• Title/Summary/Keyword: 무작위 통제 실험

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The effect of the 1:1 coaching and the example ideas with the GROW model on the creativity of new product development ideas (GROW모델을 활용한 1:1 코칭과 예시 아이디어가 신제품 개발 아이디어 창의성에 미치는 영향)

  • Hwan, Hyeonhee;Jung, Moon-Sun;Kim, KunBae;Kim, BooMin
    • The Korean Journal of Coaching Psychology
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    • v.5 no.2
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    • pp.1-24
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    • 2021
  • This study is an experimental study to examine the effect of the 1:1 coaching and example ideas with the GROW model on the creativity of new product ideas. Participants were composed of 32 adults who did not know coaching and were not related to new product development-related industries, and the experiment was randomly assigned to 1:1 coaching group, example idea group, and control group. The ideas answered by the participants were evaluated by measuring novelty, appropriateness, and willingness to pay after the experiment, and 30 experimental data and 3 expert group evaluation data were used for the final analysis. As a result of the study, the 1:1 coaching using the GROW model had a significant effect on the creativity of new product ideas, and in particular, had a positive effect on novelty. The example idea group received the lowest score among the three groups, including the control group, in novelty and suitability, and was found to have a negative effect on idea creativity. Based on these results, implications and limitations for the use of coaching in the work or situation of presenting creative ideas were discussed, and suggestions for follow-up studies were made.

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A Study on the Effect of the 'Empowering Youth Program' ('청소년의 힘 북돋우기 프로그램'의 개발과 효과연구 - 창의적 사고를 통한 중학교 기술$\cdot$가정 교과의 '나와 가족의 이해' 단원 학습)

  • Chung Ock-Boon;Kim Kyoung-Eun;Park Youn-Jung
    • Journal of Korean Home Economics Education Association
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    • v.17 no.3 s.37
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    • pp.17-33
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    • 2005
  • The present study attempts to develop the 'Empowering Youth Program' to enhance adolescents' creativity to address a variety of social and relationship issues and verify the effect of the program. The program consists of 12 sessions and each session employs a variety of activities and teaching methods to engender the students' interest. The subjects of this study were 262 middle school students in Seoul and Kyoun99i province. They were randomly assigned to the experimental group and the control group. Several independent t-tests and ANCOVAs were performed for data analyses. The results of the analyses indicated that the 'Empowering Youth Program' was effective in both promoting adolescents' educational performance and enhancing their creativity. Furthermore, the program was found to be very effective in helping adolescents understand themselves, peers, and family members much better.

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The effect of prone pelvic blocking on hamstring muscle relaxation and sacral movement (엎드린 자세에서의 다리이음뼈 블록중재가 넙다리뒤근육 이완과 호흡시 엉치뼈 움직임에 미치는 영향)

  • Cha, Kyung-Su;Kim, Ka-Eun;Jung, Ki-Hun;Jung, Seung-Eun;Park, Soon-Kwon;Cho, Il-Young
    • Journal of Digital Convergence
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    • v.10 no.10
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    • pp.397-404
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    • 2012
  • The purpose of this study is to investigate the change of hamstring muscle relaxation and craniosacral reciprocal movement by using S. O. T. (sacrooccipital technique) categoryⅠ block-intervention process. 26 subjects with heel tension were randomly divided into two groups (EXP=13 and CON=13). This study carried out the category I block-intervention process on the experimental group and the false block-intervention process on the control group. Then, this study measured the sit-and-reach and sacral reciprocal movement of subjects before and after the intervention. The result values before and after the intervention were analyzed through ANCOVA by using SPSS PC Program (Ver. 20.0). In both investigations, the degree of hamstring muscle relaxation and the change of sacral reciprocal movement, there were statistically significant differences between the experimental group and the control group as [F(1, 23)=7.73, p<0.5] and [F(1, 23)=7.07, p<.05] respectively. According to the results of this study, it is expected that S. O. T category I bllock-intervention technique will have positive effect on both hamstring muscle relaxation and craniosacral reciprocal movement.

