Testing Students' Ability to Do Geometric Proofs: A Comparison of Three Objective Item Types

1971 ◽  
Vol 2 (3) ◽  
pp. 213
Author(s):  
Gerald S. Hanna
Keyword(s):  

1971 ◽  
Vol 2 (3) ◽  
pp. 213-217
Author(s):  
Gerald S. Hanna

In final geometry examinations and in standardized achievement tests, scoring convenience often precludes the use of formal student-produced proofs. This study sought objective item types that would as nearly as possible measure the same abilities as those measured by student-produced formal proofs. A test of conventional proofs was used to compare the concurrent validity of 3 objective item types. Significant differences among the experimental item types were found.







2019 ◽  
Vol 11 (3) ◽  
pp. 1134-1138
Author(s):  
Pei-Chuan Cheng ◽  
Wen-Kuei Hsieh

In the past years, most traditional item analysis only analyses difficulty and discrimination of each item, and test analysis only analyses overall test reliability and validity. As a result, EFL educators are lack of information on students’ response data for both students’ learning styles and item types in test questions preparation. Thus, the study presents the various item types of the English achievement assessment of Junior High School Students in Taiwan, and illustrates the various learning styles of the EFL students. The participants were randomly selected from one thousand four hundred and forty two junior high school students, who participated in Taiwan Assessment of Student Achievement in Junior High School English (TASA) held by National Academy for Educational Research (NAER). The data was analyzed based on the dichotomous scoring and the Student-Problem Chart Analysis. The result of Caution Index for Students shows that high achievement students account for one third of the sample students. However, the other students were classified as learning abnormality, inattention learning, and lack of learning adequateness, insufficiency learning, and lack of academic ability. Also, the result of caution index for problems shows that the test items of English Achievement Assessment were capable of measuring the English achievements of junior high school student and it also can differentiate high achievers from the low achiever in Taiwan. To improve the further test question preparation, only partial revisions are suggested for National Academy for Educational Research (NAER).





1992 ◽  
Vol 5 (1) ◽  
pp. 35-48 ◽  
Author(s):  
Mary Roznowski ◽  
James Bassett
Keyword(s):  


Author(s):  
Michelle Blom ◽  
Slava Shekh ◽  
Don Gossink ◽  
Tim Miller ◽  
Adrian R Pearce

Future defense logistics will be heavily reliant on autonomous vehicles for the transportation of supplies. We consider a dynamic logistics problem in which: multiple supply item types are transported between suppliers and consuming (sink) locations; and autonomous vehicles (road-, sea-, and air-based) make decisions on where to collect and deliver supplies in a decentralized manner. Sink nodes consume dynamically varying demands (whose timing and size are not known a priori). Network arcs, and vehicles, experience failures at times, and for durations, that are not known a priori. These dynamic events are caused by an adversary, seeking to disrupt the network. We design domain-dependent planning algorithms for these vehicles whose primary objective is to minimize the likelihood of stockout events (where insufficient resource is present at a sink to meet demand). Cost minimization is a secondary objective. The performance of these algorithms, across varying scenarios, with and without restrictions on communication between vehicles and network locations, is evaluated using agent-based simulation. We show that stockpiling-based strategies, where quantities of resource are amassed at strategic locations, are most effective on large land-based networks with multiple supply item types, with simpler “shuttling”-based approaches being sufficient otherwise.



2020 ◽  
Vol 2020 (1) ◽  
pp. 1-16
Author(s):  
Hongwen Guo ◽  
Guangming Ling ◽  
Lois Frankel
Keyword(s):  


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