scholarly journals Randomized field trial comparing the efficacy of florfenicol and oxytetracycline in a natural outbreak of calf pneumonia using lung reaeration as a cure criterion

2022 ◽  
Author(s):  
Stan Jourquin ◽  
Jade Bokma ◽  
Lieze De Cremer ◽  
Katharina Leenen ◽  
Nick Vereecke ◽  
...  
Keyword(s):  
Field Trial ◽  
Randomized Field Trial ◽  
Natural Outbreak

Developing Ambitious Mathematics Instruction Through Web-Based Coaching: A Randomized Field Trial

2020 ◽  
Vol 57 (6) ◽  
pp. 2378-2414 ◽  
Author(s):  
Matthew A. Kraft ◽  
Heather C. Hill
Keyword(s):  
Field Trial ◽  
Math Instruction ◽  
Web Based ◽  
Sustained Effects ◽  
Randomized Field Trial ◽  
Interim Assessments ◽  
Mathematical Quality ◽  
Math Test ◽  
Math Test Scores

This article describes and evaluates a web-based coaching program designed to support teachers in implementing Common Core–aligned math instruction. Web-based coaching programs can be operated at relatively lower costs, are scalable, and make it more feasible to pair teachers with coaches who have expertise in their content area and grade level. Results from our randomized field trial document sizable and sustained effects on both teachers’ ability to analyze instruction and on their instructional practice, as measured by the Mathematical Quality of Instruction instrument and student surveys. However, these improvements in instruction did not result in corresponding increases in math test scores as measured by state standardized tests or interim assessments. We discuss several possible explanations for this pattern of results.

scholarly journals Randomized field trial on the effects of body weight and short transport on stress and immune variables in 2‐ to 4‐week‐old dairy calves

2019 ◽  
Vol 33 (3) ◽  
pp. 1514-1529 ◽  
Author(s):  
Christien Masmeijer ◽  
Bert Devriendt ◽  
Tina Rogge ◽  
Katharina Leenen ◽  
Lieze De Cremer ◽  
...  
Keyword(s):  
Body Weight ◽  
Field Trial ◽  
Dairy Calves ◽  
Randomized Field Trial

Truancy Intervention Reduces Crime: Results from a Randomized Field Trial

2017 ◽  
Vol 35 (2) ◽  
pp. 309-329 ◽  
Author(s):  
Sarah Bennett ◽  
Lorraine Mazerolle ◽  
Emma Antrobus ◽  
Elizabeth Eggins ◽  
Alex R. Piquero
Keyword(s):  
Field Trial ◽  
Randomized Field Trial

How all Stars Works: An Examination of Program Effects on Mediating Variables

2004 ◽  
Vol 31 (2) ◽  
pp. 165-178 ◽  
Author(s):  
Ralph B. McNeal ◽  
William B. Hansen ◽  
Nancy Grant Harrington ◽  
Steven M. Giles
Keyword(s):  
Substance Use ◽  
Risk Behavior ◽  
Field Trial ◽  
Program Effectiveness ◽  
Prevention Research ◽  
Normative Beliefs ◽  
School Based ◽  
Program Effects ◽  
Randomized Field Trial ◽  
Change Mediators

Prevention research continues to focus on school-based substance use programs aimed at adolescents. These programs are designed to reduce substance use and risk behavior by targeting key mediators, such as normative beliefs, which in turn reduce substance use. All Stars is a newly developed program that was recently evaluated in a randomized field trial in 14 middle schools in Lexington and Louisville, Kentucky. The authors examined targeted and nontargeted variables as possible mediators of program effectiveness. Findings indicate that All Stars achieved reductions in substance use and postponed sexual activity when teachers were successful at altering targeted mediators: normative beliefs, lifestyle incongruence, and manifest commitment to not use drugs. The program was not successful when it was delivered by specialists. At least in part, this failure is attributable to specialists’ inability to change mediators as intended by the program.

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