Perceptual Mapping Software as a Tool for Facilitating School-Based Consultation

Perceptual mapping is a systematic method for collecting, analyzing, and presenting group perceptions that is potentially useful in consultation. With input and feedback from a consultee group, perceptual mapping allows the consultant to capture the group's collective perceptions and display them as an organized image that may foster meaningful understanding of their shared beliefs and serve as a stimulus for discussion and problem solving. Perceptual mapping can give school-based consultants an additional means to bring ideas “to the table” that consultees can clearly conceptualize as originating with them as opposed to the notions of the consultant. The authors illustrate the potential use of and offer support for perceptual mapping as a tool for consultation in schools.     

Investing in people: The support of farmer learning,creativity and local social networks in the Project Pisciculture Familiale,Zaïre

Abstract

For over fifteen years the U.S. Peace Corps provided technical and administrative support for a widely successful aquaculture development initiative in the (former) Republic of Zaïre. Until internal political tensions led to the dissolution of the effort in the early 1990s, the programme helped thousands of farmers across the country add a new, highly profitable enterprise to their portfolio of productive activities. The successes generated by this effort highlight the powerful role that extension programmes can play when their design and implementation liberates both farmers and field agents from the confines of their traditional roles as the simple ‘receivers’ and ‘purveyors’ of information. By building upon the reinforcing features of sound production principles, human capacity development and supportive local social organization, this programme created ‘windows of opportunity’ for farmers to become increasingly involved in developing innovations, spreading the programme's messages and independently powering a farmer-led promotion of aquaculture development. This example demonstrates that given the tools and opportunity, extension practice that builds farmers' knowledge, engages farmers' creativity and allows for their active involvement in outreach activities is capable of producing results that far exceed and outlast those possible through more traditional approaches.     

Information Quality,Uncertainty, and Quality of Care in Long-Distance Caregiving

Approximately 13% of Americans who provide care for an ailing family member do so from a distance, making long-distance caregiving a relevant health communication topic to study. A self-report online survey examined the quality of information provided by care recipient to distant caregiver, uncertainty about care recipient health, and perceived quality of care from the distant caregivers' perspective. Information quality, uncertainty, and perceived quality of care were significantly related as predicted. How these findings offer new insight into the complex nature of distant caregiving communication is discussed.     

The influence of group size on children's competitive behavior

The present research was designed to test the hypothesis that children would compete more in tetrads than in dyads. Twenty-two pairs of male and 14 pairs of female target children (N = 72) played a competitive game in both tetrads and dyads. Consistent with the hypothesis, male target children competed more in tetrads than in dyads. This hypothesis was not supported for females, however. Analyses of the dynamics of tetrads and dyads further demonstrated that based on a global measure of smiling, the emotional atmosphere was less positive in tetrads than in dyads. The causes and consequences of interaction in different sized social groups are discussed.     

The case for a new tenure policy

Caught between serious concern about their tenure levels and the paucity of feasible policy options, many institutions have reacted by making all new appointments outside the tenure system. The secondary purpose of this paper is to show that this conservative and seemingly safe solution is not without its faults and has, in fact, a very wide spectrum of faults. The primary purpose is to show how a modification of this tenure-system-freeze policy can eliminate most of the deficiencies of the policy and yet sacrifice only a small increment of the advantage. This modification is arrived at using an analytical model of the tenure system, and the theoretical results are demonstrated in the concrete form of a numerical example.     

A progression in first-grade children’s thinking about variable and variable notation in functional relationships

Recent research suggests that children in elementary grades have some facility with variable and variable notation in ways that warrant closer attention. We report here on an empirically developed progression in first-grade children’s thinking about these concepts in functional relationships. Using learning trajectories research as a framework for the study, we developed and implemented an instructional sequence designed to foster children’s understanding of functional relationships. Findings suggest that young children can learn to think in sophisticated ways about variable quantities and variable notation. This challenges assumptions that young children are not “ready” for a study of such concepts and raises the question of whether difficulties adolescents exhibit might be ameliorated by an earlier introduction to these ideas.     

Unmasking the unasked: correcting the record about assessor masking as an explanation for effect size differences

Ainsworth et al.’s paper “Sources of Bias in Outcome Assessment in Randomised Controlled Trials: A Case Study” examines alternative accounts for a large difference in effect size between 2 outcomes in the same intervention evaluation. It argues that the probable explanation relates to masking: Only one outcome measure was administered by those aware of participants’ treatment assignment. This paper shows this conclusion is not substantiated by the evidence: The original paper fails to exclude alternative explanations, and what it takes as positive evidence for the preferred explanation is actually negative. While accepting the importance of masking in randomised controlled trials, this paper concludes that the original question was based on a misconception about effect sizes: Seen correctly as a measure of whole study design, the question of effect size difference between different outcome measures does not need asking.     

Three concepts or one? Students’ understanding of basic limit concepts

In many mathematics curricula, the notion of limit is introduced three times: the limit of a sequence, the limit of a function at a point and the limit of a function at infinity. Despite the use of very similar symbols, few connections between these notions are made explicitly and few papers in the large literature on student understanding of limit connect them. This paper examines the nature of connections made by students exposed to this fragmented curriculum. The study adopted a phenomenographic approach and used card sorting and comparison tasks to expose students to symbols representing these different types of limit. The findings suggest that, while some students treat limit cases as separate, some can draw connections, but often do so in ways which are at odds with the formal mathematics. In particular, while there are occasional, implicit uses of neighbourhood notions, no student in the study appeared to possess a unifying organisational framework for all three basic uses of limit.     

Accuracy in direct behavior rating is minimally impacted by completion latency

Direct behavior ratings (DBRs) have been proposed as an efficient method to assess student behavior in the classroom due to their relative ease of administration compared to alternative methods like systematic direct observation. DBRs are considered low‐inference assessments of behavior because they are designed to be completed immediately following a specified observation period of student behavior; however, in practice it is common for teachers and other respondents to delay completion of a DBR until they are reminded to do so. It is unclear what effect, if any, this latency between observation and DBR completion has on rater accuracy. Thus, the purpose of this study was to examine the effect of completion latency on accuracy in an analogue setting. Two‐hundred forty‐one undergraduate students (83.8% female) with a mean age of 21 participated across eight groups and were asked to complete an electronic DBR immediately after watching a video of student behavior or after a predetermined delay of 5 minutes, 15 minutes, 30 minutes, 1 hour, 2 hours, 4 hours, or 6 hours. A one‐way analysis of variance revealed that there was no statistically significant relationship between completion latency and DBR accuracy, F(7, 233) = .959, p = .46, η² = .028.