scholarly journals Examining Spillover Effects From Teach For America Corps Members in Miami-Dade County Public Schools

2018 ◽  
Vol 70 (5) ◽  
pp. 453-471 ◽  
Author(s):  
Ben Backes ◽  
Michael Hansen ◽  
Zeyu Xu ◽  
Victoria Brady
Keyword(s):  
Public Schools ◽  
Mathematics Achievement ◽  
Large Scale ◽  
Spillover Effects ◽  
Teach For America ◽  
Dade County ◽  
Large Numbers ◽  
Cluster Strategy ◽  
Student Test ◽  
Over Time

This article examines Teach For America’s (TFA) placement strategy in Miami-Dade County Public Schools, in which large numbers of TFA corps members are placed as clusters into a targeted set of disadvantaged schools, to investigate whether the large-scale infusion of TFA corps members into these schools induced broader improvements across the school. Using 6 years of administrative data from the district, we exploit variation in TFA density over time within schools to measure the extent to which increases in density were associated with improvements in student test scores. We find that many of the schools chosen to participate in the cluster strategy experienced large subsequent gains in mathematics achievement. These gains were driven in part by the direct effect of having larger numbers of classrooms staffed by effective TFA teachers. However, we do not find any evidence that the clustering strategy led to any spillovers on schoolwide performance.

Principal time management skills

2015 ◽  
Vol 53 (6) ◽  
pp. 773-793 ◽  
Author(s):  
Jason A. Grissom ◽  
Susanna Loeb ◽  
Hajime Mitani
Keyword(s):  
Public Schools ◽  
Job Stress ◽  
Time Management ◽  
Large Scale ◽  
School Principals ◽  
Interpersonal Relationship ◽  
Relationship Building ◽  
Dade County ◽  
Management Skills ◽  
Content Type

Purpose – Time demands faced by school principals make principals’ work increasingly difficult. Research outside education suggests that effective time management skills may help principals meet job demands, reduce job stress, and improve their performance. The purpose of this paper is to investigate these hypotheses. Design/methodology/approach – The authors administered a time management inventory to nearly 300 principals in Miami-Dade County Public Schools, the fourth-largest school district in the USA. The authors analyzed scores on the inventory descriptively and used them to predict time-use data collected via in-person observations, a survey-based measure of job stress, and measures of perceived job effectiveness obtained from assistant principals and teachers in the school. Findings – Principals with better time management skills allocate more time in classrooms and to managing instruction in their schools but spend less time on interpersonal relationship-building. Perhaps as a result of this tradeoff, the authors find that associations between principal time management skills and subjective assessments of principal performance are mixed. The authors find strong evidence, however, that time management skills are associated with lower principal job stress. Practical implications – Findings suggest that building principals’ time management capacities may be a worthwhile strategy for increasing time on high-priority tasks and reducing stress. Originality/value – This study is the first to empirically examine time management among school principals and link time management to key principal outcomes using large-scale data.

The Impact of Teach for America on Non-Test Academic Outcomes

2018 ◽  
Vol 13 (2) ◽  
pp. 168-193 ◽  
Author(s):  
Ben Backes ◽  
Michael Hansen
Keyword(s):  
Public Schools ◽  
Academic Outcomes ◽  
Student Outcomes ◽  
Teach For America ◽  
Dade County ◽  
Unexcused Absences ◽  
Quasi Experimental ◽  
Teacher Productivity ◽  
The Impact ◽  
Elementary And Middle School

Recent evidence on teacher productivity suggests that teachers meaningfully influence non-test academic student outcomes that are commonly overlooked by narrowly focusing on test scores. Despite a large number of studies investigating the Teach For America (TFA) effect on math and English achievement, little is known about non-tested academic outcomes. Using administrative data from Miami-Dade County Public Schools, we investigate the relationship between being in a TFA classroom and five non-test student outcomes commonly found in administrative datasets: days absent, days suspended, GPA, classes failed, and grade repetition. We validate our use of non-test student academic outcomes to assess differences in teacher productivity using the quasi-experimental teacher switching methods of Chetty, Friedman, and Rockoff ( 2014 ) and fail to reject the null hypothesis of unbiasedness in most cases in elementary and middle school, although in some cases standard errors are large. We find suggestive evidence that students taught by TFA teachers in elementary and middle schools were less likely to miss school due to unexcused absences and suspensions compared with students taught by non-TFA teachers in the same school, although point estimates are very small. Other outcomes were found to be forecast-unbiased but showed no evidence of a TFA effect.

