• Title/Summary/Keyword: Multidimensional scale

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Multidimensional Scaling Analysis of the Proximity of Photosynthesis Concepts In Korean Students

  • Kim, Youngshin;Jeong, Jae-Hoon;Lim, Soo-Min
    • Journal of The Korean Association For Science Education
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    • v.33 no.3
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    • pp.650-663
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    • 2013
  • Multidimensional scaling can be used to identify relationships among concepts, revealing the structure of the cognitive framework by measuring distances within perceptual maps. The current study sought to examine the relationships among concepts related to photosynthesis in 2,844 $3^{rd}-11^{th}$ grade science students. The questionnaire included items on 'location,' 'products,' 'reactants,' and 'environmental factors', presenting images related to each theme. Students provided responses corresponding to particular topics, and reported the extent to which the concept was related to the topic on a scale from 1 to 30. The survey results were as follows: first, students were not able to clearly distinguish between or understand the four main topics. Second, students organized their cognitive structures by closely associating related concepts after learning. Third, the presented concepts revealed a mixture of scientific and non-scientific concepts, suggesting that students needed to clearly distinguish the preconceptions through which they organized concepts, so that they are suitable for cognitive structures based on learning. Furthermore, non-scientific concepts within perceptions were consistently maintained throughout learning, affecting the proximity of scientific concepts.

Development of College Students′ Condom Attitude Scale (대학생의 콘돔사용 태도 측정도구 개발)

  • 강희선;장순복
    • Journal of Korean Academy of Nursing
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    • v.34 no.5
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    • pp.751-759
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    • 2004
  • Purpose: The aim of this study was to design and evaluate a scale for measuring the attitudes toward condom use in sexual relationships. Method: A questionnaire was administered to 631 college students using a convenience sampling method. The psychometric properties (reliability and validity) were evaluated. Result: As a result of the item analysis, 16 items were selected and the internal consistency alpha coefficient was .88. Results indicated that the condom attitude scale is composed of three factors: Interruption of sexual pleasure; Protection; and Image. The three factors accounted for 59.54% of the variance in the total scale. Also, condom attitude was statistically significant (t=7.389, p=.000) between consistent condom users and inconsistent users. Conclusion: The results demonstrate that condom attitudes are multidimensional, and the reliability and validity of the scale was supported.

Node Distribution-Based Localization for Large-scale Wireless Sensor Networks (대규모 무선 센서 네트워크에서 노드 분포를 고려한 분산 위치 인식 기법 및 구현)

  • Han, Sang-Jin;Lee, Sung-Jin;Lee, Sang-Hoon;Park, Jong-Jun;Park, Sang-Joon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.33 no.9B
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    • pp.832-844
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    • 2008
  • Distributed localization algorithms are necessary for large-scale wireless sensor network applications. In this paper, we introduce an efficient node distribution based localization algorithm that emphasizes simple refinement and low system load for low-cost and low-rate wireless sensors. Each node adaptively chooses neighbor nodes for sensors, update its position estimate by minimizing a local cost function and then passes this update to the neighbor nodes. The update process considers a distribution of nodes for large-scale networks which have same density in a unit area for optimizing the system performance. Neighbor nodes are selected within a range which provides the smallest received signal strength error based on the real experiments. MATLAB simulation showed that the proposed algorithm is more accurate than trilateration and les complex than multidimensional scaling. The implementation on MicaZ using TinyOS-2.x confirmed the practicality of the proposed algorithm.

Social Support and Hopelessness in Patients with Breast Cancer

  • Oztunc, Gursel;Yesil, Pinar;Paydas, Semra;Erdogan, Semra
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.1
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    • pp.571-578
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    • 2013
  • Background: Patients with breast cancer can experience a feeling of hopelessness very deeply in the adjustment process, and the social support provided during this period can be effective in increasing the level of hope. The present study aimed to identify breast cancer patients' social support and hopelessness level. Materials and Methods: The target population of this analytical study was all breast cancer patients (total of 85) who had treatment in the oncology department of a university hospital located in Adana/Turkey and who met the inclusion criteria. Data were collected through "Personal Information Form", "Beck Hopelessness Scale (BHS)" and "Multidimensional Scale of Perceived Social Support" (MSPSS). Analysis was performed using Shapiro Wilk, One Way ANOVA Welch, Student t-test, Mann Whitney U, and Kruskall Wallis tests. Homogeneity of variance was tested with the Levene, Bonferroni and Games Howell tests. Mean scores and standard deviation values are given as descriptive statistics. Results: Average age of the participants with breast cancer is $48.6{\pm}10.6$. Of all the participants, 84.7% are married, 49.4% graduated from primary school, 81.2% are housewives, and 82.4% had children. The participants' multidimensional perceived social support total scores were found to be high ($57.41{\pm}13.97$) and hopelessness scale scores low ($5.49{\pm}3.80$). There was a reverse, linear relationship between hopelessness scale scores and social support total scores (r=-0.259, p=0.017). A statistically significant relationship was found between hopelessness scores and education level and having children, occupation, income status, and education level of spouses (p<0.05). Conclusions: The present study indicates that hopelessness of the patients with breast cancer decreased with the increase in their social support. Therefore, activating patient social support systems is of importance in increasing their level of hope.

