• 제목/요약/키워드: 통제된 집단

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The Effect of Project Method on the Key Competencies on the unit of "Making Model by Architecture" in the Vocational High Schools (특성화 고등학교 '건축모형제작' 단원에서 프로젝트법을 적용한 수업이 직업기초능력 향상에 미치는 효과)

  • Hwang, Dong-Un;Choi, Ji-Yeon
    • 대한공업교육학회지
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    • 제37권1호
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    • pp.125-143
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    • 2012
  • This study aimed to identify the effect of the instruction applied with a project method for the 'Making Model by Architecture' unit in vocational High schools on the improvement of the Key competences. With this aim, the study selected as an experimental group, control group third graders in two classroom in G vocational High Schools in Goyang, Gyeonggi-do. Aiming at the selected students in the experimental group and the control group, the study conducted a pre-test of their Key competences; thus, the study confirmed that there was no statistically significant difference. Then, the study offered a class applied with a project method to the experimental group, while offering a traditional instruction to the control group. After offering the class, the study undertook a post-test, and verified the effect. In order to prove the test result, the study carried out a Hest using the SPSSWIN 12.0 statistical program, while the significance level being ${\alpha}$<.05. The conclusions obtained from this study include the following. All the six selected areas including 'problem-solving skills', 'communication skills', 'resource utilization competence', 'mathematical competence', 'interpersonal management competence' and 'self-management competence', which were supposed to be appropriate for this study among the sub-areas of Key competences, were found to show significant differences between the experimental group applied with a project method and the control group as a result of the post-test of the two groups. In summarizing the above research results, the class using a project method for the 'Making Model by Architecture' unit was discovered to be effective for improving Key competences. In particular, it may be more effective learning method for enhancing six areas greatly relevant to the project method among various sub-areas of Key competences.

Effects of Sex Education Program related to the Unit of Reproduction and Development on Middle School Boys' Sex-related Knowledge and Attitude towards Sex (생식과 발생 단원과 연계한 성교육 프로그램이 중학교 남학생들의 성지식 및 성태도에 미치는 영향)

  • Kim, Sun Young;Park, Su Bin
    • Journal of Science Education
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    • 제42권2호
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    • pp.148-164
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    • 2018
  • This study developed the sex education program based on the 'reproduction and development' unit of the middle school science, and examined its effectiveness on middle school boys' sex-related knowledge and attitude towards sex. The sex education program consisted of six topics of the structures and functions of generative organs, the importance of life, abortion, the human generation process, venereal diseases and AIDS, and responsibility of self-determination on sexual behavior. The results indicated that the experimental group demonstrated the statistically higher scores of the knowledge on sex than the control groups' scores, especially in the subcategories of 'pregnancy and delivery' and 'sex-related health'. However, both groups did not display any statistical difference on the attitude toward sex. In the subcategory of the attitude towards sex, the experimental group showed the statistically higher scores on 'self-determination and selection' and 'a health relationship'. In addition, the Pearson correlation results indicated the strongest relationship between the attitude toward sex and 'the self-determination and selection'. These results implicated that the sex education program related to the unit of reproduction and development in the middle school science helps the middle school boys develop the better knowledge and attitude towards sex.

The Effects of Weekly Reports as a Method for Encouraging Student Questions in Middle School Science Instruction (중학교 과학 수업에서 학생 질문을 촉진하는 방안으로서의 주단위 보고서의 효과)

  • Kang, Hun-Sik;Lee, Sung-Mi;Kwon, Eun-Kyung;Noh, Tae-Hee
    • Journal of The Korean Association For Science Education
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    • 제26권3호
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    • pp.385-392
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    • 2006
  • This study investigated the effects of weekly reports as a method for encouraging student questions in middle school science instruction by focusing on student conceptual understanding, achievement, concept map, and perceptions of weekly reports. Seventh graders (N=211) from a middle school were assigned to control and weekly reports (WR) groups. All students were taught about the 'three states of matter', the 'motion of molecules', and the 'change of states and thermal energy' for eighteen class hours. Students in the WR group were required to write weekly reports for six of those periods. Results revealed that conception test scores for the WR group were significantly higher than those for the control group. Compared conception test scores by learning strategy, students using a surface learning strategy in the WR group scored significantly higher than those in the control group. While students employing a deep learning strategy in the WR group also performed better than those in the control group, the difference was relatively small. The scores of an achievement test and a concept map test for the WR group were significantly higher than those for the control group. However, there were no significant interactions between instruction and students' learning strategy in the two variables. It was also found that most students in the WR group positively perceived weekly reports.

