Training chemistry students to ask research questions

In previous studies, science students have been trained to ask more and better questions through intensive instruction apart from the ongoing academic program. Cognitive strategies (such as questioning) are developed best, however, within the framework of an academic subject. In the current study, questioning skills were taught to high school chemistry students in the context of their laboratory experiments. Since both intellectual development and questioning skills are causally related to problem solving, the effect of intellectual development on the learning of questioning skills also was investigated. The Piagetian model of intellectual development was chosen for its demonstrated effects on many important aspects of science instruction. The number and quality of student research questions was measured by the Science Inquiry Assessment Instrument. The student's level of intellectual development was measured by the Classroom Test of Formal Operations. The twelve-week experimental treatment involved printed lessons which taught students to ask research questions in response to unanticipated observations in their regularly scheduled laboratory experiments. The pretest exaggerated the effect of this treatment. This effect, however, was significant among unpretested students, accounting for 14% of the post-test score variance. The level of intellectual development has no effect on these post-test scores. These important questioning skills can be acquired within the framework of the regularly scheduled classroom activities by high school chemistry students, irrespective of their level of Piagetian intellectual development.     

Extending Cognitive Load Theory to Incorporate Working Memory Resource Depletion: Evidence from the Spacing Effect

Depletion of limited working memory resources may occur following extensive mental effort resulting in decreased performance compared to conditions requiring less extensive mental effort. This “depletion effect” can be incorporated into cognitive load theory that is concerned with using the properties of human cognitive architecture, especially working memory, when designing instruction. Two experiments were carried out on the spacing effect that occurs when learning that is spaced by temporal gaps between learning episodes is superior to identical, massed learning with no gaps between learning episodes. Using primary school students learning mathematics, it was found that students obtained lower scores on a working memory capacity test (Experiments 1 and 2) and higher ratings of cognitive load (Experiment 2) after massed than after spaced practice. The reduction in working memory capacity may be attributed to working memory resource depletion following the relatively prolonged mental effort associated with massed compared to spaced practice. An expansion of cognitive load theory to incorporate working memory resource depletion along with instructional design implications, including the spacing effect, is discussed.     

Training self-regulated learning skills with video modeling examples: Do task-selection skills transfer?

Self-assessment and task-selection skills are crucial in self-regulated learning situations in which students can choose their own tasks. Prior research suggested that training with video modeling examples, in which another person (the model) demonstrates and explains the cyclical process of problem-solving task performance, self-assessment, and task-selection, is effective for improving adolescents’ problem-solving posttest performance after self-regulated learning. In these examples, the models used a specific task-selection algorithm in which perceived mental effort and self-assessed performance scores were combined to determine the complexity and support level of the next task, selected from a task database. In the present study we aimed to replicate prior findings and to investigate whether transfer of task-selection skills would be facilitated even more by a more general, heuristic task-selection training than the task-specific algorithm. Transfer of task-selection skills was assessed by having students select a new task in another domain for a fictitious peer student. Results showed that both heuristic and algorithmic training of self-assessment and task-selection skills improved problem-solving posttest performance after a self-regulated learning phase, as well as transfer of task-selection skills. Heuristic training was not more effective for transfer than algorithmic training. These findings show that example-based self-assessment and task-selection training can be an effective and relatively easy to implement method for improving students’ self-regulated learning outcomes. Importantly, our data suggest that the effect on task-selection skills may transfer beyond the trained tasks, although future research should establish whether this also applies when trained students perform novel tasks themselves.     

Results From a Randomized Controlled Trial of the Motheread/Fatheread Early Literacy Intervention: Evidence of Impact in a Rural Community

Research Findings. A randomized controlled trial evaluated the impact of Motheread/Fatheread Colorado (MFC), an early childhood literacy intervention, on parent reading behaviors and their preschool-aged children’s literacy skills. Parents in the experimental condition participated in MFC; control parents did not. Dependent variables included measures of parental behavior supportive of reading in the home, and parent- and teacher-reported child literacy outcomes. Parents in the intervention group reported spending significantly more time reading with their children and a significantly greater use of interactive reading skills than parents in the control condition. Children in the intervention group scored significantly higher than children in the control group on parent-reported language and reading skills immediately following the intervention. There was no significant difference in immediate post-intervention teacher reports of child literacy skills. However, up to 15-months after program completion, children in the intervention condition had greater gains in teacher-reported language skills than children in the control condition. Results suggest that MFC is a promising intervention for changing the home literacy environment and children’s literacy outcomes. Practice/Policy. Motheread/Fatheread may be a good fit for organizations interested in implementing interventions aimed at improving home literacy for preschool-aged children.     

