-phase model analysis

The acquisition of discriminated avoidance and classically conditioned leg flexions in dogs and of discriminated avoidance leg flexion in cats was examined via a two-phase model of conditioning. Classically conditioned Ss uniformly required two operators during Phase 2, with the limit of the CR operator being greater than that of the CR operator. Not all avoidance-trained Ss required two operators during Phase 2, but those who did also had a higher CR than CR operator limit. The CR operator limit was higher for avoidance than for classical training, while the change rate was greater for classical training. The avoidance behavior of cats paralleled that of the dogs. It was concluded that the data generally conformed to views of Hilgard and Marquis and, more recently, of Bolles, but were contrary to what would be expected from two-factor theory.     

Children with epilepsy in school: Special service usage and assessment practices

Special services usage and related assessment procedures were investigated for 50 students with epilepsy. Fifty‐six percent of students with epilepsy received special education services, with mental retardation designation and self‐contained placement common, especially among individuals with epilepsy plus a coexisting neurological diagnosis. Sixteen percent of participants had an “other health impairment” designation, and several of these were deemed eligible in at least one other special education category. The majority of students who had been evaluated were administered IQ, adaptive behavior, speech/language, and sensorimotor components, whereas few were assessed for executive or memory functions. Little information about antiepileptic drugs, their effects, or the actual manifestation of students' seizures appeared in special services school documents. Additional empirical information regarding services for children with chronic health conditions, such as epilepsy, is necessary to improve school psychologists' practice. © 2006 Wiley Periodicals, Inc. Psychol Schs 43: 169–181, 2006.     

Does Guessing Really Help?

This study examines the claim that attempting, or guessing at, more items yields improved formula scores. Two samples of students who had taken a form of the SA T- Verbal consisting of three parallel half-hour sections, were used to form the following scores on each of the three sections: the number of attempts, a guessing index, the formula score, and (indirectly) an approximation to an ability score. Correlations were obtained separately for the two samples between the attempts, and the guessing index, on one section, the formula score on a second section, and ability as measured by the third section. The partial correlations obtained hovered near zero, suggesting, contrary to conventional opinion, that, on average, attempting more items and guessing are not helpful in yielding higher formula scores, and that, therefore, formula scoring is not generally disadvantageous to the student who is less willing to guess and attempt an item that he or she is not sure of. On closer examination, however, it became clear that the advantages of guessing depend, at least in part, on the ability of the examinee. Although the relationship is generally quite weak, it is apparently the case that more able examinees do tend to profit somewhat from guessing, and would therefore be disadvantaged by their reluctance to guess. On the other hand, less able examinees may lower their scores i f they guess.     

Strategies for Broadening Participation in Advanced Technological Education Programs: Practice and Perceptions

Expanding and diversifying the STEM (science, technology, engineering, and mathematics) workforce is a national priority. The National Science Foundation is investing efforts at post secondary education institutions to engage individuals who have been historically underrepresented in STEM. This paper investigated the use of strategies to broaden participation in STEM by grantees of NSF’s Advanced Technological Education (ATE), who are primarily located at 2-year colleges. The ATE program focuses on developing and improving technician training programs to prepare students for employment in fields that rely on advanced technologiessuch as nanotechnology, photonics, and mechatronics. A survey, conducted annually by the authors of this study, was used to collect data from ATE grantees on their use and perceptions of strategies to broaden participation in STEM. The findings showed that strategies related to motivation and access to enhance recruitment are more widely used then strategies that improve retention. Respondents identified strategies related to providing financial assistance, mentoring, and conducting outreach activities as the most effective for reaching and engaging underrepresented minority students in academic programs. Despite these perceptions, these strategies seem to be underutilized among this group.     

Aquatic-Aerobic Exercise as a Means of Stress Reduction during Pregnancy

The goals of this research were to explore the current literature regarding associations between psychological stress and adverse fetal outcome, associations between aerobic exercise and psychological stress reduction, and associations between aerobic exercise and fetal outcome. The published studies that were located provide evidence of the following: 1) Stress reactivity increases physiologically during pregnancy, 2) pregnant women may experience additional stressors that are usually not experienced in a nonpregnant state, 3) psychological stress in pregnancy is associated with adverse fetal outcome, 4) exercise can be a method of stress reduction, 5) exercise in pregnancy is not associated with adverse fetal outcome, and 6) exercise in pregnancy may provide benefit to the fetus. Data were analyzed from an original study and associations were reported between psychological stress-management activities and participation in aquatic aerobic exercise classes. No reports were available investigating an exercise-induced reduction in psychological stress with fetal outcome.     

Child abuse potential inventory and parenting behavior: Relationships with high-risk correlates

The primary purpose of this research was to examine the construct validity of the Child Abuse Potential Inventory by comparing maltreating and high-risk parents' CAP Inventory abuse scores to their behavior during interactions with their children. A second purpose was to determine the degree to which CAP Inventory scores and parenting behavior were related to several known correlates of abuse, as measured by parent and teacher reports. Participants (n = 41) included abusive and high-risk parents and their children referred to a treatment group. Correlational analyses revealed that CAP Inventory scores and observed parenting style yielded highly related findings, supporting construct validity of the CAP Inventory. However, the CAP Inventory and observed behavior index showed a different pattern of relationships to the risk correlates. Implications for assessment of risk status are discussed and recommendations are provided for continued research.     

