The relevance of hedonic price indices

We argue that for the case of heterogeneous commodities with infrequent tradings, such as paintings, it is relevant to base a price index on hedonic regressions using all sales and not resales only. To support this conclusion we construct a price index for paintings by Impressionists and their followers and compare the various estimators using bootstrapping techniques.     

Experience from the field: Programming in a joint-use partnership library

ABSTRACT

Librarians of the joint-use North Regional/Broward College (NR/BC) Library had sought opportunities to collaborate. Historically, challenges have arisen in programming for two distinct populations: seniors for the public library and the college library’s students. In recent years, the library successfully capitalized on organizational changes and nationwide attention to media literacy and social justice to create and deliver several well-received collaborations. This article describes the environment in which these initiatives developed and provides tips on collaborations in- and out-side joint-use libraries. This article also addresses the dearth of professional literature on programming advantages in joint-use libraries.     

Changes in tibiofemoral contact forces during running in response to in-field gait retraining

We evaluated the efficacy of an in-field gait retraining programme using mobile biofeedback to reduce cumulative and peak tibiofemoral loads during running. Thirty runners were randomised to either a retraining group or control group. Retrainers were asked to increase their step rate by 7.5% over preferred in response to real-time feedback provided by a wrist mounted running computer for 8 routine in-field runs. An inverse dynamics driven musculoskeletal model estimated total and medial tibiofemoral joint compartment contact forces. Peak and impulse per step total tibiofemoral contact forces were immediately reduced by 7.6% and 10.6%, respectively (P < 0.001). Similarly, medial tibiofemoral compartment peak and impulse per step tibiofemoral contact forces were reduced by 8.2% and 10.6%, respectively (P < 0.001). Interestingly, no changes were found in knee adduction moment measures. Post gait retraining, reductions in medial tibiofemoral compartment peak and impulse per step tibiofemoral contact force were still present (P < 0.01). At the 1-month post-retraining follow-up, these reductions remained (P < 0.05). With these per stance reductions in tibiofemoral contact forces in mind, cumulative tibiofemoral contact forces did not change due to the estimated increase in number of steps to run 1 km.     

International cooperation in educational research

International Review of Education -     

Peer Judgments of Teaching Competence as a Function of Field Independence and Dogmatism,

The theoretical relationships among field independence, dogmatism, and a peer judgment criterion of professional competence were examined. The subjects were master’s level interns in a training program. The data illustrate the reliability of the criterion and indicate that these interns differentiate between professional competence judgments and more interpersonal judgments when making peer choices. Neither dogmatism nor field independence alone predicts the criterion, but the interaction term for the two variables significantly predicts the criterion. It is the field dependent/highly dogmatic person who is chosen less often by his peers, while the field dependent/low dogmatic person is chosen more often.     

The Mother's Magazine: moral media for an emergent domestic pedagogy, 1833–1848

This paper presents a theoretical analysis of selected passages from The Mother's Magazine, one of the first periodicals for women published in the USA. Of particular interest are selections that highlight desirable maternal characteristics and those that described the intended pedagogical experiences within the domestic sphere. The layout, overarching themes and content of specific articles provide a gateway to discern contributors' attempts at moral regulation. The authors facilitated a character education initiative to ensure that both mother and child would be dutiful and thoughtful Christian citizens. There is also a focus to secure the proliferation of industrious, gendered subjects. It could be argued that the periodical marks the transition from a Calvinist to a Lockean conception of childhood. More accurately, the magazine utilises modern methods of childrearing while still adhering to an evangelical ideology that both reinforces traditional power structures and redefines the role of mother for the emerging nuclear family.     

移动学习的案例研究及内容分析——以mGage项目为例

文章首先对移动学习在中小学课堂中的应用、移动学习的形式和信息设计进行了文献综述。在此基础上,又对美国圣地亚哥州立大学教育技术系开展的mGage项目进行了案例分析。研究者设计出一套详细的评价工具,从视觉吸引力、认知过程、资源质量等16个维度评估学生的WebQuest作品。结果显示,参加移动学习的实验组的得分明显高于对照组。统计分析表明,使用移动设备进行学习的实验组,除了在工具使用维度上具有明显优势外,在认知过程维度和资源质量维度的得分也胜过对照组。文章最后对研究进行了反思总结并展望了下一阶段的研究工作,以期为移动学习进入中小学课堂提供有意义的借鉴。     

The impact of student academic achievement on graduate salaries: the case of a leading Russian university

This paper analyses the impact of academic achievement on future salaries by looking into the grade point average (GPA)-earnings relationship for graduates of a leading Russian university. The study is based on pooled cross-sectional graduate survey data for 2014–2015. The issue of how student academic achievement impacts future labour market rewards is analysed through academic, demographic and labour market factors. We found that there is a significant positive impact of GPA on salaries of BA graduates (9–12% wage premium for an additional GPA point) and an insignificant or negative impact for MA programmes graduates. The study depicts that this negative effect can be partially explained by employment sector-specific variables. Among the main factors which positively affect earnings of graduates is work experience. Graduates who combined study and work achieve a 30% wage premium. However, there is no evidence that combining study and work affects student academic achievement, even for those who combined studies with full-time job. Despite the higher GPA of female students, male graduates’ earnings are 18% higher. Gender wage differences can be explained by gender distribution by the sector of employment: the over-representation of women in the low-paid education and science sectors and their under-representation in entrepreneurship and corporate sector.     

Self-regulation as a function of perceived leadership and cohesion in small group online collaborative learning

The present study examined the relationships between perceived leadership, group cohesion, online engagement, self-regulation and learning outcomes. Data included surveys and online discussion logs from 171 students in an undergraduate online course. Through correlation analysis and structural equation modeling, the results revealed unique contributions of task and relationship leadership in small group collaborative learning. Each form of leadership may translate into greater use of self-regulation strategies that align with students’ focus on either the instrumental or interpersonal resources related to academics but may bring about a corresponding lower utilization of other types of self-regulation strategies. Further, results indicate that students’ perceptions of group cohesion provided the most robust and multifaceted positive associations with learning engagement.