Digital devices and teaching the whole student: developing and validating an instrument to measure educators’ attitudes and beliefs     

Vincent Cho  Joshua Littenberg-Tobias 《Educational technology research and development : ETR & D》2016,64(4):643-659

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Novel Approaches to Examine Passage,Student, and Question Effects on Reading Comprehension     

Amanda C. Miller  Sun‐Joo Cho  Jessica R. Toste  James Street  Laurie E. Cutting 《Learning disabilities research & practice》2014,29(1):25-35

Reading comprehension is influenced by sources of variance associated with the reader and the task. To gain insight into the complex interplay of multiple sources of influence, we employed crossed random‐effects item response models. These models allowed us to simultaneously examine the degree to which variables related to the type of passage and student characteristics influenced students’ (n = 94; mean age = 11.97 years) performance on two indicators of reading comprehension: different types of comprehension questions and passage fluency. We found that variables related to word recognition, language, and executive function were influential across various types of passages and comprehension questions and also predicted a reader's passage fluency. Further, an exploratory analysis of two‐way interaction effects was conducted. Results suggest that understanding the relative influence of passage, question, and student variables has implications for identifying struggling readers and designing interventions to address their individual needs.  相似文献   

'You are entrapped in an imaginary well': the formation of subjectivity within compressed development - a feminist critique of modernity and Korean culture     

Cho Han Hae-Joang 《Inter-Asia Cultural Studies》2013,14(1):49-69

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Beyond the FIFA's World Cup: an ethnography of the ‘local’ in South Korea around the 2002 World Cup     

Cho Han Hae‐joang 《Inter-Asia Cultural Studies》2013,14(1):8-25

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Editorial introduction: Bandung/Third Worldism     

Hee‐Yeon Cho  Kuan‐Hsing Chen 《Inter-Asia Cultural Studies》2013,14(4):473-475

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The role of IQ in the use of cognitive strategies to learn information from a map     

Seokhee Cho 《Learning and individual differences》2010,20(6):694-698

The role of IQ in individual differences in real-life problem solving and strategies use was explored. Repeated trials of learning and recall of information from a map were analyzed with high IQ and average IQ Korean students. IQ correlated with the selection and use of strategies in recall. However, the performance and strategic behaviors of low-recall high IQ students and high-recall average IQ students cautions the overgeneralization of the advantage of high IQ in the selection and use of cognitive and metacognitive strategies. The individual's mind set about learning and domain-specific ability needs to be considered as compensatory mechanisms to explain the relationship between IQ and strategies use.  相似文献   

On-chip three-dimensional tumor spheroid formation and pump-less perfusion culture using gravity-driven cell aggregation and balanced droplet dispensing     

Taeyoon Kim  Il Doh  Young-Ho Cho 《Biomicrofluidics》2012,6(3)

This paper presents a spheroid chip in which three-dimensional (3D) tumor spheroids are not only formed by gravity-driven cell aggregation but also cultured at the perfusion rates controlled by balanced droplet dispensing without fluidic pumps. The previous spheroid chips require additional off-chip processes of spheroid formation and extraction as well as bulky components of fluidic pumps. However, the present spheroid chip, where autonomous medium droplet dispensers are integrated on a well array, achieves the on-chip 3D tumor spheroid formation and perfusion culture using simple structure without bulky fluidic pumps. In the experimental study, we demonstrated that the spheroid chip successfully forms 3D tumor spheroids in the wide diameter range of 220 μm–3.2 mm (uniformity > 90%) using H358, H23, and A549 non-small cell lung cancer cells. At the pump-less perfusion culture (Q = 0.1–0.3 μl/min) of spheroids, the number of H358 cells in the spheroid increased up to 50% from the static culture (Q = 0 μl/min) and the viability of the cultured cells also increased about 10%. Therefore, we experimentally verified that the perfusion environment created by the spheroid chip offers a favourable condition to the spheroids with high increase rate and viability. The present chip achieves on-chip 3D tumor spheroid formation and pump-less perfusion culture with simple structure, thereby exhibiting potential for use in integrated in-vivo-like cell culture systems.  相似文献   

Theory development and convergence of human resource fields: Implications for human performance technology     

Yonjoo Cho  Seung Won Yoon 《Performance Improvement Quarterly》2010,23(3):39-56

This study examines major theory developments in human resource (HR) fields and discusses implications for human performance technology (HPT). Differentiated HR fields are converging to improve organizational performance through knowledge‐based innovations. Ruona and Gibson (2004) made a similar observation and analyzed the historical evolution and convergence of three HR‐related fields: human resource management (HRM), human resource development (HRD), and organization development (OD). A field left out in their analysis is HPT. Many learning professionals recognize HPT as a more comprehensive approach to improving organizational performance issues (Molenda & Pershing, 2008; Pershing, 2006). However, little research has been done to advance the theory development of HPT and discuss its relationships within HR fields. This study adds a new perspective to that of Ruona and Gibson's historical analysis of HR fields by examining convergence issues from a theory development perspective.  相似文献   

Mamasang: remember me this way     

Kim Il Rhan  Cho Hyeyoung  Translated by Kim Hyojin 《Inter-Asia Cultural Studies》2013,14(2):348-352

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A Comparison of Label Switching Algorithms in the Context of Growth Mixture Models     

Kristina R. Cassiday  Youngmi Cho  Jeffrey R. Harring 《Educational and psychological measurement》2021,81(4):668

Simulation studies involving mixture models inevitably aggregate parameter estimates and other output across numerous replications. A primary issue that arises in these methodological investigations is label switching. The current study compares several label switching corrections that are commonly used when dealing with mixture models. A growth mixture model is used in this simulation study, and the design crosses three manipulated variables—number of latent classes, latent class probabilities, and class separation, yielding a total of 18 conditions. Within each of these conditions, the accuracy of a priori identifiability constraints, a priori training of the algorithm, and four post hoc algorithms developed by Tueller et al.; Cho; Stephens; and Rodriguez and Walker are tested to determine their classification accuracy. Findings reveal that, of all a priori methods, training of the algorithm leads to the most accurate classification under all conditions. In a case where an a priori algorithm is not selected, Rodriguez and Walker’s algorithm is an excellent choice if interested specifically in aggregating class output without consideration as to whether the classes are accurately ordered. Using any of the post hoc algorithms tested yields improvement over baseline accuracy and is most effective under two-class models when class separation is high. This study found that if the class constraint algorithm was used a priori, it should be combined with a post hoc algorithm for accurate classification.  相似文献