scholarly journals Two-Stage Collaborative Exams have Little Impact on Subsequent Exam Performance in Undergraduate Mathematics

2020 ◽  
Author(s):  
George Kinnear
Keyword(s):  
Positive Impact ◽  
Exam Performance ◽  
Control Group ◽  
Observational Methods ◽  
Undergraduate Mathematics ◽  
Two Stage ◽  
Subsequent Performance ◽  
Second Stage ◽  
Post Test ◽  
Two Stages

Abstract In this paper, I investigate whether two-stage exams aid learning in undergraduate mathematics, as measured by students’ performance on subsequent exams. In a two-stage exam, students complete the exam individually then form into groups to solve it again, with grades based on a combination of the two stages. Previous research in other disciplines has found mixed results about their effect on subsequent performance, and little is known about their use in undergraduate mathematics. Here, I report on three studies which investigate the use of two-stage exams in different undergraduate mathematics contexts. The first two studies replicate observational methods from previous research, and find indications of a positive impact from group collaboration. The third study is experimental and finds that, in a delayed post-test, there is no difference in performance between students who answered related questions in a two-stage exam format and a control group which had no collaborative second stage. The findings suggest that two-stage exams may have little impact on longer-term learning of mathematics, but instructors may still wish to use them to emphasise a collaborative classroom pedagogy.

A novel two-stage method of plant seedlings classification based on deep learning

2021 ◽  
pp. 1-11
Author(s):  
Tianhong Dai ◽  
Shijie Cong ◽  
Jianping Huang ◽  
Yanwen Zhang ◽  
Xinwang Huang ◽  
...  
Keyword(s):  
Deep Learning ◽  
Learning Technology ◽  
Two Stage ◽  
Second Stage ◽  
Stage Classification ◽  
Different Types ◽  
Two Stages ◽  
Plant Seedlings

In agricultural production, weed removal is an important part of crop cultivation, but inevitably, other plants compete with crops for nutrients. Only by identifying and removing weeds can the quality of the harvest be guaranteed. Therefore, the distinction between weeds and crops is particularly important. Recently, deep learning technology has also been applied to the field of botany, and achieved good results. Convolutional neural networks are widely used in deep learning because of their excellent classification effects. The purpose of this article is to find a new method of plant seedling classification. This method includes two stages: image segmentation and image classification. The first stage is to use the improved U-Net to segment the dataset, and the second stage is to use six classification networks to classify the seedlings of the segmented dataset. The dataset used for the experiment contained 12 different types of plants, namely, 3 crops and 9 weeds. The model was evaluated by the multi-class statistical analysis of accuracy, recall, precision, and F1-score. The results show that the two-stage classification method combining the improved U-Net segmentation network and the classification network was more conducive to the classification of plant seedlings, and the classification accuracy reaches 97.7%.

scholarly journals Grammatical sensitivity: a correlational-explanatory study on brain dominance and Efl training to improve gains

2011 ◽  
pp. 93
Author(s):  
Muriel Oyarce Piraud
Keyword(s):  
Medical Students ◽  
Abstract Reasoning ◽  
Brain Dominance ◽  
Second Stage ◽  
Left Brain ◽  
Reasoning Test ◽  
Grammatical Sensitivity ◽  
Post Test ◽  
Two Stages ◽  
The Brain

This article provides a report on a finished piece of research. The study is divided into two stages. Firstly, the brain dominance and grammatical sensitivity of Pedagogy and Medical students in a Chilean university were measured. The correlation of both variables shows that Medical students are better at grammatical sensitivity than Pedagogy students and that left-brain dominance involves higher levels of grammatical sensitivity than right-brain dominance. The instruments used in this stage were: 1) a grammatical sensitivity pre-test (used to assess the students’ levels in this variable), 2) a brain dominance instrument (used to determine the cerebral preferences of the students) and 3) an abstract reasoning test (which measures a person’s ability to identify non numerical or verbal patterns). In the second stage, Pedagogy students underwent a five-session training aimed at improving their grammatical sensitivity. After the training was over, we administered a grammatical sensitivity post- test whose results were compared with the ones in the pre-test; the purpose was to determine if the training could improve the students’ performance in this variable. It was concluded that the training was successful since their grammatical sensitivity improved in 20%. In addition, most students with high attendance to the training (over 80%) improved their grammatical sensitivity after attending it.