The psychological consequences of indirect trauma exposure through the news on the Sewol ferry disaster (세월호 뉴스 노출을 통한 간접 외상의 심리적 영향)

  • Heung Pyo Lee;Yun Kyeung Choi;Jae Ho Lee;Hong Seock Lee
    • Korean Journal of Culture and Social Issue
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    • v.22 no.3
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    • pp.411-430
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    • 2016
  • The purpose of the present study was to examine psychological consequences of indirect trauma exposure through the disaster news. Participants(N=439) completed some self-report questionnaires such as Posttraumatic Risk Checklist(PRC), Impact of Event Scale-Revised(IES-R), and Multidimensional Fear of Death Scale(MFODS) at 68.11(±18.47) days after the Sewol ferry disaster. The data were analyzed with structural equation modeling by AMOS 23.0 program. The results showed that fear of death and periand post-traumatic crisis factors mediated the association of news exposure immediately after disaster and posttraumatic stress symptoms. Findings in this study indicated that news exposure immediately after disaster influenced fear of death which led to the peri- and post-traumatic crisis, and these crisis factors increased posttraumatic stress symptoms. Finally, limitations of this study and suggestions for future study were discussed.

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The Study For Clinical Measurement of Pain (통증(痛症)의 임상적평가법(臨床的評價法)에 관한 고찰(考察))

  • Shin, Seung-Uoo;Chung, Seok-Hee;Lee, Jong-Soo;Shin, Hyun-Dae;Kim, Sung-Soo
    • The Journal of Dong Guk Oriental Medicine
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    • v.8 no.2
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    • pp.25-46
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    • 2000
  • Pain can be evaluated by experimental methods and clinical methods, but due to subjective characteristics of pain, clinical methods are generally used. The clinical pain measurement tools are divided into unidimensional and multidimensional assessment tools. The former include Visual Analogue Scale, Verbal Rating Scale, Numerical Rating Scale, Pain Faces Scale, and Poker Chip Tool and the latter include McGill Pain Questionnaire, MMPI, Pain Behavior Scale, Pain disability index, and Pain Rating Scale. Unidimensional pain scales mainly measure the intensity of pain on the basis of the patient's self report and their simple construction and ease of use enable the invesgator to assess acute pain. Multidimensional pain scales are used to evaluate subjective, psychological and behavioral aspects of pain and because of its comprehensive and confidential properties they are applied to chronic pain. Patient's linguistic and cognitive abilities are major factors to restrain accurate assessment of pain. Although behavioral patterns and vital sign are inferior to self-report in the measurement of pain, they can be useful indexes in those situations. When deciding on a pain-assessment tool, the investigator must determine which aspect of pain he or she wishes to evaluate on the characteristics of the group of patients, their backgrounds, and their communication skills. Making the proper choice will facilitate the acquisition of meaningful data and the formulation of valid conclusions.

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Multidimensional body image, self-esteem, clothing benefits sought, and body image after breast cancer by the surgical subgroups among breast cancer survivors (유방암 생존자의 수술방법에 따른 다차원적 신체이미지, 자아존중감, 의복추구혜택과 수술 후 신체이미지에 관한 연구)

  • Lee, Eun Ok;Rhee, YoungJu
    • The Research Journal of the Costume Culture
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    • v.24 no.6
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    • pp.886-902
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    • 2016
  • This study investigated multidimensional body image, self-esteem, clothing benefits sought, and Body Image After Breast Cancer (BIABC) within surgical subgroups among breast cancer survivors. The study applied the questionnaire survey method and the main research was conducted through an online survey. The respondents included 207 breast cancer survivors between the ages of 30 and 59, each of whom received the Multidimensional Body-Self Relations Questionnaire (MBSRQ). Self-esteem, clothing benefits sought, examination, and demographic variables were measured using a 5-point Likert scale. The main results of this study are outlined below. For clothing benefit sought, six factors were formulated-pursuit of self-expression/social approval, function/health, compensation, femininity, fashion, and camouflage-and BIABC was defined by the four factors of body stigma/vulnerability, transparency, limitation and cancer concern. While MBSRQ and self-esteem did not show a statistically significant difference between groups differentiated by the surgical methods experienced, those who underwent mastectomies scored slightly lower than members of the other groups. Moreover, the reconstruction after mastectomy group showed the highest mean on self-expression/social approval, compensation, femininity and entire clothing benefits sought, followed by the lumpectomy group and mastectomy group. The lumpectomy group was found to have more positive BIABC than the mastectomy group. In particular, the mastectomy group showed a lower body stigma/vulnerability mean than the other groups. This study is meaningful in that it improves our understanding of the body image of breast cancer survivors and provides basic knowledge for developing products and marketing strategies for breast cancer survivors as consumers.

