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The Effect of Peer Mentoring on Self-Efficacy in the 'Invention Technique and Practical Experience' Unit of the Technology.Home Economics Education (기술.가정과 '발명 기법과 실제' 단원에서 동료 멘토링 수업이 자아효능감에 미치는 영향)

  • Lee, Ji-Hyun;Lee, Yong-Jin
    • 대한공업교육학회지
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    • v.37 no.1
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    • pp.65-85
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    • 2012
  • This study focuses on the 'invention technique and practical experience' unit to observe how the colleague mentoring class has its effect on self-efficacy. For this, we have selected experimental group and comparative group and proceeded the experiment. For five classroom hours of the 'technique of invention and practical experience' unit, each group was assigned different method to do the experiment. The experimental group was applied with the colleague mentoring method and the comparative group was applied with the self study method. To observe the differences of how it effects on one's self-efficacy, the questionnaire was distributed before and after class. Then, it was verified for the meaningful differences between the two groups. To summarize, the results are as follows. First, for self-efficacy experiment, the questionnaire before the experiment showed that there were no differences found between two groups. However, the questionnaire collected after the experiment showed great differences. The group with the colleague mentoring showed more meaningful differences at p<.05 significance level than comparative group. Furthermore, by observing the before and after questionnaire, it was found that both groups showed statistically meaningful differences at p<.05 significance level, but the experimental group showed greater self-efficacy improvements than comparative group. Second, when further examining the self-efficacy, the activity start expectation, activity continuation expectation, activity performance expectation, and experience recovery expectation showed the statistically meaningful differences at p<.05 significance level. According to the above results, it can be stated that the colleague mentoring class has more positive effects on the self-efficacy than self-study class. Summing up, the colleague mentoring class is more effective than self-study for fostering student's self-efficacy.

Congruence in Leader and Follower Perceptions of Leader-Member Exchange: Relationships with Organizational Commitment and Perceptions of Organizational Politics (리더-구성원 교환관계에 대한 리더와 구성원 지각의 정합성: 조직정치지각과 정서적 조직몰입의 관계를 중심으로)

  • Park, Jae-Chun
    • The Journal of the Korea Contents Association
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    • v.16 no.11
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    • pp.240-252
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    • 2016
  • The purposes of this paper examines the extant to which congruence in leader and follower rating of LMX quality is related to organizational commitment, and perceptions of organizational politics(POPs). A conceptual model is introduced that identifies four combinations of leader and follower LMX ratings of Cogliser et al.(2009): balanced/low LMX(low leader and follower LMX), balanced/high LMX(high leader and follower LMX), follower overestimation(low leader LMX/high follower LMX), follower underestimation(high leader LMX/low follower LMX). The summary of results based on a sample of 236 matched pairs of leaders and followers in KOREA is as follows: First, balanced/high LMX and follower overestimation were associated with relatively high levels of affective organizational commitment, and perceptions of organizational politics. However, follower underestimation and balanced/low LMX was related to low levels of follower outcomes. In particular, follower underestimation and balanced/low LMX were significantly different from balanced/high LMX and follower overestimation. Second, perceptions of organizational politics was negatively related to affective organizational commitment in the four LMX relationship types. Especially, the negative relationship between POPs and organizational commitment was stronger for people who are low as compared with high in LMX quality. Theoretical and practical implications of our findings as well as directions for future research are provided.

A Study on the Activation Plan for the Participation in Citizen Participation Education by Types of Lifelong Education Participation : Focusing on Chungcheongnam-do (평생교육 참여유형별 시민참여교육 참여 활성화 방안에 관한 연구: 충청남도를 중심으로)

  • Jeong, Jae-Hun;Lim, Se-Young;Kang, Hyun-Jung
    • Journal of the Korea Convergence Society
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    • v.9 no.1
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    • pp.331-340
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    • 2018
  • This study used data from '2016 Chungnam Citizens' Lifelong Education Needs Survey'. This analyzed the basic situation of Citizen Participation Education. It also typifies the interest and participation intention of lifelong education by region, and compared the interest and participation intention of Citizen Participation Education. Through this, we intend to provide concrete basic data for activating the Citizen Participation Education in Chungnam. We analyzed data of 4,108 people in 2016 lifelong education needs survey. This was named enjoy learning type, bias earning type, and elderly learning type. Second, the enjoy learning type group is a group that enjoys participating throughout lifelong education area. bias earning type group is a group that perceives that lifelong education is limited to vocational ability education, culture art education, and liberal arts education. These are groups that are interested and participating only in three areas. The elderly learning type group is a group that shows typical characteristics of the elderly learners and is a group that is concentrated on participation in culture arts education. Third, enjoy learning type group is the second most experienced participant. They are the group with the highest participation interest and participation intention. bias earning type group is the group with the highest participation experience. They are also the second highest group of participating interests and willingness to participate. elderly learning type group is the group with lowest participation experience, participation interest, and participation intention. Finally, we suggest the ways to revitalize Citizen Participation Education in lifelong education.

