scholarly journals Can Social Information Affect What Job You Choose and Keep?

2017 ◽  
Vol 9 (1) ◽  
pp. 96-117 ◽  
Author(s):  
Lucas C. Coffman ◽  
Clayton R. Featherstone ◽  
Judd B. Kessler
Keyword(s):  
Field Experiment ◽  
Treatment Effects ◽  
Social Information ◽  
Teach For America ◽  
Simple Theory ◽  
High Stakes ◽  
Persistent Effect ◽  
Second Year ◽  
Over Time

We show that the provision of social information influences a high-stakes decision and this influence persists over time. In a field experiment involving thousands of admits to Teach For America, those told about the previous year's matriculation rate are more likely to accept a teaching job, complete training, start, and return a second year. To show robustness, we develop a simple theory that identifies subgroups where we expect larger treatment effects and find our effect is larger in those subgroups. That social information can have a powerful, persistent effect on high-stakes behavior broadens its relevance for policy and theory. (JEL D83, I21, J22, J45, L31, Z13)

scholarly journals Phosphorus effects of recycled products from municipal wastewater on crops in a field experiment

2017 ◽  
Vol 63 (No. 10) ◽  
pp. 475-482 ◽  
Author(s):  
Vogel Telse ◽  
Nelles Michael ◽  
Eichler-Löbermann Bettina
Keyword(s):  
Field Experiment ◽  
Municipal Wastewater ◽  
Spring Barley ◽  
P Uptake ◽  
Control Treatment ◽  
First Year ◽  
Soil P ◽  
Second Year ◽  
Fertilizing Effect ◽  
Sludge Ash

In this study, the phosphorus (P) fertilizing effects of struvite, one thermochemical-treated sewage sludge ash (SSA) based on Ca-P (Ca-SSA) and one full sulfuric acid-digested SSA based on Al-P (Al-SSA) were analysed in comparison to triple superphosphate (TSP) and a control treatment (CON) without P application in a two-year field experiment. In the field experiment, the effects of the recycling products on crop yield, P uptake and labile soil P fractions were analysed. In addition, the effect of nitrogen and magnesium contained in struvite was investigated in the second year of the experiment compared to TSP and CON. In the first year, spring barley was cultivated in the field experiment; and in the second year, it was forage rye followed by sorghum. In the second year, the relative P effectiveness (forage rye, sorghum) of the recycling products compared to TSP increased in the order: Ca-SSA (81%, 91%) ≤ Al-SSA (91%, 96%) = struvite (102%, 110%). In addition, an magnesium fertilizing effect of struvite could be demonstrated. The results show that the recycling products from wastewater treatment are appropriate to substitute rock phosphate-based fertilizers.

Growth, freezing tolerance, and yield performance of alfalfa (Medicago sativaL.) cultivars grown under controlled and field conditions in northern latitudes

2018 ◽  
Vol 98 (5) ◽  
pp. 1109-1118 ◽  
Author(s):  
Mervi M. Seppänen ◽  
Ville Alitalo ◽  
Hanna K. Bäckström ◽  
Kirsi Mäkiniemi ◽  
Venla Jokela ◽  
...  
Keyword(s):  
Field Experiment ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Field Experiments ◽  
Starch Content ◽  
Day Length ◽  
Forage Legume ◽  
Northern Latitudes ◽  
Medicago Sativa L ◽  
Second Year

Alfalfa (Medicago sativa L.) is one of the most popular forage legume crops worldwide. Its cultivation in the boreal and sub-boreal zone is restricted by inadequate winter hardiness, but global warming may increase its adaptability in these latitudes. Here, we examined variation in growth and freezing tolerance of four alfalfa cultivars recommended for the northern temperate climates of Europe (Alexis, Lavo, Live, and Nexus) and two cultivars with adaptation to milder or Mediterranean climates (Rangelander and Hunter River). Two experiments under controlled conditions (growth cessation and cold acclimation experiments) along with a 2-yr field experiment were conducted. Lavo was the most freezing-tolerant cultivar in both the cold acclimation and field experiments. Both Rangelander and Hunter River showed poor freezing tolerance. Lavo responded to decreasing temperatures, unlike the response to shorter day length, by allocating biomass to the roots. In general, better freezing tolerance was associated with high total nonstructural carbohydrate and low starch content. The field experiment results revealed that the more freezing-tolerant cultivars may have some advantages regarding yield, especially in the second year, but the differences between the cultivars were modest.

scholarly journals Introducing Computer-Based Testing in High-Stakes Exams in Higher Education: Results of a Field Experiment