Form-Focused Instruction, Learners' Perceptions, and Second Language Acquisition (형태초점교수활동, 학습자의 인식도, 그리고 제2언어습득)

  • Hwang, Hee Jeong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.10
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    • pp.6475-6482
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    • 2015
  • The purpose of the study was two folded: to examine whether form-focused instruction (FFI) with corrective feedback (CF) is effective for the acquisition of the target linguistic forms and to find out the extent to which of the students' perceptions as well as their attitudes towards English instruction that they received. Tests and questionnaires were implemented to 122 Korean EFL students from eight classes enrolled in an English communication course. They were randomly assigned to three groups: the input-based group, who received typographical input enhancement materials, so-called the TIE group, the output-based group, who performed dictogloss tasks, so-called the DICT group, and the control group (CG). The data analysis was made on both tests and questionnaires by using SPSS 21.0 for Windows. The study found that different types of FFI with CF contributed to the improvement of students' grammatical knowledge and both the TIE and DICT task group students positively changed their perceptions and understanding as well as their attitudes towards the English instruction given, and students in all groups preferred pair work activities. In addition, most of the TIE and DICT students showed their interest and satisfaction with English class, whereas the CG group students did not. Based on the findings, this study suggested that well-planned and properly-chosen FFI in the form of pair work activities should be applied in classrooms with consideration of students' instructional preference in Korean EFL contextual settings.

Effectiveness of Smartphone Addiction Intervention for University Students: A Systematic Review and Meta Analysis (대학생 스마트폰 중독 중재프로그램의 효과: 체계적 문헌고찰 및 메타분석)

  • Kwon, Myung Soon;Han, Suk Jung;Yeun, Young Ran
    • Journal of the Korea Convergence Society
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    • v.11 no.5
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    • pp.399-412
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    • 2020
  • This study aimed to evaluate the effectiveness of smartphone addiction interventions among university students. Selection criteria included university students, smartphone addiction interventions, smartphone addiction, depression, anxiety, self-control and time of smartphone usage. A total of 915 articles were retrieved. From those, 15 studies from 13 articles fulfilled the inclusion criteria. A meta-analysis showed that smartphone addiction interventions undergone by university students had statistical significance in alleviating smartphone addiction (d=-1.57, 95% CI:-2.84, -0.30), depression (d=-3.73, 95% CI:-4.97, -2.48), and self-control (d=7.28, 95% CI:2.76, 11.79); but were not significantly effective in improving anxiety and reducing time of smartphone usage. The systematic review and meta-analysis suggested that smartphone addiction interventions boost the alleviation of smartphone addiction. However, it remains necessary to conduct well-designed randomized controlled trials, including the consideration of various cultural characteristics.

The Finnish and Dutch Basic Income Experiments: A Methodological Review (핀란드와 네덜란드 기본소득 실험의 방법론적 의미와 한계, 그리고 시사점)

  • Roh, Jungho
    • 한국사회정책
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    • v.25 no.1
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    • pp.71-96
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    • 2018
  • Globalization, deindustrialization, and the revolutionary development of technology has led to the concerns that existing social policies might not be fit for the current and upcoming society. At the same time, the idea of universal basic income has drawn significant attentions as the alternative to the old welfare state. There are pros and cons of basic income, and scholars of both sides stand against each other with their equivalently strong logics. In this situation, some governments have planned or conducted field experiments in order to estimate the causal effects of basic income. This study explores the Finnish and Dutch basic income experiments in methodological perspective. All the World have been watching the experiments in these two countries with keen interest. The results of these experiments will surely influence on the pros and cons of basic income in numerous countries, including South Korea. It is important to precisely figure out the methodological meanings and limitations of the experiments, for the experiments in both countries deal with only some partial components of basic income and have been exposed to many threats to internal validity. Therefore, scholars for and against basic income should be careful in interpreting the findings from these experiments. This study elucidate the methodological meanings and limitations of the Finnish and Dutch basic income experiments. Furthermore, this study extracts some lessons from these experiments that would be useful if scholars would have an opportunity to design and conduct a basic income experiment in South Korea.

Counseling on Astrology on the Self-awareness Change of Youth at Risk (아스트롤로지를 활용한 상담과 위기 청소년의 자기인식 변화)

  • Lee, Young-Suk;Park, Sun-Sook
    • The Journal of the Korea Contents Association
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    • v.14 no.11
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    • pp.272-284
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    • 2014
  • This study is to reveal the significant value of astrology as a counseling tool beyond its unscientific means in prophecy and counseling effects on changes in adolescents' self-awareness with astrology. In astrology, personal self-awareness is related to the nature of the sun and the public self-awareness is associated with ascendants, or the persona. In addition, the location of the moon that governs emotion and basic and peripheral aspects of polarity, quality, and elements are analyzed to be applied to the scene of consultation in relation of social unrest. For this study, 24 subjects were selected randomly at the Youth Support Center in Gyeongsangnam-do city C who referred to be showing social maladjustment, problematic behaviors and so under probation. The subjects were divided into the experimental group (12) and control group (12). To measure the affects of astrology-utilized consultation and to assess changes of self-awareness and its sub-factors, analysis of variance was conducted repeatedly and statistically validated with the difference between the group (experimental, control) and test(pre, post). As the results, it was proven that the consultation using astrology is affective on increasing adolescents' self-awareness and it can be understood that astrology has a meaningful value as a consultation tool in the aspects of social science.