Trajectory of Family Functioning: Self-esteem and Behavior Problems of Children (가족기능의 변화 양상에 따른 자녀의 자아존중감, 문제행동 차이)

  • Yeon, Eun Mo;Choi, Hyo-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.10
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    • pp.84-93
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    • 2020
  • This study had two aims (1) to explore the trajectory of family functioning (flexibility and cohesion) in the mothers' perspective and classify it according to the development of their child, and (2) to examine the differences in children's self-esteem as well the internal and external behavioral problems based on the latent groups. A total of 1,348 mothers and their children who participated in the survey in 2013 through to 2017 were analyzed. The group was subdivided into low incremental, average incremental, average-above incremental, and high unchanged groups according to the flexibility, and into low incremental, average incremental, decremental, high incremental, and above-high unchanged groups in terms of cohesion. From 2015 to 2017, the self-esteem of elementary school-age children showed differences depending on the flexibility and cohesion of family functioning; children in the high-unchanged group of flexibility and the above-high unchanged group of cohesion showed high self-esteem. Behavior problems of early childhood and elementary school-age children varied according to the latent classes of flexibility and the cohesion of family functioning. Children in low incremental and average incremental groups of flexibility and low incremental, average incremental, and decremental groups of cohesion showed more internal and external behavioral problems. These findings suggest that family functioning has significant effects on the psychological aspects of children.

A Biomechanical Comparative Analysis between Single-Radius and Multi-Radius Total Knee Arthroplasty for Sit-to-Stand Movement (앉았다 일어나는 동작동안 단축회전반경 무릎인공관절 수술자와 다축회전반경 무릎인공관절 수술자의 운동역학적 비교분석)

  • Jin, Young-Wan
    • Journal of Life Science
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    • v.16 no.5
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    • pp.773-779
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    • 2006
  • Eight of the individuals had a unilateral S-RAD TKA and Multi-Radius TKA ($Scorpio^{TM}$ PS, Howmedica-Osteonics, Inc.). The instrument were used Peak Motion Measurement $System^{TM}$, $MYOPAC^{TM}$EMG System, KIN-COM $III^{TM}$ System. The Figure 3 shows that the average time for the S-RAD group to accomplish the sit-to-stand movement was 1.59 s, which was 0.19 s less than the M-RAD group (p= 0.033). In Figure 5, the S-RAD TKA group tended to have $7^{\Omega}{\cdot}S^{-1}$ less trunk flexion velocity than that of the M-RAD group (p= 0.058). The Figure 6 shows that the S-RAD TKA limb tended to have less ADD displacement (p = 0.071) than that of the M-RAD TKA limb. We failed to find significant differences for ABD and ADD displacements between the S-RAD and M-RAD N-TKA limbs (p= 0.128 and 0.457, respectively). The VM of the S-RAD TKA limb demonstrated significant less RMS EMG than that of the M-RAD TKA limb from $60^{\Omega}$ to $15^{\Omega}$ of knee flexion (p 0.05). The VL of the S-RAD TKA limb also demonstrated significant less RMS EMG than that of the M-RAD TKA limb from $60^{\Omega}$ to $45^{\Omega}$ of knee flexion (p 0.05). Similar to the VM and VL, the RF of the S-RAD TKA limb showed less RMS EMG than that of the M-RAD TKA limb from $60^{\Omega}$ to $30^{\Omega}$ of knee flexion (p 0.05).

Geographic Variation in Needle Characteristics of Pinus densiflora in Korea (우리나라 자생 소나무의 지역에 따른 침엽특성 변이)

  • Shin, Chang-Ho;Kim, Kyu-Sick;Lee, Cheul-Ho
    • Korean Journal of Plant Resources
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    • v.20 no.4
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    • pp.336-341
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    • 2007
  • This study was carried out to investigate geographic variation in needle characteristics of Pinus densiflora, one of the most economically important tree species in Korea. Needles were collected from 35 natural populations and their morphological and anatomical characteristics were studied. ANOVA showed statistically significant differences among populations as well as among individuals within populations in needle length, needle width, number of stomata row, density of stomata in $0.25mm^{2}$, number of serrations in 0.5mm, and number of resin ducts. In all these traits, variance components among individuals within populations were larger than those among populations. The density of stomata in $0.25mm^{2}$ increased as the latitudes and elevations of the populations increased, while the number of serrations in 0.5mm decreased as the decrease of latitudes and elevations. The number of resin ducts was higher in inland populations than in coastal populations. The resin duct index appeared to be higher in western populations than in eastern populations. Cluster analysis based on morphological characteristics divided populations into three groups. The third group was composed of populations selected from the Taebaek mountains. The number of serrations in 0.5mm of this group was lower than that of other two groups, while the density of stomata in $0.25mm^{2}$ was higher.

