• The Korean Journal of Community Living Science
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• v.19 no.3
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• pp.373-386
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• 2008

The purpose of this study was to examine the effects of parent-adolescent relationship and marital conflict perceived by adolescents on peer victimization. The subjects were 353 middle school students selected from two middle schools in the Incheon area. The instruments of research included the peer victimization index, the parenting behavior index, the parent-adolescent communication index, and the marital conflict inventory. The statistics used for this data were t-test, ANOVA, correlation analysis and multiple regression analysis. This study showed that middle school student's peer victimization was influenced significantly by the gender. Correlation analysis indicated that parenting behavior and peer victimization were significantly correlated. That is, oppressive, over protective and/or permissive attitudes of the parent were positively correlated with peer victimization. Intimacy and reasonable attitude were negatively correlated with middle school student's peer victimization. Also, parent-adolescent communication and peer victimization were significantly correlated. Especially, open communication was negatively correlated with peer victimization while problematic communication was positively correlated with peer victimization. Marital conflict perceived by adolescents was positively correlated with peer victimization. It was also found that gender, oppressive attitude, permissive attitude, open communication, and marital conflict were significant predictors of middle school student's peer victimization.

• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.375-383
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• 2010

The purpose of this study is to develop and apply the Blog-Based Co-op Co-op learning model to improve elementary student's Information Ethics Consciousness. For this goal, we have develope the Blog-Based Co-op Co-op learning model and verified its effectiveness. The developed model was applied to 5th and 6th elementary school students. Test was done for 6 sessions during 3 weeks. The developed model was applied to the treatment group and ordinary Co-op Co-op learning model was applied to the comparison group. We applied independent sampling t-test that can compare averages of two groups. As a result, the Bolg-Based Co-op Co-op learning model was significantly enhance student's Information Ethics Consciousness. We've analyzed student's Information Ethics divided into area, were significant in all areas.

• Journal of Korean Public Health Nursing
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• v.12 no.2
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• pp.149-171
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• 1998

This study attempted to find out a way which is to establish a desirable value and social culture related to sexuality. This study examined student's value and preference about sex and at the same time resolving method to correct ill-rooted value of male preference in our social culture. This study subjects consisted of 409 male and female students of a college located in Incheon area. The study data collected from June 5th to June 11th. 1998. Survey technique was chosen to collect data and analized by SPSS/PC+, SAS program using statistical methods of frequency. percent. $X^ 2-test$ and t-test. The study results are as follows ; 1) Sex satisfaction score of male students was higher than female students and the difference was significant statistically (p<0.0001). 2) There was a difference between male and female student's thought that our socity's structure has a sex discrimination. But female students felt strongly unequality of sex in our socity. 3) $65.4\%$ of total students have a general knowledge about sex and female student's score was higher than male students. The high percent of students get into know sex through mass media $(32.6\%)$ and peer groups $(31.9\%)$. 4) Student's attitude to sex was different from male and female students. Male students have more liberal attitude about sex than female students. 5) $97.1\%$ of the total students believe that our socity has son preference. 6) $86.5\%$ of the total students thought that sex ratio disproportion resulted from male preference is worriable problems in our socity. But there was no significant difference between both sexes.

• Bulletin of the Korean Mathematical Society
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• v.44 no.2
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• pp.265-270
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• 2007

The modern approach for wavelets imposes a Bayesian prior model on the wavelet coefficients to capture the sparseness of the wavelet expansion. The idea is to build flexible probability models for the marginal posterior densities of the wavelet coefficients. In this note, we derive exact expressions for a popular model for the marginal posterior density.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.11 no.1
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• pp.79-90
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• 2000

Objective：This study was performed in order to develop a measuring instrument for assessing and predicting delinquent behavior of the adolescents in Korea. Methods：This study was methodological research for developing a questionnaire for measuring delinquent behavior. Through the relevant literature review and personal interview using open-ended question with 12 adolescents in schools, outpatient basis and the juvenile corrective institutions, the author developed a pre-questionnaire with 31 items for assessing delinquent behavior among delinquentprone adolescents. Statistical method employed were test-retest reliability and Cronbach's alpha coefficient for testing reliability and factor analysis for testing validity of this questionnaire, and t-test for mean difference between student adolescents and delinquent adolescents, using SAS program. Subject served for this study consisted of 2,177 adolescents including 1,206 students and 971 delinquent adolescents by proportional stratified random sampling method. Results：1) Three stable factors were emerged and these contributed 52.2% of the variance in the total score. All 31 items loaded above .40 on each factor. 2) Factor I was named as antisocial delinquent behavior(17 items), factor II was named as aggressive delinquent behavior(8 items), and factor III was named as psychopathic delinquent behavior(6 items). 3) Comparison of these 3 factors between student adolescents and delinquent adolescents showed that there was a significant difference in factor Ⅰ(t=-42.91(student), -41.71(delinquent), p=.0001), factor II(t=-34.10(student), -35.72(delinquent), p=.0001), factor III(t=-14.24(student), -14.26 (delinquent), p=.0000), and total score(t=37.02(student), -36.38(delinquent), p=.0001). 4) Internal consistency reliability was tested by Cronbach's ${\alpha}$. Cronbach's ${\alpha}$ was .952 for total 31 items and .950, .866 and .721 for each 3 factors related to delinquent behavior. Conclusions：The author confirmed that this scale can use for measuring delinquent behavior, and hope to make a contribution to screening test and prevention of juvenile delinquency in Korea.