Computer Analyses in Preventive Health Research

1967 ◽  
Vol 06 (01) ◽  
pp. 8-14 ◽  
Author(s):  
M. F. Collen
Keyword(s):  
Medical Research ◽  
Preventive Medicine ◽  
Health Research ◽  
Large Scale ◽  
Preventive Health ◽  
New Era ◽  
Large Numbers ◽  
Normal Test ◽  
Computer Analyses

The utilization of an automated multitest laboratory as a data acquisition center and of a computer for trie data processing and analysis permits large scale preventive medical research previously not feasible. Normal test values are easily generated for the particular population studied. Long-term epidemiological research on large numbers of persons becomes practical. It is our belief that the advent of automation and computers has introduced a new era of preventive medicine.

scholarly journals Analysis of 220 Years of Floodplain Population Dynamics in the US at Different Spatial Scales

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 141
Author(s):  
Firoza Akhter ◽  
Maurizio Mazzoleni ◽  
Luigia Brandimarte
Keyword(s):  
Population Dynamics ◽  
Large Scale ◽  
Spatial Scales ◽  
National Level ◽  
State Level ◽  
Economic Activities ◽  
Protection Measures ◽  
Management Planning ◽  
The Us ◽  
Over Time

In this study, we explore the long-term trends of floodplain population dynamics at different spatial scales in the contiguous United States (U.S.). We exploit different types of datasets from 1790–2010—i.e., decadal spatial distribution for the population density in the US, global floodplains dataset, large-scale data of flood occurrence and damage, and structural and nonstructural flood protection measures for the US. At the national level, we found that the population initially settled down within the floodplains and then spread across its territory over time. At the state level, we observed that flood damages and national protection measures might have contributed to a learning effect, which in turn, shaped the floodplain population dynamics over time. Finally, at the county level, other socio-economic factors such as local flood insurances, economic activities, and socio-political context may predominantly influence the dynamics. Our study shows that different influencing factors affect floodplain population dynamics at different spatial scales. These facts are crucial for a reliable development and implementation of flood risk management planning.

scholarly journals China’s Investments in Germany and the Impact of the COVID-19 Pandemic

2021 ◽  
Vol 56 (2) ◽  
pp. 113-119
Author(s):  
Xinming Xia ◽  
Wan-Hsin Liu
Keyword(s):  
Large Scale ◽  
Know How ◽  
Advanced Technologies ◽  
The Future ◽  
Potential Impact ◽  
Chinese State ◽  
The Impact ◽  
Gain Access ◽  
Over Time

AbstractThis paper analyses how China’s investments in Germany have developed over time and the potential impact of the COVID-19 pandemic in this regard, based on four different datasets, including our own survey in mid-2020. Our analysis shows that Germany is currently one of the most attractive investment destinations for Chinese investors. Chinese state-owned enterprises have played an important role as investors in Germany — particularly in large-scale projects. The COVID-19 pandemic has had some negative but rather temporary effects on Chinese investments in Germany. Germany is expected to stay attractive to Chinese investors who seek to gain access to advanced technologies and know-how in the future.

scholarly journals Development of a Radar Reflector Kit for Older Adults to Use to Signal Their Location and Needs in a Large-Scale Earthquake Disaster

2021 ◽  
Vol 13 (10) ◽  
pp. 1883
Author(s):  
Yuma Morisaki ◽  
Makoto Fujiu ◽  
Ryoichi Furuta ◽  
Junichi Takayama
Keyword(s):  
Older Adults ◽  
Synthetic Aperture Radar ◽  
Satellite Imagery ◽  
Disaster Response ◽  
Large Scale ◽  
Synthetic Aperture ◽  
Earthquake Disaster ◽  
Large Numbers ◽  
The World ◽  
Vulnerable People

