Conditioned taste aversion in Philippine rice rats (R. r. mindanensis): Comparisons among drugs,dosages, modes of administration,and sexes

The effects of select drugs, dosages, and modes of administration upon learned taste aversions were compared among groups of wild-caught male and female Philippine rice rats (R. r. mindanensis). Experiment 1 compared two-choice saccharin aversions for 28 days among groups intubated with copper sulfate, cyclophosphamide, lithium chloride, red squill, sodium chloride (control), or deionized water (control). Main results were that 375 mg/kg lithium chloride produced the greatest sustained aversions, whereas 198 mg/kg cyclophosphamide and 210 mg/kg red squill produced moderate aversions, with males showing more resistance to extinction than females. Experiment 2 compared saccharin aversion among matched groups of male and female rats that received low (36 mg/kg), moderate (105 mg/kg), or high (368 mg/kg) dosages of lithium by gavage, ip injection, or ingestion. Sex differences in rates of extinction were found for the ingestion and injection-dosed rats, but no sex difference was again found for rats dosed by gavage. A significant mode × day interaction indicated that extinction progressed more rapidly for rats dosed by gavage. For all modes of administration, high dosages yielded intense 28-day aversion, moderate dosages produced intermediate 3–5 day aversion, and low dosages caused no aversion.     

Experiential Learning in Social Science Theory: An investigation of the relationship between student enjoyment and learning

This paper provides an analysis of student experiences of an approach to teaching theory that integrates the teaching of theory and data analysis. The argument that supports this approach is that theory is most effectively taught by using empirical data in order to generate and test propositions and hypotheses, thereby emphasising the dialectic relationship between theory and data through experiential learning. Bachelor of Commerce students in two second-year substantive organisational theory subjects were introduced to this method of learning at a large, multi-campus Australian university. In this paper, we present a model that posits a relationship between students' perceptions of their learning, the enjoyment of the experience and expected future outcomes. The results of our evaluation reveal that a majority of students: ’ enjoyed this way of learning; ’ believed that the exercise assisted their learning of substantive theory, computing applications and the nature of survey data; and ’ felt that what they have learned could be applied elsewhere. We argue that this approach presents the potential to improve the way theory is taught by integrating theory, theory testing and theory development; moving away from teaching theory and analysis in discrete subjects; and, introducing iterative experiences in substantive subjects.     

Family Interaction Patterns,Career Planning Attitudes,and Vocational Identity of High School Adolescents

The purpose of the current study was to examine how perceptions of family interaction patterns as defined along three dimensions of family environment (quality of family relationships, family goal-orientations, and degree of organization and control within the family system) predict vocational identity and career planning attitudes among male and female adolescents living at home. One hundred twenty three high school students completed measures of family environment, vocational identity, and career planning attitudes. Analyses revealed that the quality of family relationships (i.e., degree to which family members are encouraged to express feelings and problems) played a small, yet significant role in predicting career planning attitudes of adolescents.     

Addressing children's life changes in the early childhood curriculum

Young children may experience stress from changes in their lives. These changes may be developmental, critical, or catastrophic. Early childhood educators need to establish partnerships with parents to help families cope with all three types of changes. Teachers can facilitate children's emotional expressions, build understanding through the use of dramatic play, provide a stable routine, monitor post-traumatic play, and discuss events that affect individual children, the entire class, or the community. Teachers can also serve as a resource to families by providing books for parents and children, and building a referal file of agencies and helping professionals.     

Errors of inference in structural equation modeling

Although structural equation modeling (SEM) is one of the most comprehensive and flexible approaches to data analysis currently available, it is nonetheless prone to researcher misuse and misconceptions. This article offers a brief overview of the unique capabilities of SEM and discusses common sources of user error in drawing conclusions from these analyses. We make recommendations to guide proper analytical practices and appropriate inferences and provide references for more advanced study. © 2007 Wiley Periodicals, Inc. Psychol Schs 44: 461–470, 2007.     

Recreational activities and motor skills of children in kindergarten

Background: Developmental theorists suggest that physical activity during early childhood promotes fundamental motor skill (FMS) proficiency; and that differences in FMS proficiency are largely related to children's experiences.

Aim: To examine associations between participation in different types of recreation/leisure and FMS proficiency of boys and girls in their first year of school. We hypothesized that there would be positive associations between FMS proficiency and participation in organized sport, physical activities, and active physical recreation; but not for other types of recreation/leisure.

Method: Participants (n?=?74) were kindergarten children (Mage?=?5y11?m; boys?=?55%). Parents completed the diversity dimension of the Children's Assessment of Participation and Enjoyment (CAPE) survey. The CAPE measures children's participation in everyday activities outside of mandated school activities in the past four months in five types of formal and informal activities, specifically: Recreational activities, Physical activities, Social activities, Skill-Based activities, and Self-Improvement activities. Two categories of activities were also reported: Organized Sport and Active Physical Recreation. Locomotor and object control skills were assessed using the Test of Gross Motor Development-2 and static balance was assessed using a stork stand. Sex-based differences in motor skills and participation were examined using chi-squared analyses. Correlation coefficients were used to examine relationships between motor skills and CAPE sub-domains and categories. Linear regression was used to examine whether the type of activity predicted motor skill proficiency and the reverse.

Results: There were no sex-based differences in locomotor skills; whereas boys' object control skill scores were significantly higher than girls, and girls' stork stand scores were higher than boys'. Although there were no sex-based differences in the more active categories of recreational pastimes; girls participated in significantly more formal and informal dance and the prevalence of participation in team sports was significantly higher for boys. For boys, participation in physical activities predicted both locomotor and object control skill scores, organized sport predicted object control skills, and active recreation predicted stork stand times and object control skill scores. These relationships were not evident among the girls.

Conclusions: These findings illustrate that young children participate in a narrower array of physically active recreational pursuits compared with less active pursuits. There were notable sex-based differences in the relationships between participation and motor skill proficiency. For girls, none of the associations between recreational pastimes and motor skill proficiency were significant. This suggests that the motor proficiency of girls, as assessed in this study, is neither a precursor to, nor an outcome of, participation in active recreational pastimes. Contrastingly, the findings for boys support theory that suggests that physical activity is driving the acquisition of particular types of motor skills. Less active recreational activities were not associated with motor skill levels of boys, whereas each of the more active categories of recreational pastimes (active recreation, physical activities, and organized sport) predicted at least one sub-type of motor skill. It also seems clear from our findings that more light needs to be shed on how to optimally portray young girls' motor skill proficiency; as well as the relationships between their participation and motor skills.     

Factors related to the underachievement of university students in Turkey

The study aims to elucidate the characteristics of gifted underachievers at the university level and the reasons for their underachievement. The sample consisted of students from Bogazici University in Istanbul. The School Attitude Assessment Survey‐Revised (SAAS‐R) instrument was administered to 91 underachievers and a comparison group of 74 university students. The instrument employed five subscales: academic self‐perceptions, attitudes toward teachers, attitudes toward school, goal valuation, and motivation/self‐regulation. Findings indicated that the comparison students and the underachieving students differed on all five subscales of the SAAS‐R. In addition, the instrument correctly classified almost 80% of the students in the present sample as either underachievers or comparison students. Among the five subscales, the motivation/self‐regulation subscale was most predictive of underachievement status.