STUDENTS�� EVALUATION OF THE CREDIBILITY OF SCIENTIFIC MODELS THAT REPRESENT NATURAL ENTITIES AND PHENOMENA

The purpose of the current study was to explore learners’ evaluation of the credibility of scientific models that represent natural entities and phenomena. Participants were 845 students in grades 9 – 11 (aged 15 – 17 years) and 108 prospective science teachers in Oman, totaling 953 students. A survey called Epistemologies about the Credibility of Scientific Models was designed to explore participants’ epistemological positions regarding the credibility of scientific models. This instrument was based on a credibility taxonomy proposed by the author. This taxonomy was composed of four epistemological levels: certainty, imaginary, suspicious, and denial; thus, it was called the CISD taxonomy. Findings revealed that natural entities and phenomena were assigned to CISD levels according to their level of abstractness. This level of abstractness is usually constructed by the most frequently used models to represent each natural entity or phenomenon. For instance, entities, which were usually represented by photographs or micrographs, such as meteors and meteorites, blood cells and bacteria, fell at the certainty level. On the other hand, theoretical entities such as electron cloud and photons had a high suspicious–denial combinational level. Some entities, with possible competing concrete–abstract parallel nature of the scientific models that represent them, had both high certainty and suspicious–denial levels. The overall students’ epistemological perceptions across grade levels showed a decrease in the certainty level and an increase in the imaginary level. It might also be plausible to conclude that new, detailed microscopic and more abstract knowledge raised the suspicious and denial levels of some entities. Further research based on qualitative research methodologies is needed to explore these findings.     

Assessment of symptoms in adult survivors of incest: a factor analytic study of the Responses to Childhood Incest Questionnaire

Although research has established the long-term damaging effects of incest, these efforts have suffered from the lack of valid, standardized assessment instruments. The present study reports on the construction and factor validation of the Response to Childhood Incest Questionnaire (RCIQ), a self-report instrument that assesses a range of commonly reported symptoms experienced by adult survivors of incest. A clinical population of 104 adult women who had experienced childhood or adolescent incest completed the RCIQ. A factor analysis of the RCIQ items revealed seven factors which corresponded to hypothesized stress response themes experienced by survivors of traumatic events. These factors include vulnerability and isolation, fear and anxiety, anger and betrayal, reaction to the abuser, sadness and loss, and powerlessness. In addition, four factors corresponded to the diagnostic criteria for post-traumatic stress disorder: intrusive thoughts, avoidance and intrusive emotions, detachment, and emotional control and numbness. The usefulness of the RCIQ as a pre- and post-treatment measure and the need for further research is discussed.     

“No,We Should Do It”: Youth Training Youth in Activist Research Methods

The Urban Review - This article explores a 9-month process of youth research capacity-building, beginning with the training of high school and college aged researchers in qualitative methodologies...     

Cognitive conflict: Its nature and use in the teaching of science

Summary The thrust of this article is that although different theories may share some of the same terminology they may differ considerably in the interpretation which they impose on it and, therefore, on the educational practices which they underwrite. Specifically a brief examination has been made here of the concept of cognitive conflict as it occurs in the theories of Bruner, Case and Piaget-Inhelder, and of the similarities and differences in classroom practices which arise from theoretical commitment.     

Integrated learning systems: An application linking technology with human factors and pedagogical principles

The development of integrated learning systems (ILSs) holds great promise for enhancing the instructional process and for improving student learning. This article describes an application of an ILS that takes into account learning theory research, principles of instructional design, and other factors related to human learning. The application presented utilizes IBM's Advanced Technology Classroom to verify the efficacy of integrated learning systems from both a student-user perspective and the perspective of instructors in a university setting.She has also been the Research Director for the IBM Advanced Technology Classroom at the university.