The Pictorial Scale of Perceived Competence and Social Acceptance: Does It Work with Low-Income Urban Children?

The present study represents a twofold investigation wherein ( a ) the construct validity of the Pictorial Scale of Perceived Competence and Social Acceptance for Young Children (PSPCSA) and ( b ) the developmental appropriateness of the PSPCSA were empirically examined for urban Head Start children. Data were collected from a sample of 476 African-American children (48–64 months) representing children enrolled in a large metropolitan Head Start program. In the first study, neither replication of the test author's statistical procedures nor a series of exploratory factor analyses produced psychologically meaningful constructs. A second study tested the assumption that the PSPCSA administration format is developmentally appropriate for preschool children. Results from this study did not support the assumption that the PSPCSA is developmentally appropriate for preschool children. Implications for establishing valid assessment methods for urban Head Start children were discussed.     

Motivated by Meaning: Testing the Effect of Knowledge‐Infused Rewards on Preschoolers' Persistence

Research and theory suggest that young children are highly attuned to causality. This study explores whether this drive can motivate task engagement. Fifty‐six 3‐ and 4‐year‐olds completed a motor task as many times as desired, viewing a picture of a novel item upon each completion. Forty‐two randomly assigned children then received either: (a) causally rich information regarding the item, (b) causally weak information regarding the item, or (c) a tangible reward. The remaining 14 children participated in a baseline condition featuring no rewards. Preschoolers completed more trials when rewarded with causally rich than causally weak information, or when given no reward. Children also trended toward lengthier persistence in the causally rich than the tangible reward condition. Implications for theory and educational practice are discussed.     

Effects of feedback on collaborative writing in an online learning environment

The need for supporting student writing has received much attention in writing research. One specific type of support is feedback—including peer feedback—on the writing process. Despite the wealth of literature on both feedback and academic writing, there is little empirical evidence on what type of feedback best promotes writing in online environments. This article reports on research that tries to determine what type of feedback best improves the quality of collaborative writing and what the effects of feedback are on student learning in an environment based on asynchronous written communication. The results reveal that concerning the type of feedback, epistemic feedback or epistemic and suggestive feedback best improve the quality of collaborative writing performance. The nature of the feedback-giver (whether teacher feedback or teacher and peer) makes a difference to the final text only when the feedback is epistemic, or epistemic and suggestive.     

Rapid production of protein-loaded biodegradable microparticles using surface acoustic waves

We present a straightforward and rapid surface acoustic wave (SAW) atomization-based technique for encapsulating proteins into 10 μm order particles composed of a biodegradable polymeric excipient, using bovine serum albumin (BSA) as an exemplar. Scans obtained from confocal microscopy provide qualitative proof of encapsulation and show the fluorescent conjugated protein to be distributed in a relatively uniform manner within the polymer shell. An ELISA assay of the collected particles demonstrates that the BSA survives the atomization, particle formation, and collection process with a yield of approximately 55%. The SAW atomization universally gave particles with a textured morphology, and increasing the frequency and polymer concentration generally gave smaller particles (to 3 μm average) with reduced porosity.     

Professional and Personal Competency Development in Near-peer Tutors of Gross Anatomy: A Longitudinal Mixed-methods Study

There are many benefits to peer and near-peer tutoring. The current literature suggests that near-peer teaching within the domain of gross anatomy may lead to the development of numerous competencies for burgeoning medical professionals. The aim of this study was a quantitative and qualitative approach to explore which professional and personal competencies anatomy tutors developed as a result of their teaching activities in a gross anatomy course at a medical school in Germany. For a period of 18 months, 24 peer tutors were followed and queried multiple times via questionnaire and semi-structured interviews. It was found that most of the skills tutors developed or strengthened over one semester matched most of the core competencies described in various official competency frameworks used for physician education. In particular, tutors thought that tutoring gross anatomy had improved their knowledge of professional behavior as well as their communication skills. They also felt that they had learned to take on more responsibility and to use available resources more effectively. Overall, tutoring gross anatomy was perceived as very challenging, but also very rewarding, mainly because it provided the opportunity to develop and strengthen important skills such as self-confidence, self-awareness, positive thinking, self-insight, and stress management. Ultimately, these are all factors that contribute to resilience, an important attribute for physicians.     

You Gotta Represent¡ Ethnic Identity Development among Hispanic Adolescents

Hispanic students' awareness of cultural, linguistic, and sociopolitical issues are influenced by their experiences in schools and affect their sense of identity. An examination of student discourse between bilingual gifted and bilingual general education students in an urban middle school is presented, with particular attention given to how participating bilingual students relate to each other, peers (in general and gifted education), teachers, administrators, families, and communities, and how they perceive themselves. A discussion of the core issues that emerged, including students' reawakening to their ethnic identity, differing rationales for using native language, and observed differences in self-perceptions between the gifted and general education bilingual Hispanic students is provided, along with results and implications for future research.