Communication‐elicited arousal in public speaking,small group and dyadic contexts: Comparisons of change in heart rate

The study examined the effect of situational demands on arousal in public speaking, small group, and dyadic contexts. Heart rate level of nine university students varied significantly according to the demands of the context. The nature of the context was also reflected in subjects’ heart rate variation. The advantages of expanding the physiological communication research in various communication contexts were discussed.     

Finnish Cooperating Physics Teachers’ Conceptions of Physics Teachers’ Teacher Knowledge

This article examines Finnish cooperating physics teachers’ conceptions of teacher knowledge in physics. Six experienced teachers were interviewed. The data was analyzed to form categories concerning the basis of teacher knowledge, and the tradition of German Didaktik and Shulman’s theory of teacher knowledge were used in order to understand the results. The results show that the teachers strongly emphasize knowledge related to day-to-day teaching practice. In German Didaktik, this means knowledge of the best instructional methods, while in Shulman’s categorization it belongs to the category of representations, strategies, and methods. It was also found that the teachers appear to lack some of the essential key ideas of modern physics teacher education, such as a holistic view of instructional approaches.     

Age and gender specific sexual behaviors in children

OBJECTIVE: The purpose of the present research was to explore the sexual behaviors of 2- to 7-year-old children through reports of day-care personnel. An overall aim of this exploratory study was to provide information about the frequencies of child sexual behaviors. Also, the aim was to explore any age and gender differences. METHOD: A representative sample of 364 Finnish children not screened for developmental delay, sexual abuse history or psychiatric problems (181 girls and 183 boys) in 190 day-care centers were studied using the "Day-Care Sexuality Questionnaire" (DCSQ), with 244 sexual and other behavior items. RESULTS: Age influenced more the extent of the 244 sexual behaviors of boys than of girls. In sexual behaviors increasing with age, girls showed behaviors with a more social character, whereas boys showed more explorative and information-seeking behaviors. Girls had a higher frequency of domestic and gender role exploring behaviors, whereas the boys tended to engage in explorative acting and information-seeking behaviors. CONCLUSIONS: The results suggest that child sexual behavior reported by day-care personnel may provide useful information about the development of children's sexuality. Implications for sexual abuse investigations were discussed.     

DROP‐OUT AS A MANIFESTATION OF REPRODUCTION DYNAMICS IN HIGHER EDUCATION

The link between drop‐out rates and the indicators of the socio‐cultural background of undergraduates is analyzed. The conceptualization of the drop‐out problem is based on the theory of cultural reproduction. The tension inherent in this Bourdieuan concept is linked to the opposition between different student cultures and the one‐dimensional, largely hidden, cultural expectations of higher education institutions. One can argue that students who have the most favourable sociocultural backgrounds obviously adapt themselves better to the quite elitist culture of the academic world. The likelihood of this kind of existence of cultural screening is, however, related to the hierarchical status structure of the given academic field. Presumably, the disciplinary culture of top‐units, that corresponds to the culture of the dominant classes, hinders the efforts of common undergraduates to complete their studies. The empirical findings of this study indicate that persons who withdraw from higher education without having been awarded a diploma come from a lower social class background slightly more frequently than do those who do not withdraw, and, surprisingly, are males living in urban and more educated communities. Such unequally biased post‐selection is also more common for the middle and upper than for the lowest‐ranked fields of the academic hierarchy. Generally speaking, differences between social classes, so far as this phenomenon is concerned, are quite small, but may become more pronounced.     

Subtypes of mathematical learning disability and their antecedents: A cognitive diagnostic approach

Using cognitive diagnostic modeling (CDM), this study identified subtypes of mathematics learning disability (MLD) based on children's numerical skills and examined the language and spatial precursors of these subtypes. Participants were 99 MLD children and 420 low achievers identified from 1839 Finnish children (966 boys) who were followed from preschool (age 6) to fourth grade (2007–2011). Five subtypes were identified: the arithmetic fluency deficit only subtype, the counting deficit subtype, the pervasive deficit subtype, the symbolic deficit subtype, and the counting and concept deficit subtype. Different subtypes depended on different constellations of language and spatial deficits. Findings highlight the effectiveness of CDM in identifying MLD subtypes and underscore the importance of understanding the specific deficits and antecedents of the subtypes.     

Probing Pre- and In-service Physics Teachers’ Knowledge Using the Double-Slit Thought Experiment

This study describes the use of the double-slit thought experiment as a diagnostic tool for probing physics teachers’ understanding. A total of 9 pre-service teachers and 18 in-service teachers with a variety of different experience in modern physics teaching at the upper secondary level responded in a paper-and-pencil test and three of these teachers were interviewed. The results showed that the physics teachers’ thought experiments with classical particles, light, and electrons were often partial. Many teachers also suffered a lack of the basic ideas and principles of physics, which probably hindered thought experimenting. In particular, understanding the ontological nature of classical particles, light and electrons seemed to be essential in performing the double-slit experiment in an appropriate way. However, the in-service physics teachers who had teaching experience in modern physics were more prepared for the double-slit thought experiment than the pre-service teachers. The results suggest that both thought experiments and the double-slit experiment should be given more weight in physics teacher education, even if experience in modern physics teaching at upper secondary school seems to some extent to develop teachers’ abilities.     

Open Guided Inquiry Laboratory in Physics Teacher Education

This study has investigated the use of an open guided inquiry laboratory course in which a group of pre-service teachers planned and implemented practical work for school purposes. A total of 32 pre-service teachers (physics, mathematics, and chemistry majors) participated in the study. Each participant wrote a reflective essay after completing the course, and three pre-service teachers were interviewed four times during the course. The results show that the use of an open guided inquiry environment provides support for pre-service teachers to discover the limits of their understanding of subject matter knowledge, allowing them to construct knowledge in a different kind of environment from any they had possessed previously, and helping them to understand the possibilities of practical work in teaching. In the course of developing their competence in these aspects, pre-service teachers also gain an understanding of various aspects of teachers’ knowledge.