Sexual behavior problems in sexually abused children: a preliminary typology

OBJECTIVE: The goal was to develop an empirically derived typology for sexually abused children exhibiting sexual behavior problems to assist practitioners in differential assessment, treatment, and case planning. METHOD: Data were systematically gathered from the clinical records of 100 sexually abused children, aged 3 years to 7 years, enrolled in two treatment programs. Twelve indexes were created corresponding to major areas of child and family history, functioning, and treatment response. After initial sorting into subgroups based on the presence or absence of interpersonal sexual behavior problems, further subdivision was based on hierarchical cluster analysis. RESULTS: Five distinctive sexual behavior profiles emerged: (1) developmentally expected; and developmentally problematic (2) interpersonal, unplanned, (3) self-focused, (4) interpersonal, planned (noncoercive), and (5) interpersonal, planned (coercive). Elements of the child's sexual abuse experience, opportunities to learn/practice problematic sexual behavior, and familial variables best differentiated between the types. CONCLUSIONS: The five types differed not only in child sexual behavior but in most areas of child and family functioning, including treatment outcome. The findings offer support for the development of an empirically-based typology for children with sexual behavior problems utilizing a range of variables which go beyond typical classification systems based on offender and victim characteristics.     

Saccharin aversions induced by lithium chloride toxicosis in a backward conditioning paradigm

Seven experimental groups of seven rats each were allowed to consume saccharin solution at different times relative to intubation of lithium chloride solution. Six backward conditioning (BWD) groups were intubed 0.5, 1, 2, 3, 4, and 8 h before saccharin consumption, and a forward conditioning (FWD) group was intubed 0.5 h after saccharin consumption. A no-lithium control group of 14 rats received no intubation. Only the 0.5-h FWD and the 0.5-h BWD groups showed an aversion to saccharin relative to the no-lithium controls. The aversion to saccharin in the 0.5-h FWD group was more pronounced than that in the 0.5-h BWD group. This shows that the aversive effects of lithium toxicosis dissipate far sooner than the aversive effects of X-irradiation.     

Improving Campus Climate to Support Faculty Diversity and Retention: A Pilot Program for New Faculty

We report on a series of pilot programs that we developed and carried out to support the success and satisfaction of new faculty, particularly faculty of color. We hope that others committed to retaining and supporting underrepresented faculty can apply our learning from this pilot project, as a whole or in part.Fred P. Piercy, Ph.D. (University of Florida), M.Ed. (University of South Carolina), B.A. (Wake Forest University) is the Department Head of the Department of Human Development at Virginia Tech. His professional interests include family therapy education, HIV social science research and prevention, and family intervention for adolescent drug abusers. Valerie Giddings, Ph.D., M.S. (Virginia Tech), B.S. (Bennett College) is the Associate Vice Chancellor for Lifelong Learning at Winston-Salem State University. Her professional interests include anthropometry and apparel fit, cultural aesthetics for apparel, and diversity issues in higher education. Katherine R. Allen, Ph.D., M.A. (Syracuse University), B.S. (University of Connecticut) is a Professor in Human Development at Virginia Tech. Her interests include family diversity over the life course, adult sibling ties in transition, and persistence of women and minorities in IT majors. Benjamin Dixon, Ed.D. (University of Massachusetts), M.A.T. (Harvard University), B.Mus.Ed. (Howard University) is the Vice President for Multicultural Affairs at Virginia Tech. His interests include diversity, multicultural education, ethical pluralism, and equity and inclusion issues related to organizational management and development. Peggy S. Meszaros, Ph.D. (University of Maryland), M.S. (University of Kentucky), B.S. (Austin Peay State University) is the William E. Lavery Professor of Human Development and the Director of the Center for Information Technology Impacts on Children, Youth, and Families at Virginia Tech. Her interests include positive youth development, leadership issues, female career transitions, and mother/daughter communication. Karen Joest, Ph.D. (Virginia Tech), M.S. (Chaminade University), B.S. (Indiana State University) is an Assistant Professor of Child and Family Studies at the State University of New York, College at Oneonta. Her interests include adolescents exposed to domestic violence, use of qualitative research, and use of technology and feminist pedagogy     

Salivary biomarker levels and diurnal variation: associations with medications prescribed to control children's problem behavior

This study examined associations between medications prescribed to control children's problem behaviors and levels of, and diurnal variation in, salivary cortisol (C), testosterone (T), and dehydroepiandrosterone (DHEA). Saliva was collected in the morning, midday, and afternoon from 432 children ages 6-13 years. Relative to a no-medication comparison group, children taking (1) antipsychotics had higher DHEA levels and flat C diurnal rhythms, (2) Ritalin or Adderall had flat T diurnal rhythms, (3) Concerta had higher T and DHEA levels, (4) antidepressants had flat DHEA diurnal rhythms, and (5) hypotensives had flat DHEA diurnal rhythms and higher T levels. Medications prescribed to control children's problem behaviors should be monitored in studies of the endocrine correlates and consequences of developmental psychopathology.