PLoS ONE ◽  
2015 ◽  
Vol 10 (12) ◽  
pp. e0143616 ◽  
Author(s):  
Anja J. Boevé ◽  
Rob R. Meijer ◽  
Casper J. Albers ◽  
Yta Beetsma ◽  
Roel J. Bosker
Keyword(s):  
Higher Education ◽  
Field Experiment ◽  
High Stakes ◽  
Computer Based ◽  
Computer Based Testing ◽  
High Stakes Exams

scholarly journals The Role of Teacher-Student Conferencing in Improving Grammatical Accuracy in University EFL Students’ Composition Writing

2017 ◽  
Author(s):  
Arab World English Journal ◽  
Naima Hamlaoui ◽  
Sarra Fellahi
Keyword(s):  
University Students ◽  
Writing Classes ◽  
Oral Feedback ◽  
Teacher Student ◽  
Grammatical Accuracy ◽  
Efl Students ◽  
Second Year ◽  
Written Compositions ◽  
Over Time

Based on the value of teacher-student conferencing practice in writing classes, the study investigates the role of this practice in improving grammatical accuracy in EFL university students’ writing. One particular aim of this study is to help second-year students at Sétif 2 University (Algeria) reduce subject-verb (S-V) disagreement and run-ons in their writing. Ten students took part in this study; they wrote 120 drafts, and were provided with teacher’s oral feedback on their written compositions at the editing stage. Corpora of students’ compositions were examined and instances of errors were counted before each conferencing session for four weeks. The findings reveal that the participants successfully show progress in grammatical accuracy over time to reach elimination for Subject-Verb disagreements and a significant reduction for run-ons.

scholarly journals Complexity and Relative Complexity in Generative Grammar

2021 ◽  
Vol 6 ◽  
Author(s):  
Frederick J. Newmeyer
Keyword(s):  
Generative Grammar ◽  
Simple Theory ◽  
Raw Data ◽  
Complex Theory ◽  
Relative Complexity ◽  
History Of ◽  
Over Time

The notions of “complexity” and its antonym “simplicity” have played an important role in the history of generative grammar. However, these terms have been used in different ways. There have been discussions about whether the raw data is complex (or not), about whether a particular theory is complex (or not), and about whether a particular analysis is complex (or not). This article both sorts out the various uses of these terms in the history of generative grammar and demonstrates that motivations have changed over time for whether a complex theory or a simple theory is more desirable. The article concludes with a discussion of the issue of relative complexity in generative grammar, that is, whether the theory embodies the possibility that a grammar of one language can be more or less complex than the grammar of another.

Determination of the Maximum Appearance Period of Capnodis tendebrionis in Al-Sweida-Syria Governorate and Testing the Efficacy of Some Pesticides on the Pest Adults

2021 ◽  
Vol 39 (4) ◽  
pp. 268-272
Author(s):  
Mazen Bufaur ◽  
◽  
Safwat Al-Gkhami ◽  
Rami Bou Hamdan ◽  
Waed Ghanem ◽  
...  
Keyword(s):  
Field Experiment ◽  
Plant Protection ◽  
Foliar Spray ◽  
First Year ◽  
Highly Efficient ◽  
Second Year

Bufaur, M., S. Al-Gkhami, R. Bohamdan, W. Ghanem and M. Dawara. 2021. Determination of the Maximum Appearance Period of Capnodis tendebrionisin Al-Sweida-Syria Governorate and Testing the Efficacy of Some Pesticides on the Pest Adults. Arab Journal of Plant Protection, 39(4): 268-272. https://doi.org/10.22268/AJPP-39.4.268272 A weekly adults collection of Capnodis tendebrionis L. (Buprestidae; Coleoptera) was conducted for two seasons (2018, 2019) to determine the maximum insect adults appearance period. Early adult appearance was recorded in the first year in warm-dry months as compared to the second year in cold-wet months. Maximum insect adults appearance was recorded at the end of April during the first season and at the end of May in the second season. A field experiment was carried out to test the efficacy of some pesticides on controlling pest adults: Deltamethrin, 100g/l, Chlorpyriphos-ethyl 48% and Acetamiprid 20% as a foliar spray, and Deltamethrin 0.25% as dusting powder around the stem, in addition to the control. Results obtained showed that Chlorpyriphos-ethyl and the two Deltamethrin treatments were the best on adults and with significant differences compared with Acetamiprid treatment following the first and the second week after spraying in 2018, and the Deltamethrin as dusting powder and Chlorpyriphos-ethyl treatments were the best and with significant differences compared to other treatments were observed. Using Deltamethrin as dusting powder around the stem was highly efficient during three weeks after spraying as compared with other treatments in the two years. Keywords: Capnodis tendebrionis L., Maximum adult appearance period, Deltamethrin, Chlorpyriphos- ethyl and Acetamiprid

Analysis and Decision

2019 ◽  
pp. 161-186
Author(s):  
Jeffrey A. Friedman
Keyword(s):  
Foreign Policy ◽  
Probabilistic Reasoning ◽  
Large Body ◽  
Decision Makers ◽  
Risky Decision ◽  
High Stakes ◽  
Policy Choices ◽  
Foreign Policies ◽  
The U.S ◽  
Over Time

