Typology of Teacher Leadership Programs

Education leaders are perennially seeking new ways to build the capacity of teachers to enhance learning experiences for all students. Teacher leadership, which we define as teachers’ support of the improvement of teaching and learning beyond their own classroom, has long been a source of interest and experimentation (Wenner & Campbell, 2017; York-Barr & Duke, 2004). Teacher leadership recognizes teachers’ instructional expertise as an asset for educational improvement, capitalizes upon teachers’ relationships with their colleagues to support change, and may provide career advancement opportunities to improve job satisfaction and the professionalization of teaching. For these and other reasons, states, districts, funders and teachers themselves have become increasingly interested in the promise of teacher leadership. In this study, we map the landscape of teacher leadership programs across the U.S. and identify commonalities and distinctions amongst the range of programs. Using a variety of search approaches to capture publicly-available information, we document 285 state, local, university, and foundation-sponsored programs that use a variety of techniques to support teachers as leaders. We then categorize the forms of support, attending to program models, objectives, sponsorship, and audience. We identify three major forms of support provided by teacher leadership programs: (1) preparation of teachers with knowledge and skills that can help them to lead; (2) positioning of teachers in leadership roles to capitalize upon their expertise; and (3) recognition of teachers as leaders through awards and other forms of appreciation or acknowledgement. While some programs focus only on one of these approaches, most employed a combination of these forms of support. Based on this, we define seven types of teacher leadership programs and provide an interactive depiction of this typology, with examples, to illustrate the variation within each of the seven types. While there are undoubtedly programs that escaped our view, as well as homegrown and informal initiatives that we could not document, this systematic search is the broadest scan of the teacher leadership program landscape conducted in the Unites States to date

The Influence of Teacher Leadership Programs on Teacher Leaders, Teachers, Schools, and Districts

Teacher leadership is increasingly recognized as a promising strategy to improve the quality of instruction in U.S. schools. Despite the rising number of teacher leadership programs in the country, there is a paucity of knowledge about the work that teacher leaders (TLs) engage in, how educators experience teacher leadership and the impacts of these efforts on teacher leaders themselves and on districts, schools, teachers, and students. In response, the Nellie Mae Education Foundation (NMEF) supported the Consortium for Policy Research in Education (CPRE) to investigate educators’ experiences with teacher leadership and describe the impacts of this improvement strategy

The Influence of Teacher Leadership Programs on Teacher Leaders, Teachers, Schools, and Districts

Teacher leadership is increasingly recognized as a promising strategy to improve the quality of instruction in U.S. schools. Despite the rising number of teacher leadership programs in the country, there is a paucity of knowledge about the work that teacher leaders (TLs) engage in, how educators experience teacher leadership and the impacts of these efforts on teacher leaders themselves and on districts, schools, teachers, and students. In response, the Nellie Mae Education Foundation (NMEF) supported the Consortium for Policy Research in Education (CPRE) to investigate educators’ experiences with teacher leadership and describe the impacts of this improvement strategy

Siblings, friends, course-mates, club-mates: How adolescent health behavior homophily varies by race, class, gender, and health status

Many unhealthy behaviors develop during adolescence, and these behaviors can have fundamental consequences for health and mortality in adulthood. Social network structure and the degree of homophily in a network affect how health behaviors and innovations are spread. However, the degree of health behavior homophily across different social ties and within subpopulations is unknown. This paper addresses this gap in the literature by using a novel regression model to document the degree of homophily across various relationship types and subpopulations for behaviors of interest that are related to health outcomes. These patterns in health behavior homophily have implications for which behaviors and ties should be the subjects of future research and for predicting how homophily may shape health programs focused on specific subpopulations (gender, race, class, health status) or a specific social context (families, peer groups, classrooms, or school activities)

HIV Latency-Reversing Agents Have Diverse Effects on Natural Killer Cell Function

In an effort to clear persistent HIV infection and achieve a durable therapy-free remission of HIV disease, extensive pre-clinical studies and early pilot clinical trials are underway to develop and test agents that can reverse latent HIV infection and present viral antigen to the immune system for clearance. It is, therefore, critical to understand the impact of latency-reversing agents (LRAs) on the function of immune effectors needed to clear infected cells. We assessed the impact of LRAs on the function of natural killer (NK) cells, the main effector cells of the innate immune system. We studied the effects of three histone deacetylase inhibitors [SAHA or vorinostat (VOR), romidepsin, and panobinostat (PNB)] and two protein kinase C agonists [prostratin (PROST) and ingenol] on the antiviral activity, cytotoxicity, cytokine secretion, phenotype, and viability of primary NK cells. We found that ex vivo exposure to VOR had minimal impact on all parameters assessed, while PNB caused a decrease in NK cell viability, antiviral activity, and cytotoxicity. PROST caused non-specific NK cell activation and, interestingly, improved antiviral activity. Overall, we found that LRAs can alter the function and fate of NK cells, and these effects must be carefully considered as strategies are developed to clear persistent HIV infection