Coping Patterns in Chronic Low Back Pain : Relationship with Locus of Control and Self-Efficacy (만성 요통 환자의 대처 유형과 건강 통제위, 자기효능감과의 관계)

  • Kim, In-Ja;Lee, Eun-Ok
    • Journal of muscle and joint health
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    • v.2 no.1
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    • pp.1-16
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    • 1995
  • Coping patterns were investigated in a sample of 126 patients with chronic low back pain by means of self-reported questionnaire. Based on the previous researches, coping pat terns were divided into the active cognitive coping, the active behavioral coping, the passive cognitive coping, and the passive behavioral coping. While all the above coping patterns were used, the passive behavioral coping was found to be used most frequently. Six subgroups were identified by cluster analytic procedure using their scores of the coping scale : active cognitive coper, general active coper, passive behavioral coper, general passive coper, multidimensional coper, and multi dimensional non-coper. Six subgroups were compared regarding locus of control, self-efficacy, pain and demographic variables. Distinct differences appeared among subgroups in internal locus of control, self-efficacy, and pain. General active coper and active cognitive coper had higher internal locus of control, higher self-efficacy, and lower pain. General passive coper and multidimensional non-coper had lower internal locus of control, lower self-efficacy, and higher pain. Passive behavioral coper had higher internal locus of control, lower self-efficacy, and higher pain. It supports the concept of learned helplessness due to prior experiences. Multi dimensional coper had higher internal, higher powerful others, and higher self-efficacy. So it corresponds to 'believer in control' group Identified by Wallston et at(1982). Unexpectedly this group also complained more pain. It could be interpreted in two ways. The more coping methods they use, the more they complain pain ; which is the result of Folkman et al (1986). Or they might be typical 'yea sayers'. These unique groups-passive behavioral coper and multidimensional coper-identified by this study supports the suggestion of Wallston et al(1982), about locus of control : individual's pattern of responses across the three scales may be more predictive than his or her scores on each of the scale seperately. The fact that passive coping was used more than active coping also suggests that self controlled active co ping is encouraged to chronic patients as well as acute patients. And it is necessary to articulate the coping scale and self-efficacy scale. It is also necessary to study the relationship of coping and adjustment by experimental design.

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Validation of the Korean Version of the Lesbian, Gay, and Bisexual Identity Scale (한국판 동성애자/양성애자 다차원 정체성 척도 타당화)

  • Lee, Sojeong;Kim, Eunha
    • Korean Journal of Culture and Social Issue
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    • v.28 no.2
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    • pp.133-161
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    • 2022
  • The purpose of this study was to translate and validate the Lesbian, Gay, and Bisexual Identity Scale(LGBIS), which is a scale measuring the multidimensional identities of sexual minorities. For this, we conducted an exploratory factor analysis using a sample of 201 LGBs(homosexuals and bisexuals). Identical to the original scale, eight factors were extracted from the translated scale(i.e., concealment motivation, identity uncertainty, internalized homonegativity, difficult process, acceptance concerns, identity superiority, identity centrality, and identity affirmation), but one item was removed. In addition, the reliability coefficients of the eight factors except for concealment Motivation were satisfactory. The Confirmatory factor analysis revealed that the 8-factor model had a good fit to the data. Finally, to verify the criterion validity, correlation among each eight factor and the scales measuring the identity related scale and the psychological-functioning scale were analyzed. In conclusion, the Korean version of the LGBIS consists of 8 factors and 26 items in total. Also it was found to be a valid measure for LGBS in Korea as well.

Multidimensional Analysis of Unstructured Data and Trends in Architectural Review Opinions of Small and Medium-Sized Apartment Projects (다차원 분석방법을 활용한 중소규모 공동주택 건축심의 의견의 경향과 비정형 데이터로서의 특성분석)

  • Kim, Jinhee;Hwang, Taeeon;Kim, Jae-Sik;Huh, Youngki
    • Korean Journal of Construction Engineering and Management
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    • v.24 no.6
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    • pp.74-80
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    • 2023
  • This study examines the characteristics of architectural review opinions as unstructured data, focusing on the most challenging risk for developers of small and medium-sized apartment projects in response to the increasing number of single-person households in Korea. Using multidimensional analysis methods, the study analyzes the review opinions of 25 projects in B City. Correspondence analysis and MDS (Multidimensional Scale) analysis show that, consistent with prior research, the keywords related to 'structure' and 'planning' dominate architectural review opinions in B City. While the MDS model's stress is very poor at 34.4%, correspondence analysis reveals that this is due to the characteristics of unstructured data in architectural reviews. In addition, the non-structured data analyzed in this study, such as architectural review opinions, exhibited a probability distribution with low kurtosis and high skewness, as they involved various combinations and occurrences of data depending on the discretion of the review committee members and the specific formats of different local governments. This often led to the emergence of keywords that differed significantly from commonly mentioned terms. Although the study has some limitations, it provides a foundation for future detailed analysis by identifying the characteristics of architectural review opinions as unstructured data.