Teacher change beliefs: validating a scale with structural equation modelling

The objectives of the study were to validate a substantiated Teacher Change Beliefs Model (TCBM) and an instrument to identify critical components of teacher change beliefs (TCB) in Malaysian secondary schools. Five different pilot test approaches were applied to ensure the validity and reliability of the instrument. A total of 936 teachers from 47 high-performing secondary schools completed the survey. Structural equation modelling was applied to test the models. Exploratory factor analysis was employed to identify the underlying factors, whereas confirmatory factor analysis was applied to test the measurement models. The analysis yielded a three-factor TCBM: (1) discrepancy, (2) efficacy and (3) principal support. The results demonstrated a good fit of the model: normed χ² = 3.156, Tucker-Lewis Fix Index = .987, Comparative Fix Index = .991 and Root Mean Square Error of Approximation = .048. The results also provided evidence for convergent validity, discriminant validity and construct reliability. The TCBM is an empirically tested model derived in a local Malaysian cultural education setting. It provides direction for practitioners in planning and designing training programmes of change management for school principals in the enhancement of TCB among teachers in schools. Besides, Teacher Change Beliefs Scale is a promising and welcome tool for both practitioners and researchers. With only nine items, it is easy to administer and not time-consuming.     

Study of magnesium,glycosylated hemoglobin and lipid profile in diabetic retinopathy

The present study was undertaken in 100 subjects, 30 diabetics without complication (group I), 40 diabetics with retinopathy (group II) and 30 non diabetic as normal control group (group III). Blood sugar levels, magnesium, cholesterol and triglyceride were analyzed from plasma and serum. The results were correlated with degree of diabetic control from the levels of glycosylated hemoglobin. Serum magnesium levels in group II were found to be significantly lowered than in group I. There was also significant difference in magnesium levels of group I and group III. We found a significant correlation between the glycosylated hemoglobin and magnesium levels in our study. The results also indicate that the patients with diabetic retinopathy showed significant rise in serum cholesterol and triglyceride. Probably hypomagnesemia and increased serum cholesterol and triglyceride levels are responsible for microvascular changes in diabetes leading to retinopathy. The purpose of this study was thus to gather information about the degree of control of diabetes and magnesium status.     

Dialed In: Continuous Response Measures in Televised Political Debates and Their Effect on Viewers

As a result of emerging debate formats and technological advancements over the years, the media started using continuous response measures (CRMs) in the form of on-screen trackers, allowing select audiences to rate candidate performances in political debates in 2004. Given the limited amount of scholarly research that has tackled this issue, this study aims to investigate the effect of CRMs on college students’ voting choices and perceptions of political candidates. This experimental study has found that these trackers did influence the participants’ evaluations of the political candidates shown in the debate regardless of previously stated political affiliation.     

微带贴片天线的简化全波分析

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Looks Like Me,Sounds Like Me! Race,Culture, and Language in the Creation of Digital Media

The technology education movement includes the introduction and application of digital books into science classrooms. These digital books are attractive alternatives to traditional texts because they can be customized for students. This qualitative study examined 35 students as they customized their own digital books. Using a variety of digital photos and videos, each student was asked to drag and drop images into their text. The students were provided with a variety of digital photos and videos to use to customize their books. The images were identical except for the racial cues of the characters. We used content analysis of students' selections and interviews of students (N = 35). We discovered that cues about racial authenticity served as the primary motivation for students selecting particular images. As students were given options, they consistently chose images that reflected their racial, gender, and linguistic identities. The results of this study indicate the need to recognize how racial cues can help students draw deeper connections to digital media if those cues are culturally authentic. This implies that culturally authentic racial cues would spawn deeper engagement for students.     

Standardizing characterization of membrane active peptides with microfluidics

Antimicrobial peptides (AMPs) are emerging as important players in the fight against antibiotic resistance. In parallel, the field of microfluidics has matured and its benefits are being exploited in applications of biomimetics and standardized testing. Membrane models are essential tools extensively utilized in studying the activity and modes of action of AMPs. Here, we describe how the utilization of microfluidic platforms in characterizing membrane active peptides can develop a reliable colorful image that classical techniques have rendered black and white.     

A snapshot of multicultural training in school psychology

With the rapidly increasing racial and ethnic diversity of the school-aged population, school psychologists must be properly trained to engage in culturally competent practice; however, little is known about how school psychology programs prepare their trainees to serve diverse populations. The purpose of this study was to update Rogers et al.'s study on multicultural training by examining the extent to which school psychology programs use multicultural training recommendations noted in the literature. Thirty-eight school psychology program coordinators completed the Multicultural Environmental Inventory-Revised (MEI) to assess their perceptions of their program's multicultural environment. Participants were also asked about their training in multicultural and diversity issues and how their program conducts multicultural training. Findings suggest that programs most frequently used the integration and separate course models for multicultural training along with clinical experiences serving diverse students. In addition, multicultural coursework was associated with higher scores on the MEI Curriculum and MEI Research subscales. With regard to program environment, the percentage of racial and ethnic minoritized (REM) students was positively correlated to the percentage of REM faculty and the number of required multicultural courses. However, programs lacked specific strategies to recruit and retain diverse students. Findings and implications for training programs are discussed.     

Principal change leadership competencies and teacher attitudes toward change: the mediating effects of teacher change beliefs

This study investigates the relationship between Principal Change Leadership Competencies, Teacher Change Beliefs and Teacher Attitudes toward Change. A total of 936 teachers from 47 High Performing Secondary Schools in Malaysia completed the survey. Structural equation modelling was applied to test the models. Firstly, the results showed that Principal Change Leadership Competencies was significantly related to Teacher Change Beliefs and implied that if school principals equipped themselves with sufficient Principal Change Leadership Competencies, Teacher Change Beliefs can certainly be enhanced. Secondly, Teacher Change Beliefs was significantly related to Teacher Attitudes toward Change whereby the stronger the Teacher Change Beliefs, the greater the enhancement of Teacher Attitudes toward Change. Thirdly, Teacher Change Beliefs was indeed a total mediator in the relationship of Principal Change Leadership Competencies and Teacher Attitudes toward Change. Put simply, via Teacher Change Beliefs, the impact of Principal Change Leadership Competencies on Teacher Attitudes toward Change was relatively strong as Teacher Change Beliefs greatly facilitated the influence of Principal Change Leadership Competencies on Teacher Attitudes toward Change. Thus, in-depth enhancing Teacher Change Beliefs is one of the effective ways to increase the likelihood of teachers to embrace change. Fourthly, Principal Change Leadership Competencies was more influential than teachers’ self-influence in enhancing Teacher Attitudes toward Change. Therefore, concerted effort must be given to prioritize the continuous development of principal change leadership in effective change management. The study encourages a fresh look at change leadership development and ultimately alters the traditional approach of school principals in managing change.     

Effect of OCR error correction on Arabic retrieval

Arabic documents that are available only in print continue to be ubiquitous and they can be scanned and subsequently OCR’ed to ease their retrieval. This paper explores the effect of context-based OCR correction on the effectiveness of retrieving Arabic OCR documents using different index terms. Different OCR correction techniques based on language modeling with different correction abilities were tested on real OCR and synthetic OCR degradation. Results show that the reduction of word error rates needs to pass a certain limit to get a noticeable effect on retrieval. If only moderate error reduction is available, then using short character n-gram for retrieval without error correction is not a bad strategy. Word-based correction in conjunction with language modeling had a statistically significant impact on retrieval even for character 3-grams, which are known to be among the best index terms for OCR degraded Arabic text. Further, using a sufficiently large language model for correction can minimize the need for morphologically sensitive error correction.