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Search Results: 1 - 10 of 585 matches for " Kohei Okado "
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Three-Year Longitudinal Survey of Changes in Consciousness about English in Junior High School Students and its Relationship with Academic Achievement  [PDF]
Kohei Okado, Noriyuki Kida
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.102014
Abstract: This study explored correlation between changes of consciousness and academic achievement about English across the 3 years on junior high school in Japan. The purpose of this study was to develop and assess the item of consciousness about English in junior high school. For that reason, a 3-year longitudinal survey of exploratory factor analysis was conducted, which extracted three factors: “Interest score”, “Quantitative learning score” and “Quality of learning score”. Then, correlation between the three factors and academic achievement was investigated. Results indicated that Interest score and Quality of learning score have a strong correlation with academic achievement for English and the Quantitative learning score had a weak correlation with academic achievement. In mathematics education, there was a strong correlation between interest in the 1st-year and academic achievement (Okado et al., 2019), whereas in English, there was a strong correlation between interest from the 2nd-year to 3rd-year, and academic achievement. These results suggest that educational activities focusing on the consciousness about English are useful for improving English education of junior high school students.
Correlations between Changes in Study Habits and Academic Results in Junior High School Students—A Longitudinal Survey at a Private Junior High School  [PDF]
Kohei Okado, Hiroyuki Yoshida, Noriyuki Kida
Psychology (PSYCH) , 2017, DOI: 10.4236/psych.2017.813133
Abstract: Correlations between changes in study habits and academic results in Japanese junior high school students were investigated through a longitudinal survey. Participants were students enrolled in a private junior high school (N = 170). A questionnaire was conducted twice a year for three years. Moreover, results of regular exams and mock exams were collected. The results indicated a high correlation between scores of subject study habits and academic results. Furthermore, the results of cluster analysis indicated that patterns of changes in learning motivation were classified into four types, and academic records were low in the declining type and considerably declining type. Based on the results above, it is considered effective to detect changes in study habits of each student in early stages through regularly evaluating study habits quantitatively, for improving students’ academic skills.
Changes in Study Habits of Chinese Adolescents and Factors Supporting These Habits-Focusing on the Transition Period from Elementary School to Junior High School  [PDF]
Kohei Okado, Noriyuki Kida, Takeshi Sakai
Psychology (PSYCH) , 2018, DOI: 10.4236/psych.2018.95068
Abstract: Changes in study habits of Chinese adolescents and factors supporting these habits were investigated through a survey on study habits and through interview surveys focusing on the transition period from elementary school to junior high school. Participants were students attending public schools in China (Shanghai, Beijing, Nanjing, and Zhenjiang). A questionnaire was conducted in the elementary school for 6th grade students and in the junior high schools for 1st through 3rd grade students. Moreover, in Beijing, results of exams (Chinese language, Math, English) were collected. The results indicated a high correlation between study habits and academic results. And, a decline in study habits of students from elementary to junior high school was not observed in this study. Furthermore, the results of the interview surveys indicated that high results of Chinese education were not achieved only through cramming, and that “learning ahead” is significant. In addition to the adequate support provided by teachers and parents, a correlation between school lessons and high academic results was also observed.
Three-Year Longitudinal Survey of Changes in Consciousness about Mathematics in Junior High School Students and Its Relationship with Academic Achievement  [PDF]
Kohei Okado, Noriyuki Kida, Takeshi Sakai
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.101004
Abstract: This study explored correlation between changes of consciousness and academic achievement about mathematics across the 3 years on junior high school in Japan. The purpose of this study was to develop and assess the item of consciousness about mathematics in junior high school. For that reason a 3-year longitudinal survey was conducted in a private junior high school for three generations. First, an exploratory factor analysis was conducted, which extracted two factors: “Interest score” and “Quantitative learning score”. Then, correlations between the two factors and academic achievement were investigated. Results indicated that Interest score had a strong correlation with academic achievement for mathematics and the Quantitative learning score had a weak correlation with academic achievement. These results suggest that educational activities focusing on the consciousness about mathematics are useful for improving mathematical education of junior high school students.