scholarly journals Gratitude Letter: An Effort to Increase Subjective Well-Being in College

2017 ◽  
Vol 32 (3) ◽  
pp. 158-168
Author(s):  
Stefanus Arista Christanto ◽  
Dea Brenda ◽  
Clara Assisiansi ◽  
Maria Jessica Pangestu ◽  
Ignatia Sarita ◽  
...  
Keyword(s):  
Well Being ◽  
Control Group ◽  
Subjective Well Being ◽  
College Life ◽  
Multiple Group ◽  
Psychology Faculty ◽  
Post Test ◽  
Quasi Experimental ◽  
Two Stages ◽  
Experimental Group

A preliminary study of students of a psychology faculty, revealed the fact that there are some students with low life satisfaction and negative affect during their college life. Low subjective well-being (SWB) was associated with decreased productivity and cognitive flexibility, which are important elements for studying. Previous researchers found a significant correlation between gratitude and SWB. The aim of this study is to enhance student SWB through an intervention of gratitude letter. We use two stages in this study: first a descriptive method (N = 282) to have an accurate description of the level of their SWB. Then, we select 60 students with the lowest SWB to participate in the next stage, a quasi-experimental method with multiple group design, consisting of two experimental group and one control group. Measurements were conducted with modified SLS, SPANE, and GQ6. Data a-nalysis revealed significant differences in gratitude and positive affect level that are differrent in each group. Significant improvement in gratitude and subjective well-being based on the pre-test, post-test 1, post-test 2 were only found in the group that writes and expresses the gratitude letter.

Two stage regression model with constraints; admissible second stage parameter estimation

2013 ◽  
Vol 63 (3) ◽  
Author(s):  
Lubomír Kubáček
Keyword(s):  
Parameter Estimation ◽  
Regression Model ◽  
Two Stage ◽  
Second Stage ◽  
Regression Experiment ◽  
Two Stages

AbstractIf a regression experiment is realized in two stages, then two possibilities can occur in the second stage. Estimates of the first stage parameters either may be corrected by use of second stage measurements or they must stay unchanged. In the latter case, this requirement must be taken into account when estimating the second stage parameters. The situation is a little more complicated when constraints on both groups of parameters are imposed.

scholarly journals The effect of integration electronic mind maps into Arabic language vocabulary’s lecture on achievements of fifth-grade students in Jordan

2019 ◽  
Vol 7 (05) ◽  
Author(s):  
Akram M. Alomari ◽  
Mohamad E. Alhorani
Keyword(s):  
Arabic Language ◽  
The Other ◽  
Fifth Grade ◽  
Control Group ◽  
Second Stage ◽  
Fifth Grade Students ◽  
Post Test ◽  
Mind Maps ◽  
Experimental Group ◽  
Northern Jordan

The study was conducted to investigate the integration of electronic mind map within the Arabic vocabulary instruction for fifth-grade students at Jordan. The sample included two classes chosen by the available method from the fifth grade classes in two schools in northern Jordan. One of the classes (29 pupils) whom represented the experimental group; its members studied using the strategy of Electronic Mind map. The other class (30 pupils) represented the control group. The researchers used an achievement test, as well as a collective interview conducted with the experimental group after the post-test. The results revealed that the computerized mind map reinforced students' educational accomplishment in Arabic vocabulary, increased their concentration and created the instructive process more interactive fascinating and gratifying and continue to learn. The study suggested the acceleration of the integration of mind maps in the Arabic language in several education stages. The necessity to produce schools with internet and pcs particularly within the second stage and also to require advantage of specialists within the field of educational technology to attain the highest-quality lecturers.