In Japan, older adults account for the highest proportion of the population of any country in the world. When large-scale earthquake disasters strike, large numbers of casualties are known to particularly occur among seniors. Many are physically or mentally vulnerable and require assistance during the different phases of disaster response, including rescue, evacuation, and living in an evacuation center. However, the growing number of older adults has made it difficult, after a disaster, to quickly gather information on their locations and assess their needs. The authors are developing a proposal to enable vulnerable people to signal their location and needs in the aftermath of a disaster to response teams by deploying radar reflectors that can be detected in synthetic aperture radar (SAR) satellite imagery. The purpose of this study was to develop a radar reflector kit that seniors could easily assemble in order to make this proposal feasible in practice. Three versions of the reflector were tested for detectability, and a sample of older adults was asked to assemble the kits and provide feedback regarding problems they encountered and regarding their interest in using the reflectors in the event of a large-scale disaster.

scholarly journals System design for inferring colony-level pollination activity through miniature bee-mounted sensors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Haron M. Abdel-Raziq ◽  
Daniel M. Palmer ◽  
Phoebe A. Koenig ◽  
Alyosha C. Molnar ◽  
Kirstin H. Petersen
Keyword(s):  
Data Acquisition ◽  
Honey Bees ◽  
Large Scale ◽  
Physical World ◽  
Cluttered Environments ◽  
Robotic Mapping ◽  
Large Scale Data ◽  
Trade Offs ◽  
Large Numbers ◽  
Engineered Systems

AbstractIn digital agriculture, large-scale data acquisition and analysis can improve farm management by allowing growers to constantly monitor the state of a field. Deploying large autonomous robot teams to navigate and monitor cluttered environments, however, is difficult and costly. Here, we present methods that would allow us to leverage managed colonies of honey bees equipped with miniature flight recorders to monitor orchard pollination activity. Tracking honey bee flights can inform estimates of crop pollination, allowing growers to improve yield and resource allocation. Honey bees are adept at maneuvering complex environments and collectively pool information about nectar and pollen sources through thousands of daily flights. Additionally, colonies are present in orchards before and during bloom for many crops, as growers often rent hives to ensure successful pollination. We characterize existing Angle-Sensitive Pixels (ASPs) for use in flight recorders and calculate memory and resolution trade-offs. We further integrate ASP data into a colony foraging simulator and show how large numbers of flights refine system accuracy, using methods from robotic mapping literature. Our results indicate promising potential for such agricultural monitoring, where we leverage the superiority of social insects to sense the physical world, while providing data acquisition on par with explicitly engineered systems.

Pioneers in International Administration: A Prosopography of the Directors of the League of Nations Secretariat

2019 ◽  
Vol 13 (2) ◽  
pp. 190-227 ◽  
Author(s):  
Torsten Kahlert
Keyword(s):  
International Organizations ◽  
Large Scale ◽  
Second World War ◽  
League Of Nations ◽  
World War ◽  
Clear Trend ◽  
Organizational Contexts ◽  
Career Trajectories ◽  
Second World ◽  
Over Time

AbstractThis article investigates interwar internationalism from the perspective of the highest personnel of the first large-scale international administration, the League of Nations Secretariat. It applies a prosopographical approach in order to map out the development of the composition of the group of the section directors of the Secretariat over time in terms of its social and cultural characteristics and career trajectories. The analysis of gender, age, nationality, as well as educational and professional backgrounds and careers after their service for the League’s Secretariat gives insight on how this group changed over time and what it tells us about interwar internationalism. I have three key findings to offer in this article: First, the Secretariat was far from being a static organization. On the contrary, the Secretariat’s directors developed in three generations each with distinct characteristics. Second, my analysis demonstrates a clear trend towards professionalization and growing maturity of the administration over time. Third, the careers of the directors show a clear pattern of continuity across the Second World War and beyond. Even though the careers continued in different organizational contexts, the majority of the directors remained closely connected to the world of internationalism of the League, the UN world and its surrounding organizations. On a methodological level, the article offers an example of how prosopographical analysis can be used to study international organizations.

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