The Effects of Visual Organization and Cooperative Learning in Problem-Solving Strategy (문제 해결 전략에서 시각적 조직화와 협동학습의 효과)

  • Noh, Tae-Hee;Yeo, Kyeong-Hee;Jeon, Kyung-Moon;Kim, Chang-Min;Ahn, Choong-Hee
    • Journal of The Korean Association For Science Education
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    • 제20권4호
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    • pp.519-526
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    • 2000
  • In this study, the effects of visual organization and cooperative learning in problem-solving strategy were investigated. Three classes (N=127) at a high school were assigned to SV (Strategy-Visual organization) group, SVC (Strategy-Visual organization-Cooperative learning) group, and control group. After instructions, students' multiple-choice problem-solving ability, strategy performing ability, anxiety about chemistry learning, perception of involvement, and motivation to learning science were examined. Although multiple-choice problem-solving ability was not different significantly, there was a significant main effect in strategy performing ability. The scores of the SV and SVC groups were significantly higher than those of the control group, especially in the subcategories of problem understanding and recalling related principles. In the tests of perception of involvement and motivation to learning science, the scores of the SV and SVC groups were also significantly higher than those of the control group. However, problem-solving strategy using visual organization could not alleviate anxiety about chemistry learning.

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The Effect of Preferred Music Listening on Police Officers' Occupational Stress and Fatigue (선호음악 감상이 경찰공무원의 직무스트레스와 피로 감소에 미치는 영향)

  • Kim, Hye Jin;Kim, Eun Jew
    • Journal of Music and Human Behavior
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    • 제14권1호
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    • pp.41-62
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    • 2017
  • The purpose of this study was to examine the effect that preferred music listening had on police officers' occupational stress and fatigue. The musical intervention took place over a total of six sessions from October 11 to October 19, 2016. At each session, the experimental group (n = 19) received 20 minutes of music listening with individually customized playlists that were compiled based on their preferred music list. The control group (n = 21) simply took a break from work for 20 minutes. Every participant checked his or her occupational stress and fatigue level before and after the experiment using the Occupational Stress Inventory and Subjective Symptoms of Fatigue Test. The data were then analyzed by the SPSS 22.0 statistics program. To examine the homogeneity and pretest-posttest results between groups, an independent t test was conducted, and a paired t test was used to examine the pretest-posttest results within groups. The results confirmed all hypotheses. Findings support that the use of preferred music listening is an effective way to help police officers to control their occupational stress and fatigue. This study used a convenience sample and has limited generalizability. Future research should explore interactive approaches in music therapy as well as receptive music listening for alleviating police officers' occupational stress and fatigue.

The Influence of Time to Draw Students' Mental Models and Students' Field Dependence-Independence in Drawing in Relation to Learning with Multiple Representations (다중 표상 학습에 적용한 그리기에서 학생들의 정신 모형을 그리는 시기 및 장의존성.장독립성에 따른 효과)

  • Kang, Hun-Sik;Kwack, Jin-Ha;Noh, Tae-Hee
    • Journal of The Korean Association For Science Education
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    • 제26권2호
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    • pp.191-199
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    • 2006
  • This study investigated the influence of time to draw students' mental models and students' field dependence-independence on learning the particulate nature of matter with multiple representations. Seventh graders (N=295) at two middle schools were assigned to control, after-drawing, and before-drawing groups. The students learned "Boyle's Law" and "Charles's Law" for two class periods. Results revealed that the scores of a test on conceptual understanding for the two drawing groups were significantly higher than those for the control group. However, there was no significant interaction between the instruction and students' field dependence-independence in the scores of the test on conceptual understanding. In 'novelty' on a situational interest test, field independent students in the two drawing groups scored significantly higher than those in the control group. The scores for field independent students in each group were similar, while field dependent students in the before-drawing group scored lower than those in the control and after-drawing groups in 'attention demand' on the situational interest test. It was found that most students positively perceived after-drawing or before-drawing, but field independent students in the before-drawing group were more apprehensive about the activities than those in the after-drawing group.

The Relationship between Parental Psychological Control and Adolescent School Adjustment : Hope as a mediator (부모의 심리적 통제와 청소년의 학교적응 간의 관계 : 희망의 매개효과를 중심으로)

  • Oh, Youn-Kyung;Lim, Jung-Ha
    • Journal of Korean Home Economics Education Association
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    • 제29권3호
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    • pp.1-14
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    • 2017
  • The purpose of this study was to investigate the relationship between parental psychological control and adolescent school adjustment mediated by hope of adolescents. Four hundred three middle and high school students participated in this study. The data were analyzed using descriptive statistics, t-tests, Pearson's correlations, structural equation modeling(SEM), and multi group analysis. The average level of school adjustment was significantly higher in male adolescent group compared to female adolescent group. Adolescents' hope partially mediated the relationship between parental psychological control and adolescents' school adjustment. The proposed model was not significantly different as a function of gender. These results suggest that adolescents' school adjustment could be improved by reducing levels of parental psychological control and enhancing adolescents' hope.