scholarly journals Evaluation of the Effectiveness of the Emotional Education Program EMO-ACTION within a Preschool Setting

2020 ◽  
Vol 39 ◽  
pp. 87-107
Author(s):  
María Fernández-Hawrylak ◽  
Davinia Heras-Sevilla ◽  
Amaya Cepa-Serrano
Keyword(s):  
Education Program ◽  
Emotional Regulation ◽  
Positive Impact ◽  
Preschool Education ◽  
Control Group ◽  
Emotional Skills ◽  
Preschool Students ◽  
Before And After ◽  
Post Test ◽  
Emotional Education

The effectiveness of the Emotional Education Program EMO-ACTION (EMO-ACCIÓN) in the development of emotional skills and emotional strategies is evaluated, as well as empathy and problemsolving skills among preschool students. A sample of 123 children were enrolled in the 2nd year of preschool education, aged between 4 and 5 years old. A design of repeated pre-test/post-test measurements was applied to an experimental group (60 children) and a control group (63 children). The Recognition, Regulation, Empathy and Problem-Solving Scale (RRER) was administered before and after the educational intervention. The results confi rm that the program had a positive impact on the development of emotional skills in the children that took part in it. A significant increase was noted in emotional recognition, in emotional regulation, and in the identification, and resolution of problems.  

scholarly journals Penggunaan Aplikasi Quizizz Sebagai Metode Evaluasi dalam Pembelajaran Daring terhadap Hasil Belajar pada Muatan PKn Kelas V SD

2021 ◽  
Vol 1 (7) ◽  
pp. 597-604
Author(s):  
Nurul Izzah Wahyuillahi ◽  
Imam Nawawi ◽  
Putri Mahanani
Keyword(s):  
Online Learning ◽  
Test Score ◽  
Positive Impact ◽  
Descriptive Analysis ◽  
Control Group ◽  
Control Group Design ◽  
Gain Score ◽  
Post Test ◽  
Final Score ◽  
Experimental Group

Abstract: This research was conducted with the aim of knowing The Effect of Using Quizizz App in Online Learning on 5th Graders' PKn Final Score at SD Negeri Bunulrejo 1 Malang. This study used quasi-experiment as a research method and nonequivalent control group as a research design. The subject of the study were 91 5th graders in total; 24 students from 5A class and 26 students from 5B class. The instruments used was post-test. The data analysis technique used are mean difference test and descriptive analysis. The result showed that the average PKn post-test score in experimental group was 95,27 with 25,08 gain score while the average PKn post-test score in control group was 65,75 with 16,29 gain score. It showed that the average PKn final score and gain score in the experimental group is higher than in the control group after the test is being held. We can conclude that there are positive impact on using Quizizz app in online learning on 5th graders' PKn final score at SD Negeri Bunulrejo 01 Malang. Abstrak: Penelitian ini dilakukan dengan tujuan guna mengetahui Pengaruh Penggunaan Aplikasi Quizizz Dalam Pembelajaran Daring Terhadap Hasil Belajar Pada Muatan PKN Kelas V di SD Negeri Bunulrejo 01 Malang. Penelitian ini menggunakan metode quasi eksperimental design dengan menggunakan desain penelitian nonequivalent control group design. Subjek penelitian adalah kelas VA sejumlah 24 peserta didik dan kelas VB sejumlah 26 peserta didik. Instrumen yang digunakan dalam penelitian ini berbentuk lembar tes. Teknik analisis data menggunakan beda mean dan analisis deskriptif. Berdasarkan hasil penelitian menunjukkan bahwa Aplikasi Quizizz dirasa sangat efektif dan berpengaruh terhadap hasil belajar siswa. Hal ini dapat dilihat dari hasil penelitian yang diperoleh sebagai berikut, nilai rata-rata post-test hasil belajar PKn kelas eksperimen sebesar 95,27 (kriteria sangat baik) dengan peningkatan nilai (gain score) sebesar 25,08, sedangkan kelas kontrol nilai rata-rata post-test hasil belajar PKn sebesar 65,75 (kriteria cukup) dengan peningkatan nilai (gain score) sebesar 16,29. Hasil penelitian menunjukkan nilai rata-rata hasil belajar PKn dan gain score kelas eksperimen lebih tinggi dibandingkan kelas kontrol setelah diberikan perlakuan. Sehingga dapat disimpulkan bahwa adanya pengaruh (positif) dalam penggunaan Aplikasi Quizizz terhadap hasil belajar PKn kelas V di SD Negeri Bunulrejo 01 Malang.

