Designing effective interventions for children at‐risk for antisocial behavior: An integrated model of components necessary for making valid inferences

Children demonstrating antisocial behavior patterns are at‐risk for a host of negative outcomes including school failure, peer and teacher rejection, academic difficulties, and future delinquency. These children are undoubtedly in need of effective and appropriate interventions to address problem areas in both behavioral and academic domains. To ensure that academic and sociobehavioral interventions will be more successful, three main components: (a) social validity, (b) treatment integrity, and (c) generalization and maintenance must be addressed when designing the interventions. The purpose of this article is to (a) describe the pertinent characteristics (e.g., definition, application, and assessment issues) of each of these components as they relate to school‐based interventions, and (b) introduce an integrated model that illustrates the interrelatedness of these essential intervention components. © 2001 John Wiley & Sons, Inc.     

Novel on-demand droplet generation for selective fluid sample extraction

A novel microfluidic device enabling selective generation of droplets and encapsulation of targets is presented. Unlike conventional methods, the presented mechanism generates droplets with unique selectivity by utilizing a K-junction design. The K-junction is a modified version of the classic T-junction with an added leg that serves as the exit channel for waste. The dispersed phase fluid enters from one diagonal of the K and exits the other diagonal while the continuous phase travels in the straight leg of the K. The intersection forms an interface that allows the dispersed phase to be controllably injected through actuation of an elastomer membrane located above the inlet channel near the interface. We have characterized two critical components in controlling the droplet size-membrane actuation pressure and timing as well as identified the region of fluid in which the droplet will be formed. This scheme will have applications in fluid sampling processes and selective encapsulation of materials. Selective encapsulation of a single cell from the dispersed phase fluid is demonstrated as an example of functionality of this design.     

Meaningful reading gains by adult literacy learners

To obtain a fuller picture of the efficacy of reading instruction programs for adult literacy learners, gains by individual students were examined in a sample (n = 148) in which weak to moderate gains at the group level had been obtained in response to tutoring interventions that focused on strengthening basic decoding and fluency skills of low literate adults (Sabatini, Shore, Holtzman, & Scarborough, 2011). Learners were randomly assigned to receive one of three tutoring programs for an average of 44 h of instruction. We used within-individual gains replicated over tests (WIGROT) as the method for identifying gainers, who were defined as students whose reading levels increased from pretest to posttest by a half year or more on at least two of four measured aspects of reading proficiency. The 46 % of the sample who met the criterion had higher pretest scores than non-gainers on measures of reading (d = .42, p < .01) and phonological awareness (d = .47, p < .01), and included fewer adults with a history of special education (43 vs. 61 %, phi = .19, p < .05), regardless of which instructional condition had been received. The findings suggest that basic skills instruction can lead to a meaningful degree of benefit for many adult learners who persist in reading programs for several months. Supplementing group level results with analyses of individual growth, such as WIGROT, appears to be useful in evaluating the efficacy of literacy interventions.     

Assistant/deputy principals: what are their perceptions of their role?

The roles and aspirations of Assistant/Deputy Principals (AP/DPs) have received attention for a number of decades. In contrast to much of the reported research that either highlights the administrative and management tasks or foregrounds principal succession, we explore levels of satisfaction that play into DP/APs’ interpretations of the realities of their professional experiences during everyday work. Job choice theory provided us with the theoretical resources for the exploration. Our study found that half of all participants perceived their job as a legitimate terminal career. They expressed immense satisfaction in the role, perceived the role as offering a sufficiently high level of challenge without the demands of ultimate leadership responsibility and identified interpersonal relationships, particularly those within the senior leadership team, as the most significant dimension in the role. However, the study has also highlighted that without the support of induction programmes, mentoring support and in-depth leadership training, for many AP/DPs ‘on the job’ training is the only means of learning available to support their professional development in the AP/DP role.     

Rethinking the use of video in teacher education: A holistic approach

Video case studies are commonly used in teacher training programmes, usually to develop one specific area of competence. The need for an integrative model that meets diverse learning objectives and competences led to a study on how to effectively use videos to guide student-teachers towards professional development. The analysis of case studies helped develop a four-pronged holistic proposal that places student-teachers in the role of both teacher and learner allowing the co-construction of teaching knowledge and the acquisition of digital competences and media literacy. This article outlines the pedagogical scheme and provides qualified evidence that supports arguments for its basis.