Development of Social Work Strategies for School-linked services - Based on Latent Class Growth Analysis of Delinquent Behaviors in adolescence - (학교연계 서비스를 위한 사회복지실천 전략 개발 - 청소년기 경비행행동의 차별적 발달궤적에 대한 잠재계층성장분석 -)

  • Lee, Sang-Gyun
    • Korean Journal of Social Welfare Studies
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    • v.40 no.3
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    • pp.377-406
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    • 2009
  • This study used laten class growth analysis to identify discrete developmental patterns of delinquent behaviors in adolescence. This present article also examined associations among these trajectories to determine how the development of delinquent behaviors relates to protective and risk factors, which include parental monitoring, attachment with parent, association with deviant peers, self-control, and negative stigma from others. Four-wave panel data from a Korea Youth Panel Study were used for the latent class growth model analysis. The sample consisted of 3,446 adolescents who were assessed at 4 measurement waves with approximately 1-year interval. Four trajectories of delinquent behaviors emerged: delinquency persistence, delinquency increaser, delinquency decreaser, normative group(almost no delinquent behaviors). Association with deviant peers had the most proximal strong influence on the probability of being in the delinquency increaser and delinquency persistence group compared, noed to the normative group. Parental monitoring, self-efficacy and negative stigma also differentiated the four delinquent behavior trajectories from one another after controllig for socio-demographic variables. The study suggested that there is a significant heterogeneity in the timing and change rate of delinquency progression. Adolescent delinquency prevention and intervention programs will need to consider this heterogeneity and enhance attention to protective and risk factors depending on the subpopulation.

The Effects of Melodic Percussion Playing Group Program on Team Cohesion and Team Efficacy of Youth Soccer Players (선율타악기 연주중심 집단프로그램이 유소년 축구선수의 팀응집력과 팀효능감에 미치는 효과)

  • Kim, Heejin;Moon, Soyoung
    • The Journal of the Korea Contents Association
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    • v.19 no.9
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    • pp.558-566
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    • 2019
  • The purpose of this study is to fine out whether melodic percussion playing group program affects the team cohesion and team efficacy of youth soccer players. In this study fifty seven middle school soccer players were participated. The participants were assigned to either a melodic percussion playing group or a control group. In order to identify the effectiveness of music program, assessments were conducted using the team cohesion and team efficacy scales before and after the program. The results of comparison analysis through t-test are as follows. First, in the posttest of team cohesion between groups, the experimental group showed a significant difference over the control group. In the pretest and posttest examinations within a experimental group, the group also showed a significant difference. Second, in the posttest of team efficacy between groups, the experimental group showed a significant difference over the control group. In the pretest and posttest examinations within a experimental group, the group also showed a significant difference. These results of this study suggest that melodic percussion playing group program may be an effective intervention tool to improve team cohesion and team efficacy of youth soccer players.

Exploring the Latent Classes in Students' Executive Function Difficulty by Mother and Teacher: Multivariate Analysis across School Adaption and Academic Performance (초등학생의 집행기능곤란에 대한 어머니와 담임교사 평정에 따른 잠재집단 탐색 및 학교적응, 학업수행 차이 검증)

  • Yeon, Eun Mo;Choi, Hyo-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.6
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    • pp.38-47
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    • 2019
  • The purpose of this study was to identify latent classes in executive function difficulty of first graders depends on evaluations from their mother and teacher and to investigate how its related with their school adaption and academic performance in second grade. Based on the model of the latent profile analysis, the 8th and 9th wave data from Korean Children and Youth Panel Survey were analyzed. The results of this study were as following. First, results showed that there were three types of latent classes in the executive function difficulty depend on evaluations from their mother and teacher: 'low executive function,' 'students who were highly evaluated by mother,' and 'students who were highly evaluated by teacher.' Second, students' executive function difficulty had a direct effect on the students' school adaption and academic performance in their second year of school. Especially students who were evaluated as having the lowest executive function difficulty showed significant higher means than students who were evaluated higher by mother and teacher. This study emphasized the importance of multiple evaluation in students' executive function difficulty to provide an educational intervention.

Latent Profiles of Perceived Changes and Difficulties in Single-Parent Family: Focusing on Depression Level (한부모가 된 후의 변화 및 어려움에 대한 잠재프로파일 분석: 우울 수준의 차이를 중심으로)

  • Yeon, Eun Mo;Choi, Hyo-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.6
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    • pp.550-557
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    • 2021
  • This study examined the latent groups regarding the changes and difficulties after becoming a single parent and analyzed the differences in the backgrounds and depressive levels according to each group. The data of 2,500 single parents from the 2018 Single Parent Family Survey were analyzed by Latent Profile Analysis (LPA). LPA indicated four-profile groups: 1) parenting stability group, 2) normal group, 3) economic stability group, and 4) potential-risk group. Its determinants included gender and economic status, including government funding type and employment status rather than academic status. Specifically, female single parents with an unemployed or low-income support household were more likely to be linked to the potential-risk group. In addition, the potential-risk group showed a higher depressive level than the parenting stability group, normal group, and economic stability group. The significance of this study is that distinguished intervention based on the characteristics of each group can promote the effectiveness of single-parent family support policy.