Latent causal inference using the propensity score from latent class regression model (잠재범주회귀모형의 성향점수를 이용한 잠재변수의 원인적 영향력 추론 연구)

  • Lee, Misol;Chung, Hwan
    • The Korean Journal of Applied Statistics
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    • v.30 no.5
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    • pp.615-632
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    • 2017
  • Unlike randomized trial, statistical strategies for inferring the unbiased causal relationship are required in the observational studies. The matching with the propensity score is one of the most popular methods to control the confounders in order to evaluate the effect of the treatment on the outcome variable. Recently, new methods for the causal inference in latent class analysis (LCA) have been proposed to estimate the average causal effect (ACE) of the treatment on the latent discrete variable. They have focused on the application study for the real dataset to estimate the ACE in LCA. In practice, however, the true values of the ACE are not known, and it is difficult to evaluate the performance of the estimated the ACE. In this study, we propose a method to generate a synthetic data using the propensity score in the framework of LCA, where treatment and outcome variables are latent. We then propose a new method for estimating the ACE in LCA and evaluate its performance via simulation studies. Furthermore we present an empirical analysis based on data form the 'National Longitudinal Study of Adolescents Health,' where puberty as a latent treatment and substance use as a latent outcome variable.

The Effect of Group Validation Therapy(V/T) in the Elderly with Dementia (집단인정치료(Group validation therapy)가 치매노인에게 미치는 영향에 관한 연구)

  • Chang, Woo-Shim
    • 한국노년학
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    • v.28 no.4
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    • pp.1023-1039
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    • 2008
  • The purpose of this study was to develop a group validation therapy(V/T) which could be implemented for the elderly with dementia in nursing home, and to evaluate the effectiveness of the program on cognition, ADL(Activity of Daily Living), depression, problematic behavior and QOL(Quality of Life). Subjects were recruited from 4 nursing homes in D city. The sample comprised forty elderly with dementia, capable of verbal communication. Each twenty were in an experimental and control groups. However, four elders with dementia dropped out in experimental and control groups due to personal affairs. Experimental group completed twelve consecutive group validation therapy sessions that combined centering, asking factual questions, rephrasing, identifying and using the preferred sense, asking the extreme, imagining the opposite, reminiscing, touching, maintaining eye contact and a caring tone of voice, observing, matching and expressing the emotion with emotion, using ambiguity, linking behavior with a basic human need, using music and mirroring techniques. Following the intervention, experimental group experienced a significant improvement in cognition, ADL, depression, and QOL. But it is a nonsignificant in problematic behavior on statistically. As a result, a group validation therapy should be applied as an effective and practical psychosocial intervention for the elderly with dementia.

The Effect of Forest Therapy Program on Stress Reduction in Middle-aged Women (산림치유 프로그램이 중년 여성의 스트레스 저감에 미치는 영향)

  • Yong-Koo Jung;Won-Soep Shin
    • Korean Journal of Environment and Ecology
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    • v.37 no.6
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    • pp.464-472
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    • 2023
  • Middle-aged women experience a lot of physical and mental stress during their developmental cycle. This stress reduces the quality of life because it leads to chronic pain and disease. Forest therapy is attracting attention as an alternative to this. Forest therapy refers to improving human health through the therapeutic elements of forests. Accordingly, this study was conducted to determine whether a sensory insight-based forest therapy program was effective in reducing stress in middle-aged women. For this purpose, middle-aged women who wanted to participate in the forest therapy program were recruited, 20 each were randomly assigned to an experimental group and a control group, and pre- and post-tests were conducted. The forest therapy program consisted of 8 sessions of 6 hours based on sense and insight. The forest therapy program was held at Saryeoni Forest in Jeju, and the measurement tools were compared by measuring perceived stress, leisure satisfaction, and stress index through pulse wave testing. The results of the study showed that the forest therapy program lowered stress and improved leisure satisfaction.