Evidence for a calorically costly negative consummatory contrast effect in rats

For 2 h prior to their daily meal of Purina Chow, rats (which were 14% below ad-lib weight levels) had access to a sucrose solution. For half (Group 16-4), the solution was alternated daily between 18% and 4%; for the other half (Group 4-4), the solution was always 4%. On 18% days, Group 16-4 consumed significantly more calories and gained significantly more weight than did Group 4-4, because of a greater consumption of sucrose calories (Purina intake was similar for the two groups). On 4% days, however, Group 16-4 consumed both significantly fewer sucrose calories and significantly fewer Purina calories than did Group 4-4. These two contrast effects resulted in a 17% shortfall in total caloric intake for Group 16-4 on 4% days. As a consequence, Group 16-4 showed a significant drop in body weight, compared to Group 4-4, on 4% days. A second experiment was carried out to investigate whether the contrast-induced reduction in Purina intake shown by Group 16-4 on 4% days would be eliminated if (1) a 30-min interval separated sucrose ingestion from Purina ingestion, or (2) a 25-min interval plus 5-mmn exposure to 16% sucrose separated ingestion of 4% sucrose from Purina ingestion. Purina intake was still suppressed in Group 16-4 under both conditions.     

The becoming place: A study of educational change in a small college

One of the more astonishing characteristics of educational research is the relative lack of social organizational analyses of higher educational institutions. There is even a greater gap in the literature with regard to thechange process associated with a given university or college. The present study is an examination of one college's attempt to change from a traditional white female finishing college to a larger biracial and coeducational college committed to experimental and innovative educational programs. Two ideal types of educational social organizations are utilized as explicit aids for the specification of the educational change process observed for the Becoming Place during the time period 1969 to 1975. The major findings, which are based on several data sources, can be summarized as follows. (1) Even when a proposed educational change is characterized by ideals of maximum involvement in the decision making process for all members of a college community, resistance to the change can be very substantial. (2) Ironically, little or no involvement by the faculty, students, and alumni in the initial decision to innovate was a major factor for the resistance to educational social change. The research is concluded with a consideration of the findings in terms of possible implications for the future of small colleges.An earlier version of this paper was presented at the annual meeting of the Southern Sociological Society, Knoxville, TN, April 1980.     

The centrality of Aboriginal cultural workshops and experiential learning in a pre-service teacher education course: a regional Victorian University case study

This paper discusses a cross-cultural pedagogical approach, couched in a theory–practice nexus, used at a Victorian regional university to guide non-Indigenous pre-service teachers’ (PSTs) engagement with Aboriginal and Torres Strait Islander perspectives and cultures. We have drawn on qualitative and statistical data, and current issues in Australian and international literature, to explore the relevance and success suggested by data from this cross-cultural pedagogical approach, in particular the notion of teacher ethnicity in racialised spaces. In doing so, we have addressed recent sentiments about a lack of quantitative and qualitative research that explores inclusion of Aboriginal and Torres Strait Islander content and discussions of ways in which tertiary educators construct and influence teachings about Aboriginal and Torres Strait Islander cultures. It is anticipated that this paper will generate further dialogue and research-based evidence on ways in which other tertiary education providers may draw on cross-cultural theories to guide inclusion of Aboriginal and Torres Strait Islander content and perspectives in PST education courses.     

The awkward ages,or what shall we tell the children?

Children's Literature in Education -     

Cognitive Illusions as Hindrances to Learning Complex Environmental Issues

Journal of Science Education and Technology - Teaching and learning complex issues is often confounded by the presence of simplistic mental models that are held by students. These simplistic models...     

Memory, maternal representations, and internalizing symptomatology among abused, neglected, and nonmaltreated children

A depth-of-processing incidental recall task for maternal-referent stimuli was utilized to assess basic memory processes and the affective valence of maternal representations among abused ( N  = 63), neglected ( N  = 33), and nonmaltreated ( N  = 128) school-aged children (ages 8–13.5 years old). Self-reported and observer-rated indices of internalizing symptoms were also assessed. Abused children demonstrated impairments in recall compared to neglected and nonmaltreated children. Although abused, neglected, and nonmaltreated children did not differ in valence of maternal representations, positive and negative maternal schemas related to internalizing symptoms differently among subgroups of maltreated children. Valence of maternal schema was critical in differentiating those with high and low internalizing symptomatology among the neglected children only. Implications for clinical intervention and prevention efforts are underscored.     

Alternative assessment of high school laboratory skills

The purpose of this study was to develop and validate instruments that will assess the laboratory skills of students completing high school science courses. In each of the science areas (biology, chemistry, and physics), tests were developed around six laboratory tasks. Each test used a two-part format with a total time of 80 minutes. Students had to plan an investigation, collect and organize appropriate data, and formulate conclusions based on calculations and graphs. A different test was developed for 12th-grade students not enrolled in a science course. This test consisted of a series of stations where students conducted a short activity that was presented to them. Over 1000 students from 32 Ohio schools formed the sample for this study. Data are presented by skill and by task. In addition, analysis for gender and school effects is included.