scholarly journals Programar para aprender Matemáticas en 5º de Educación Primaria: implementación del proyecto ScratchMaths en España

2021 ◽  
Vol 21 (68) ◽  
Author(s):  
Jesús Moreno León ◽  
Marcos Román González ◽  
Ramón García Perales ◽  
Gregorio Robles
Keyword(s):  
Positive Impact ◽  
Computational Thinking ◽  
Lessons Learned ◽  
Control Group ◽  
Mathematical Competence ◽  
University College ◽  
Post Test ◽  
University College London ◽  
Educación Primaria ◽  
Experimental Group

Este artículo presenta los resultados de la investigación que ha medido el impacto causal de la intervención realizada en el marco del proyecto Escuela de Pensamiento Computacional, que el Ministerio de Educación y Formación Profesional de España puso en marcha en el curso académico 2018-2019. En concreto, el trabajo estudia si es posible mejorar el desarrollo de la competencia matemática del alumnado a través de actividades de programación usando el lenguaje Scratch en 5º de Educación Primaria. El diseño de la investigación consiste en un estudio empírico de intervención basado en las lecciones aprendidas del proyecto ScratchMaths, desarrollado por la University College London en Reino Unido. Se han usado dos grupos de estudiantes no equivalentes, grupo experimental y grupo de control, sin asignación aleatoria, con medición pre-test y post-test sobre la variable competencia matemática. Para ello, se ha contado con la participación de más de 3.700 estudiantes, que fueron asignados bien al grupo experimental -que trabajó la competencia matemática a través de actividades de programación informática- o al grupo de control -que lo hizo con otras actividades y recursos habituales en el área de Matemáticas. Los resultados muestran que el alumnado del grupo experimental desarrolló en mayor medida esta competencia que el alumnado del grupo de control, apreciándose un impacto significativo y positivo sobre la misma. Con un tamaño del efecto de la intervención d=0,449 puede afirmarse que el proyecto logró el efecto pretendido sobre la competencia matemática de los estudiantes. La generalización de experiencias de pensamiento computacional en el currículum podrá garantizar la mejora de la calidad de los procesos de enseñanza y aprendizaje. This article presents the results of an investigation that has measured the causal impact of the intervention carried out within the framework of the School of Computational Thinking project, launched by the Ministry of Education and Vocational Training of Spain in the 2018-2019 academic year. Specifically, the work studies whether it is possible to improve the development of students’ mathematical competence through programming activities using the Scratch language in 5th grade of Primary Education. The research design consists of an empirical intervention study based on the lessons learned from the ScratchMaths project, developed by University College London in the United Kingdom. Two groups of non-equivalent students have been used, the experimental group and the control group, without random assignment, with pre-test and post-test measurement on the mathematical competence variable. More than 3,700 students participated in the investigation, who were assigned either to the experimental group -which worked on the mathematical competence through computer programming activities- or to the control group -which did so with other common activities and resources in the area of ​​Mathematics. The results show that the students in the experimental group developed this competence to a greater extent than the students in the control group, with a significant and positive impact on it. Being the intervention effect size d=0.449, it can be stated that the project achieved the intended effect on the students’ mathematical competence. The generalization of computational thinking experiences in the curriculum can guarantee the improvement of the quality of the teaching and learning processes.

