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Derek C. Briggs Maria Araceli Ruiz‐Primo Erin Furtak Lorrie Shepard Yue Yin 《Educational Measurement》2012,31(4):13-17
In a recent article published in EM:IP, Kingston and Nash report on the results of a meta‐analysis on the efficacy of formative assessment. They conclude that the average effect of formative assessment on student achievement is about .20 SD units. This would seem to dispel the myth that effects between .40 and .70 can be attributed to formative assessment. They also find that there is considerable variability in effect sizes across studies, and that only the content area in which the treatment is situated explains a significant proportion of study variability. However, there are issues in the meta‐analytic methodology employed by the authors that make their findings somewhat equivocal. This commentary focuses on four methodological concerns about the Kingston and Nash meta‐analysis: (1) the approach taken to select studies for inclusion, (2) the application of study inclusion criteria, (3) the extent to which the effect sizes being combined are biased, and (4) the relationship between effect size magnitude and characteristics of outcome measures. After examining these issues in the context of the Kingston and Nash review, it appears that considerable uncertainty remains about the effect that formative assessment practices have on student achievement. 相似文献
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Derek Rasmussen 《Interchange》2011,42(2):137-155
In this article issues related to policy and education in the Canadian Arctic are critically put to question. The focus is
on the struggle for Inuit education, language issues, and supporting minority rights, with pragmatic solutions proposed to
the problems confronting Nunavut. 相似文献
86.
Social cognitive theory suggests a likely relationship between behavior modeled on increasingly popular reality television (RTV) and user behavior modeled on social networking sites (SNSs). This study surveyed young adults (N = 456) to determine the extent to which RTV consumption explained a range of user behavior in the context of social network sites. Results show a consistent relationship between RTV consumption and the length of time spent on these sites, the size of users' networks, the proportion of friends not actually met face to face, and photo sharing frequency while controlling for age and gender. 相似文献
87.
Derek X. Seward Douglas A. Guiffrida 《International journal for the advancement of counseling》2012,34(4):286-296
This qualitative study investigated the experiences of Students of Color in multicultural counseling courses in relation to classroom participation. Results suggest several complex tensions that Students of Color experience when deciding whether and how much to participate in class. Implications for multicultural training are provided. 相似文献
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In recent years, universities have appointed an increasing number of ‘teaching-only’ or ‘teaching-dominant’ staff. While the balance of reward and recognition between teaching and research has been extensively considered for staff engaged in both, this is the first attempt to look at the situation of staff appointed on teaching–only contracts. Our survey reveals an enthusiastic workforce, which nevertheless feels undervalued by the system. This is an important issue for the development of higher education. 相似文献
89.
Nate Page Derek Griner Timothy B. Smith Aaron P. Jackson Klint Hobbs 《Journal of College Student Psychotherapy》2019,33(3):180-198
A multisite qualitative study investigated the experiences of six group leaders and 10 group members who participated in seven different university counseling center international student support groups. Analyses of interview data using hermeneutic interpretation resulted in nine major themes and 10 subthemes organized into four sections: (a) recruitment and group design, (b) experiences of group members, (c) experiences of group leaders, and (d) additional considerations. 相似文献
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In this paper, we present a microfluidic chip that is capable of measuring electrical conductance through gap junction channels in a 2-dimensional cell sheet. The chip utilizes a tri-stream laminar flow to create a non-conductive sucrose gap between the two conducting solutions so that electrical current can pass across the sucrose gap only through the cells. Using the chip, we tested the effect of a gap junction inhibitor, 2-APB, on the electrical coupling of connexin 43 (Cx43) gap junction channels in NRK-49F cells. We found that 2-APB reversibly blocks the conductivity in a dose-dependent manner. The tri-stream chip further allows us to simultaneously follow the conductance changes and dye diffusion in real time. We show that 2-APB affects both conductance and diffusion, supporting the interpretation that both sets of data reflect the same gap junction activity. The chip provides a generic platform to investigate gap junction properties and to screen drugs that may inhibit or potentiate gap junction transmission. 相似文献