scholarly journals Characterization of the Test of Scientific Reasoning Ability of Static Fluid Material for Prospective Physics Teachers: the Polytomous Rasch Analysis Authors’

Author(s):  
Unang Purwana ◽  
Dadi Rusdiana ◽  
Winny Liliawati
2020 ◽  
pp. 73-84
Author(s):  
Ike Lusi Meilina ◽  
Supriyono Koes Handayanto ◽  
Muhardjito Muhardjito

Modelling instruction is systematic instructional activity for constructing and applying scientific knowledge in Physics lesson. The purpose of this research is to determine the effect of Modelling instruction with different reasoning abilities on understanding physical concepts by controlling students’ prior knowledge. This research used experimental method with 2x2 factorial design with two Modelling instruction classes and two conventional classes with a total of 176 students. The instrument used was reasoning ability test, prior knowledge test, and physics concept test. It used LCTSR (Lawson’s Classroom Test of Scientific Reasoning) instrument. Prior knowledge test instruments consisted of 25 problems to identify how deep the students understand the topic before they undergo the learning process and physics concept test consisted of 25 problems. Based on the statistical test using two factor Ancova, it proved that there was a significant difference in students’ ability to master the physics concept between using Modelling instruction learning model and using conventional learning model. The result showed that the Modelling instruction increasing conceptual understanding better than conventional learning. There are two important parts in the Modelling instruction that are model development and model deployment. This study also confirms that there are significant differences in understanding the concepts between students of high reasoning ability and low reasoning ability. Students with high reasoning abilities have a better understanding of concepts than students with low reasoning abilities.


2017 ◽  
Vol 6 (1) ◽  
Author(s):  
N. Novia ◽  
R. Riandi

<p>This study aims to determine the students’ achievement in answering modified lawson classroom test of scientific reasoning (MLCTSR) questions in overall science teaching and by every aspect of scientific reasoning abilities. There are six aspects related to the scientific reasoning abilities that were measured; they are conservatorial reasoning, proportional reasoning, controlling variables, combinatorial reasoning, probabilistic reasoning, correlational reasoning. The research is also conducted to see the development of scientific reasoning by using levels of inquiry models. The students reasoning ability was measured using the Modified Lawson Classroom Test of Scientific Reasoning (MLCTSR). MLCTSR is a test developed based on the test of scientific reasoning of Lawson’s Classroom Test of Scientific Reasoning (LCTSR) in 2000 which amounted to 12 multiple-choice questions. The research method chosen in this study is descriptive quantitative research methods. The research design used is One Group Pretest-Posttest Design. The population of this study is the entire junior high students class VII the academic year 2014/2015 in one junior high school in Bandung. The samples in this study are one of class VII, which is class VII C. The sampling method used in this research is purposive sampling. The results showed that there is an increase in quantitative scientific reasoning although its value is not big.</p>


2020 ◽  
Vol 185 ◽  
pp. 03042
Author(s):  
Yu Fang

The Coronavirus Disease-2019 (COVID-19) pandemic has led to a critical economic crash around the globe, affecting billions of people worldwide. Without a cure, the number of cases continues to increase exponentially. Countries, including the United States, Brazil, and India, currently lead in the number of cases with numbers soaring in the millions. Immunization is crucial to preventing the spread of infectious diseases and can help a large number of individuals quickly while keeping current cases under control. Following the publication of the genome sequence of SARS-CoV-2, vaccine development has been accelerated at an unprecedented rate. 115 vaccine candidates are currently under study with the hope of finding an ideal solution and mitigating the Coronavirus incidence rate. With some vaccine candidates having more potential than others, this review focuses on the characterization of different vaccine options. The analysis of probable vaccines, including mRNA vaccines and adenovirus vaccines, is conducted, and the scientific reasoning behind the vaccines is also discussed. In this review, the latest strategy vaccine is introduced and the effective vaccines are analysed.


2012 ◽  
Author(s):  
Vincent P. Coletta ◽  
Jeffrey A. Phillips ◽  
Jeff Steinert ◽  
N. Sanjay Rebello ◽  
Paula V. Engelhardt ◽  
...  

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