scholarly journals The effect of the Zahoric model in learning some kinetic sentences

2020 ◽  
Vol 19 (2) ◽  
pp. 0045
Author(s):  
M. Maison Mohammed Dr. Luma Sameer
Keyword(s):  
Teaching Method ◽  
Control Group ◽  
Second Stage ◽  
Short Period ◽  
Post Test ◽  
And Performance ◽  
And Control ◽  
Experimental Group ◽  
Positive Results ◽  
Better Than

When teaching or training fencing we find that most learners are able to perform some fencing skills during learning within the lesson, but they find it difficult to perform the same skills when linked in one sentence after a short period or in subsequent lessons, or during practical exams, so I conducted those Study to develop solutions to this problem by investing the Zahoric model and its distinctive educational steps in learning the kinetic sentences in the female blinds, and its impact on the process of learning and linking kinetic sentences in the sport of fencing and make the learning process more effective and economical.   The experimental method was used by designing the experimental and control groups with pre- and post-test on a sample of the second stage students (B22), representing the experimental group and learning the skills using the Zahoric model in its five steps, while the (D26) student representing the control group, which is learning the fencing skills according to the teaching method. Followed. The learning and performance of some kinetic sentences were evaluated by a standardized form of fencing according to the parts of the movement and their manifestations.  An educational curriculum has been prepared using the Zahorik model to learn the kinetic sentences by fencing according to the sectoral vocabulary of the second semester by following the steps of the model (activating information - acquiring - understanding - using - thinking in information). After the statistical treatments, it was concluded that the Zoharic model, designed to learn some kinetic sentences in the experimental group, gave positive results in evaluating the kinetic sentences better than the teaching method used in the control group. In light of the conclusion, it is recommended to adopt the Zoharik model in learning some kinetic sentences with a blind weapon, as it gives the learner a positive in the analysis, composition and understanding of the movements that are combined to give a kinetic sentence that ends with a touch in favor of the attacker who clearly understands where it begins and ends the syntax of the correct kinetic sentence, which resolves the sentence in his favor.

scholarly journals Effectiveness of nonviolent communication (NVC) workshop on marital adjustment

2017 ◽  
Vol 26 (1) ◽  
pp. 69-75
Author(s):  
Shaheen Islam ◽  
Roufun Naher
Keyword(s):  
Repeated Measures ◽  
Marital Adjustment ◽  
Positive Impact ◽  
Control Group ◽  
Nonviolent Communication ◽  
Repeated Measures Design ◽  
Significant Difference ◽  
Post Test ◽  
Experimental Group

The present study examined the effectiveness of nonviolent communication (NVC) workshop on marital adjustment. The hypothesis was receiving nonviolent communication (NVC) workshop has positive impact on marital adjustment. The independent variable was NVC workshop and the dependent variable was marital adjustment score. For conducting this research, repeated measures design was followed and 20 Bangladeshi married people participated in it. The results have shown that there was a statistically significant difference (F = 16.790, p < 0.05) in marital adjustment score of experimental group over the three time periods and pairwise comparisons indicate that there was significant difference between pretest and post-test and also between pretest and follow- up test at the 0.05 level. Results also have shown that, there was statistically significant difference of marital adjustment score between experimental and control group in posttest (t = 4.276, p < 0.05) and follow-up test (t = 4.176, p < 0.05). Thus, after receiving NVC workshop the marital adjustment score of experimental group increased significantly (F = 16.79, p < 0.001) in post-test measure and also remain constant in follow-up, whereas the marital adjustment score of control group had no significant change. This implied a significant positive impact of participation in NVC workshop on marital adjustment. Dhaka Univ. J. Biol. Sci. 26(1): 69-75, 2017 (January)

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