Absence of Acanthocytosis in Huntington’s Disease-like 2: A Prospective Comparison with Huntington’s Disease

Background: Huntington’s Disease-like 2 (HDL2) is classified as a neuroacanthocytosis; however, this remains unverified. We aim to determine if acanthocytes are present in HDL2 and whether acanthocytes can differentiate HDL2 from Huntington’s disease (HD). Methods: We prospectively compared 13 HD and 12 HDL2 cases against 21 unaffected controls in Johannesburg. Blood smears were prepared using international standards and reviewed by at least two blinded reviewers. An acanthocytosis rate of greater than 1.2% in the dry smear or greater than 3.7% in the wet smear was designated a priori as the threshold for clinical significance based on previously established standards. Flow cytometry was performed on all but four of the cases. Red cell membrane protein analysis was performed on all participants. Results: There were 12 HDL2, 13 HD, and 21 controls enrolled. None of the HD or HDL2 participants had defined acanthocytosis or other morphological abnormalities. None of the HD or HDL2 cases had evidence of an abnormal band 3. Discussion: Acanthocytosis was not identified in either HDL2 or HD in our patient population. Our results, based on the first prospective study of acanthocytes in HDL2 or HD, suggest that screening for acanthocytes will not help establish the diagnosis of HD or HDL2, nor differentiate between the two disorders and raises the question if HDL2 should be placed within the neuroacanthocytosis syndromes

PEDSnet: a National Pediatric Learning Health System

A learning health system (LHS) integrates research done in routine care settings, structured data capture during every encounter, and quality improvement processes to rapidly implement advances in new knowledge, all with active and meaningful patient participation. While disease-specific pediatric LHSs have shown tremendous impact on improved clinical outcomes, a national digital architecture to rapidly implement LHSs across multiple pediatric conditions does not exist. PEDSnet is a clinical data research network that provides the infrastructure to support a national pediatric LHS. A consortium consisting of PEDSnet, which includes eight academic medical centers, two existing disease-specific pediatric networks, and two national data partners form the initial partners in the National Pediatric Learning Health System (NPLHS). PEDSnet is implementing a flexible dual data architecture that incorporates two widely used data models and national terminology standards to support multi-institutional data integration, cohort discovery, and advanced analytics that enable rapid learning

MRI-targeted or standard biopsy for prostate-cancer diagnosis

Background Multiparametric magnetic resonance imaging (MRI), with or without targeted biopsy, is an alternative to standard transrectal ultrasonography-guided biopsy for prostate-cancer detection in men with a raised prostate-specific antigen level who have not undergone biopsy. However, comparative evidence is limited. Methods In a multicenter, randomized, noninferiority trial, we assigned men with a clinical suspicion of prostate cancer who had not undergone biopsy previously to undergo MRI, with or without targeted biopsy, or standard transrectal ultrasonography-guided biopsy. Men in the MRI-targeted biopsy group underwent a targeted biopsy (without standard biopsy cores) if the MRI was suggestive of prostate cancer; men whose MRI results were not suggestive of prostate cancer were not offered biopsy. Standard biopsy was a 10-to-12-core, transrectal ultrasonography-guided biopsy. The primary outcome was the proportion of men who received a diagnosis of clinically significant cancer. Secondary outcomes included the proportion of men who received a diagnosis of clinically insignificant cancer. Results A total of 500 men underwent randomization. In the MRI-targeted biopsy group, 71 of 252 men (28%) had MRI results that were not suggestive of prostate cancer, so they did not undergo biopsy. Clinically significant cancer was detected in 95 men (38%) in the MRI-targeted biopsy group, as compared with 64 of 248 (26%) in the standard-biopsy group (adjusted difference, 12 percentage points; 95% confidence interval [CI], 4 to 20; P=0.005). MRI, with or without targeted biopsy, was noninferior to standard biopsy, and the 95% confidence interval indicated the superiority of this strategy over standard biopsy. Fewer men in the MRI-targeted biopsy group than in the standard-biopsy group received a diagnosis of clinically insignificant cancer (adjusted difference, -13 percentage points; 95% CI, -19 to -7; P<0.001). Conclusions The use of risk assessment with MRI before biopsy and MRI-targeted biopsy was superior to standard transrectal ultrasonography-guided biopsy in men at clinical risk for prostate cancer who had not undergone biopsy previously. (Funded by the National Institute for Health Research and the European Association of Urology Research Foundation; PRECISION ClinicalTrials.gov number, NCT02380027 .)