This chapter explains how decision makers can incorporate assessments of uncertainty into high-stakes foreign policy choices. It begins by describing a simple analytic tool called break-even analysis, with which leaders can use explicit probability assessments as a point of leverage for determining whether or not a risky decision is worthwhile. The chapter then explains how transparent probabilistic reasoning is especially important for assessing strategic progress. In some cases, it can actually be impossible to make rigorous judgments about the extent to which foreign policies are making acceptable progress without assessing subjective probabilities in detail. This argument departs from a large body of existing scholarship on learning in international politics that assumes leaders can use a straightforward logic of trial and error to determine how they should update their strategic perceptions over time. The chapter provides examples of these dynamics drawn from the U.S. occupation of Iraq.

Keys to Effective Communication in All Circumstances

2019 ◽  
pp. 27-42
Author(s):  
Kirsten J. Broadfoot ◽  
Todd A. Guth
Keyword(s):  
Cognitive Processing ◽  
Clinical Decision Making ◽  
Situational Awareness ◽  
Clinical Decision ◽  
Patient Needs ◽  
High Stakes ◽  
Communication Practices ◽  
High Degree ◽  
Patient Stories ◽  
Over Time

Emergency departments (EDs), with their high degree of interruption, evolving and often incoherent patient stories, and multiple patient needs, strain practitioner cognitive processing over time, forcing a reliance on default communication approaches and pattern recognition. This shift to scripted, routinized, and default approaches to interaction in the ED reduces situational awareness, impacting providers’ ability to respond appropriately to the person and story in front of them and their clinical decision making. However, being able to rapidly and effectively adapt to circumstances is essential for high-functioning providers in emergency department settings. Although solid, learned fundamental communication checklists can suffice in straightforward, low-stakes, or routine individual and team encounters, complicated, high-stakes, or unusual circumstances or situations require effective communicators to move beyond habituated communication practices to those that enable providers to appropriately interpret and adapt to circumstances while respecting self, others, and context.

scholarly journals A Rasch Model and Rating System for Continuous Responses Collected in Large-Scale Learning Systems

2020 ◽  
Vol 11 ◽  
Author(s):  
Benjamin Deonovic ◽  
Maria Bolsinova ◽  
Timo Bechger ◽  
Gunter Maris
Keyword(s):  
Rasch Model ◽  
Large Scale ◽  
Learning Systems ◽  
Rating System ◽  
Continuous Variables ◽  
High Stakes ◽  
Continuous Responses ◽  
Anytime Learning ◽  
Cold Start Problem ◽  
Over Time

An extension to a rating system for tracking the evolution of parameters over time using continuous variables is introduced. The proposed rating system assumes a distribution for the continuous responses, which is agnostic to the origin of the continuous scores and thus can be used for applications as varied as continuous scores obtained from language testing to scores derived from accuracy and response time from elementary arithmetic learning systems. Large-scale, high-stakes, online, anywhere anytime learning and testing inherently comes with a number of unique problems that require new psychometric solutions. These include (1) the cold start problem, (2) problem of change, and (3) the problem of personalization and adaptation. We outline how our proposed method addresses each of these problems. Three simulations are carried out to demonstrate the utility of the proposed rating system.

The initial and residual responses to phosphorus fertilizers of Townsville stylo in pure ungrazed swards at Katherine, N.T

1972 ◽  
Vol 12 (58) ◽  
pp. 488 ◽  
Author(s):  
MJ Fisher ◽  
NA Campbell
Keyword(s):  
Field Experiment ◽  
Residual Effects ◽  
Yield Data ◽  
Christmas Island ◽  
Stylosanthes Humilis ◽  
Phosphorus Fertilizers ◽  
Nitrogen Concentrations ◽  
Townsville Stylo ◽  
Residual Values ◽  
Second Year

The response of a pure sward of Townsville stylo (Stylosanthes humilis) to various initial and annual dressings of both superphosphate and calcined Christmas Island C-grade phosphate (CCICP) was determined in a field experiment at Katherine, N.T. Townsville stylo responded to superphosphate up to at least 750 kg ha-1. Initial responses and residual effects in the second year and three-year totals were much greater with superphosphate than with CCICP. CCICP gave very variable yields in the second and third years. Nitrogen concentrations were not affected by applied phosphorus but phosphorus concentrations were increased, more by superphosphate than by CCICP. Residual values of superphosphate were derived from Mitscherlich curves fitted to phosphorus yield data, and from these it was determined that 250 kg ha-1 initial and 100 kg ha-1 annual dressing of superphosphate would give stable uptake of phosphorus at the same level as 250 kg ha-1 in the initial year.

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