The Relationship between Athletic Abilities of Japanese High School Soccer Players and Their Psychological Skills in Both Athletic Club and School Life Settings  [PDF]
Kohei Ueno
Advances in Physical Education (APE) , 2014, DOI: 10.4236/ape.2014.42008
Abstract:

To examine the relationship between students’ athletic ability and their psychological skills in the athletic club and the school life setting, 99 players from high school soccer teams were administered with the Psychological Skills Inventory for Athletic Clubs and the Psychological Skills Inventory for School Life. Five coaches of the soccer teams evaluated the players’ athletic ability, using the Technique, Intelligence and Insight, Personality, and Speed (TIPS) evaluation framework. Structural equation modeling was conducted to test a series of structural models. Psychological skills in the school life setting have a direct effect on athletic ability. In addition, psychological skills in an athletic club setting have an indirect effect on athletic ability through psychological skills in the school life setting. In conclusion, the coach’s belief that players who have life skills and can control their daily life must have a high athletic ability was not wrong.

A New Algorithm for Generalized Least Squares Factor Analysis with a Majorization Technique  [PDF]
Kohei Adachi
Open Journal of Statistics (OJS) , 2015, DOI: 10.4236/ojs.2015.53020
Abstract: Factor analysis (FA) is a time-honored multivariate analysis procedure for exploring the factors underlying observed variables. In this paper, we propose a new algorithm for the generalized least squares (GLS) estimation in FA. In the algorithm, a majorization step and diagonal steps are alternately iterated until convergence is reached, where Kiers and ten Berge’s (1992) majorization technique is used for the former step, and the latter ones are formulated as minimizing simple quadratic functions of diagonal matrices. This procedure is named a majorizing-diagonal (MD) algorithm. In contrast to the existing gradient approaches, differential calculus is not used and only elmentary matrix computations are required in the MD algorithm. A simuation study shows that the proposed MD algorithm recovers parameters better than the existing algorithms.
The Effect of Participation in a Game of Tag, an Activity Promoting Helping Behavior, on Children’s Helping Behavior-Related Self-Efficacy  [PDF]
Kohei Ueno
Advances in Physical Education (APE) , 2018, DOI: 10.4236/ape.2018.82021
Abstract: With a breakdown in classroom discipline, bullying and social withdrawal have become social problems in recent years; there is a heightened expectation toward physical education for developing proper social attitudes and cultivating morality. In this study, children were instructed to play “Nakama-oni (helping tag)”, a tag game variant promoting helping behavior through physical education. Thereafter, the frequency of helping behavior in Nakama-oni was checked, and the effect of participation in physical education through Nakama-oni on children’s helping behavior-related self-efficacy was discussed. Sixty elementary school children in the fifth grade played both Nakama-oni and normal tag. The results suggested that: 1) children experienced helping behavior more often in Nakama-oni, compared to normal tag; and 2) participation in Nakama-oni enhanced children’s helping behavior-related self-efficacy. In conclusion, results suggest that incorporating Nakama-oni that promotes helping behavior in physical education enhances children’s helping behavior-related self-efficacy.
Simplicity and similarity of Kirillov-Reshetikhin crystals
Masato Okado
Mathematics , 2012,
Abstract: We show that the Kirillov-Reshetikhin crystal B^{r,s} for nonexceptional affine types is simple and have the similarity property. As a corollary of the first fact we can derive that the tensor product of KR crystals is connected. Variations of the second property are also given.
Existence of Crystal Bases for Kirillov-Reshetikhin Modules of Type D
Masato Okado
Mathematics , 2006,
Abstract: We show that a crystal base exists for any Kirillov-Reshetikhin module of type $D_n^{(1)}$, generalizing the result of [(KMN)^2] for the end nodes of the Dynkin diagram of $D_n$.
Similarity and Kirillov-Schilling-Shimozono bijection
Masato Okado
Mathematics , 2015,
Abstract: The behavior of the Kirillov-Schilling-Shimozono bijection is examined under the similarity map on Kirillov-Reshetikhin crystals. It enables us to define this bijection over $\mathbb{Q}$. Conjectures on the extension to $\mathbb{R}$ is also presented.
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