Reflections on some contemporary educational slogans

Five fashionable ideas in educational theory are here identified as essentially amounting to slogans in which mere rhetoric supplants rational discussion. First, the back-to-basics movement, trading on a preference for what is essential and useful, blurs the point that there is serious dispute about what actually is essential in education. Second, progressive educators favour discovery learning, but ignore the fact that discoveries can grow out of teaching situations. Third, the notion of values clarification is attractive to all who reject authoritarianism in moral education, but it cannot be enough merely to clarify our moral views. We need to ask how far they are defensible. Fourth, the idea of the hidden curriculum is used to denounce subtle indoctrination, but it is too readily assumed that a hidden curriculum is both inevitable and undesirable. Finally, modern educators have succumbed to the apparent security offered by behavioural objectives without noticing that many educational outcomes, including dispositions, cannot be specified with the precision demanded. Slogans offer simplistic solutions, and serve to curtail serious criticism.

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Zusammenfassung Fünf gängige Begriffe aus der erziehungswissenschaftlichen Theorie, die wesentlich zur Schlagwortbildung beitragen, werden hier identifiziert, bei denen das rein Rhetorische die rationale Diskussion ersetzt. Erstens, die Back to Basics (Zurück zu den Grundfertigkeiten)-Bewegung, die mit Vorliebe übernimmt, was daran wesentlich und nützlich ist, jedoch die Tatsache verwischt, daß eine ernsthafte Auseinandersetzung darüber geführt wird, was eigentlich in der Erziehung wesentlich ist. Zweitens, fortschrittliche Erzieher bevorzugen entdeckendes Lernen, übersehen aber die Tatsache, daß Entdeckungen aus Lehrsituationen heraus erwachsen können. Drittens, der Begriff der Werteabklärung ist für alle verlockend, die das Autoritäre in der Moralerziehung ablehnen, aber es ist nicht ausreichend, nur unsere moralischen Standpunkte zu klären. Es muß die Frage gestellt werden, inwieweit sie zu verteidigen sind. Viertens, der Gedanke des verborgenen Curriculums wird angewandt, um die subtile Indoktrination zu entlarven, aber es wäre voreilig anzunehmen, daß das verborgene Curriculum gleichermaßen unvermeidlich und unerwünscht ist. Schließlich glauben moderne Erzieher durch die sich anbietenden Verhaltensweisen eine Garantie zu haben, ohne zu bemerken, daß vielfach Folgen der Erziehung einschließlich der Charakteranlagen, nicht im einzelnen mit der erforderlichen Präzision angegeben werden können. Schlagworte bieten vereinfachende Lösungen und dienen dazu, ernsthafte Kritik einzuschränken.

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Résumé Les cinq idées en vogue dans le domaine de la théorie éducative sont identifiées ici essentiellement en tant que slogans dans lesquels la rhétorique supplante le débat rationnel. Tout d'abord, le mouvement pour un retour aux éléments d'apprentissage essentiels de base, en tirant profit d'une préférence pour ce qui est fondamental et utile en éducation, cache la controverse sérieuse qui est soulevée lorsqu'il s'agit de savoir ce qui est vraiment essentiel en éducation. Deuxièmement, les éducateurs progressistes favorisent l'apprentissage par la découverte, mais ignorent le fait que ces découvertes peuvent provenir des situations d'apprentissage. Troisièmement, la notion de clarification des valeurs est attirante pour tous ceux qui rejettent l'autoritarisme dans l'éducation morale, mais il est insuffisant de clarifier nos vues morales. Nous devons nous demander jusqu'à quel point elles sont justifiables. Quatrièment, l'idée du curriculum dissimulé est utilisée pour dénoncer une indoctrinement raffinée, mais on affirme trop facilement qu'un curriculum dissimulé est inévitable et peu désirable à la fois. Enfin, les éducateurs modernes ont cédé à l'apparente sécurité offerte par les objectifs relatifs au comportement sans remarquer que de nombreux résultats éducatifs, y compris les dispositions, ne peuvent être spécifiés avec la précision demandée. Les slogans offrent des solutions simplistes et servent à amputer la critique sérieuse.

     

A review of ontology based query expansion

This paper examines the meaning of context in relation to ontology based query expansion and contains a review of query expansion approaches. The various query expansion approaches include relevance feedback, corpus dependent knowledge models and corpus independent knowledge models. Case studies detailing query expansion using domain-specific and domain-independent ontologies are also included. The penultimate section attempts to synthesise the information obtained from the review and provide success factors in using an ontology for query expansion. Finally the area of further research in applying context from an ontology to query expansion within a newswire domain is described.     

Extending WHIRL with background knowledge for improved text classification

Intelligent use of the many diverse forms of data available on the Internet requires new tools for managing and manipulating heterogeneous forms of information. This paper uses WHIRL, an extension of relational databases that can manipulate textual data using statistical similarity measures developed by the information retrieval community. We show that although WHIRL is designed for more general similarity-based reasoning tasks, it is competitive with mature systems designed explicitly for inductive classification. In particular, WHIRL is well suited for combining different sources of knowledge in the classification process. We show on a diverse set of tasks that the use of appropriate sets of unlabeled background knowledge often decreases error rates, particularly if the number of examples or the size of the strings in the training set is small. This is especially useful when labeling text is a labor-intensive job and when there is a large amount of information available about a particular problem on the World Wide Web.