A prospective study on early English education and Korean children's English proficiency: When cognitive, personality and parental factors are controlled (조기영어학습이 유아의 영어능력에 미치는 영향: 인지, 성격, 부모요인을 통제한 전향적 연구)

  • Kim, Geunyoung;Kim, Yoo Ree;Park, Hyekyung;Kim, Gahee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제17권11호
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    • pp.552-562
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    • 2016
  • Although a number of studies have been conducted in Korea since 2000 on the impact of early English education, their interpretation is still not conclusive, due to their lack of control groups and failure to control for third factors and use valid measurements. The present study was designed to examine the effect of an English education program on young children's English proficiency after 8 months using the most well-known official English proficiency measure, the WIDA for kindergarteners. In addition, the children's Korean language proficiency, cognitive abilities, personality, parents' SES, and parents' attitudinal variables before the education were measured and controlled. The results indicated that the intervention group performed better than the control group in both listening and speaking skills, even when all relevant factors were considered. This effect, however, was only found in the item-level analyses.

The Variables Affecting the Internet Overuse of Adolescents - An Analysis by Gender, School Grades and School Systems - (청소년의 인터넷 과다 사용에 영향을 미치는 변인 - 청소년의 성, 학교, 계열별 분석 -)

  • Lee, Kyung-Hwa;Ryu, Kyung-Hee
    • Journal of Korean Home Economics Education Association
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    • 제23권2호
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    • pp.71-87
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    • 2011
  • In this study, we investigate the individual-, parents-, and family-related variables affecting the internet overuse of adolescents by the gender, school grades and school systems, which is based on surveys of 480 students in the middle and high school, employing multiple regression analysis. Major findings are as follows. 1. In the case of male students, internet use was higher when the students are playing online games more often, when the students are under stress, or when they have lower self control. In the case of female students, internet use was higher when the students are playing online games more often or when the students are visiting pornographic sites more often. 2. In the case of middle school students, internet use was higher when the students play online games more often, when they use file downloads more often, when they have lower self control, or when they have parents who are setting lesser rules on the students' internet use. In the case of high school students, internet use was higher when they play online games more often, when they engage in internet club activities more actively, when they have lower self control, when they use e-mails less frequently, when they have fathers with better internet ability, or when they are under parents' strict control. 3. In the case of academic high school students, internet use was higher when they play online games more often, when they engage in internet club activities more actively, when they visit pornographic sites more often, when they have lower self control, when they have mothers with poor internet ability, when they use e-mails less frequently, or when they have fewer number of close friends. In the cases of vocational high school students, internet use was higher when they play online games more often, when they are under more stress, when they get better grades, when they have fathers with better internet ability, when they are under parents' strict control, or when they have lower self control.

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The Effects of the Forest Environment on Internet Addition Treatment (숲 환경이 인터넷 중독 치료에 미치는 효과)

  • Oh, Chang-Hong;Park, Sang-Gyu;Park, Jung-Hwan;Oh, In-Ja
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제17권4호
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    • pp.489-499
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    • 2016
  • This study examined the effects of a forest environment on internet addition and the self-esteem of internet-addicted adolescents. For comparison, the same group counseling programs were conducted in a classroom not in the forest. Twenty-four second grade students from a Middle School in S-city were grouped with 8 members in each group. Each group joined this program 6 times. The group results were then compared over a follow-up period. The dependent variables were the internet addiction scores and self-esteem scores. In the research results, the experimental group that undertook this program in the forest environment showed significantly different internet addiction scores compared to the control group immediately after the program and during the follow-up period. According to the period, the experimental group showed a significant difference in the internet addiction scores compared to the previous scores, immediately after the program and during the follow-up period. The comparison group showed no significant difference compared to the control group immediately after the program and during the follow-up period. The program in the forest environment showed a significant difference in the self-esteem scores compared to the comparison group and the control group immediately after the program and during the follow-up period. The self-esteem scores of the experimental group increased significantly compared to the comparison group and control group. In addition, the self-esteem scores of the comparison group also increased significantly, compared to the control group. The self-esteem scores of the experimental group also increased significantly, compared to the previous scores, immediately after the program and during the follow-up period. These results suggest that a natural environment, such as a forest, has therapeutic effects on decreasing the addiction symptoms' of internet addiction adolescents and also helps raise their self-esteem. Nevertheless, more study will be needed to verify what effects the forest environment have on the therapeutic mechanism on various addicts. Lastly, the constraints and implications of this research are described.