• Journal of Practical Engineering Education
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• v.5 no.2
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• pp.177-183
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• 2013

In this paper we investigate the history of the education based on STEM which is one of the topics of teaching method of Mathematics and Science oriented to the student, Hand-on education be applying partly to college education and the case of the education of the subject "Mathematics and Science for Engineering" of Japan's college. The educational method based on STEM make the student to recognize by themselves the necessity of the mathematics in the study of the technological and engineering problem, and furthermore draw a conclusion which is the proper method to change from passive to positive the study attitude for the mathematics. But it is more or less unreasonable to apply directly to college education with not physical fusion but chemical fusion of S (science), T (technology), E (engineering) and M (mathematics). Therefore we make themselves to find T and E considered at graduation works. We propose Pseudo-STEM teaching method linking this recognition obtained through self-activity to the mathematics subject.

• Journal of dental hygiene science
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• v.9 no.4
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• pp.387-395
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• 2009

The purpose of this study was to evaluate the actual state of middle and high school student's behavior about the use of oral hygiene devices for developing appropriate educational objectives to improve oral health. Data were collected by questionnaires from 445 middle and high school students in Jeolla-Bukdo, from April 20 to May 10, 2009. Surveyed data were analyzed by descriptive statistics, ${\chi}^2-test$ and t-test using SPSS V11.5 program. In the event of those who didn't use oral hygiene supplies, the largest group didn't use the devices since they didn't know about them well. Regarding links between experience of using oral hygiene devices and concern for oral health, those who received that education showed more interest in oral health, and the students who felt the need for that education had more interest than the others who didn't. The results of study suggest how to encourage students to utilize appropriate oral hygiene supplies and to help facilitate the development of school oral health education programs and the promotion of school oral health.

• The Journal of the Korea Contents Association
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• v.18 no.6
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• pp.414-423
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• 2018

The purpose of this study was to examine influences on grit in the nursing student. The data were collected from 146 nursing students in the H university located Y city. The data were analyzed by descriptive statistics, T-test, ANOVA, Scheffe, Pearson's correlation coefficient, and multiple regression with SPSS 20.0 program. Grit was found to be in a significant positive correlation with academic stress, academic self-efficacy and major satisfaction. The result of the multiple regression indicates the major satisfaction, academic self-efficacy, academic stress and grade point average predict 22.5% of grit. Therefore, it is necessary to develop an intervention program to strengthen the grit of nursing students.

• Journal of the Korean Institute of Intelligent Systems
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• v.21 no.6
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• pp.786-791
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• 2011

An optimal feature selection and extraction procedure is an important task that significantly affects the success of brain activity analysis in brain-computer interface (BCI) research area. In this paper, a novel method for extracting the optimal feature from electroencephalogram (EEG) signal is proposed. At first, a student's-t-statistic method is used to normalize and to minimize statistical error between EEG measurements. And, 2D time-frequency data set from the raw EEG signal was extracted using discrete wavelet transform (DWT) as a raw feature, standard deviations and mean of 2D time-frequency matrix were extracted as a optimal EEG feature vector along with other basis feature of sub-band signals. In the experiment, data set 1 of BCI competition IV are used and classification using SVM to prove strength of our new method.

• Journal of Korean Home Economics Education Association
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• v.6 no.1
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• pp.1-15
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• 1994

This study examined the relations between home-environment, mother´s vacational environment, vocational sense and the career maturity of their child in girls high school. Also the study tried to help the children find the proper vocation and to guide them in school. The subjects of this were 514 couples of mothers and their children in girl´s school (2nd grade) living in In-cheon. Statistics used for data analysis are Frequency, Percentage, One-way ANOVA, DMR(Ducn´s Multiple Range Test), T-test and Pearson´s correlation coefficient. The main results were as follows: 1. To think of the career maturity of child in home-environment variable, it differed significant-ly by mother´s standard of education and father´s vocation. 2. According to the mother´s vocational environment variablees, career maturity of child differed significantly by work-state the degree of vocational satisfication. 3. To think of the general tendency of mother´s view of vocation the attitude of choosing vocaion is independent whether mother has work or not. The attitude of work and sex-role is openhearted whether mother has work or not. The attitude of work-value is more important in the case of mother´s having work. The attitude of work-respect is formal in both case. In general whether mother has work or not there´s no difference in the mother´s vocational sense. 4. The corelations between the mother´s vocational sense and career maturity differed significantly by the attitude of chdoosing vocation. 5. The career maturity of high school student differed significantly whether they are commercial high school student or academic high school student. Based on the findings it is recommended the mother´s age the standard of education the degree of vocational satisfication and the view of vocation are more influenced on the child´s career maturity than the mother´s work itself.