• Title/Summary/Keyword: multivariate analysis of variance (MANOVA)

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Elementary School Children's Environmental Literacy and Affecting Variables (초등학교 저학년 학생들의 환경소양 및 환경소양에 영향을 미치는 변인)

  • Chu Hye-eun;Lee Eun-a;Ko Hee-ryung;Shin Dong-hee;Lee Moon-nam
    • Journal of Korean Elementary Science Education
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    • v.24 no.3
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    • pp.310-320
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    • 2005
  • The purpose of this study was to investigate young children's environmental literacy level and variables that affected their environmental literacy. Of the students, 969 in third grade from big cities, medium sized cities and rural areas participated in this study, and their environmental literacy was measured through 69 questions consisted of 24 items for knowledge, 22 for attitude, 16 for behavior, and 7 for skills with 13 demographic variables. Eighty minutes were given to answer the questions. Statistical analysis was conducted on each of the categories (knowledge, attitude, behavior, skill) that make up environmental literacy and multivariate analysis variance (MANOVA) was also conducted to investigate variables that affect environmental literacy. Results indicated that the correlation between attitude and behavior is the highest. Also, it was found that a demographic variable might affect one, two, or sometimes all categories of the environmental literacy.

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The Relationships between the Parental Attitude types and Adolescents' Adaptation to School (지각된 부·모의 양육태도 유형과 청소년의 학교생활적응 간의 관계)

  • Kim, Jong-hee;Kim, Eun-hyang
    • Journal of Digital Convergence
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    • v.15 no.3
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    • pp.353-363
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    • 2017
  • The purpose of this study is to investigate whether there are differences in adolescents' school adaptation according to the types of perceived parental attitudes and consistency. For this purpose, 586(306 girls) middle and high school students were surveyed about their perceived parental attitudes and school adjustment, and the differences were verified through multivariate analysis of variance (MANOVA). The results showed that the adolescents' school adaptation was different according to the types of parental attitudes. Affection - autonomy cohort group's school adjustment was significantly higher than the other groups. In addition, the hostility - control group were found to have lower adaptation level than the disagreement group. Based on this results, we discussed the importance and influences of parental attitude and suggested the directions of follow up studies on parenting attitude and adaptation.

A Study on the Koryoin Larchiveum Space Construction Model (고려인 라키비움 공간구축 모형에 관한 연구)

  • Hyunji Park;Wookwon Chang
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.34 no.3
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    • pp.183-204
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    • 2023
  • The purpose of this study is to present a construction model of Koryoin Larchiveum that considers the space and function of larchiveum, centering on the Koryoin Historical and Cultural Center. To this end, a survey was conducted targeting librarians, archivists, and curators, and multivariate analysis of variance (MANOVA) was conducted to find out the average difference between space and work requirements by institution. In addition, based on the survey, in-depth interviews were conducted with secondary experts (directors, representatives, Koryoin experts, etc.) on spatial components. As a result, first, spatial and functional elements set mainly for functions necessary for Koryoin Larchiveum were derived. Spatial elements include storage, reading rooms, and resting areas for libraries, archives storage rooms and exhibition rooms for archives, and storage and exhibition rooms for cultural centers. Functions (work) were represented by 4 elements: library 3, archives 5, and cultural center. Second, after reviewing the interview, the Koryoin Larchiveum construction model was modified and supplemented. As for the spatial composition, the installation space, work contents, and manpower in charge were presented from the first basement floor to the third floor above the ground.

A Study on Improvement Plan of City Bus Kindness Service (시내버스 친절서비스 향상 방안에 대한 연구)

  • Lee, Jeong Hun;Jung, Hun Young;Shin, Kangwon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.37 no.2
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    • pp.369-377
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    • 2017
  • The city of Busan implemented the 'Bus Quasi-Public Operating System' as a part of the Public Transit Activation Policy. Although the reorganization of routes and fares had temporarily increased the number of passengers, it is facing a downtrend currently. This implies the limited capability of increasing the use of the city buses only by adjusting the systematic components of the system. Thus, the research aims to analyse the effect of improving the 'kindness service' as an alternative way to vitalize the use of city buses. The analysis uses the survey encompassing sixteen 'kindness service' factors that was collected from the passengers and the drivers of the city buses in Busan, and some of the notable findings are followed. According to the analysis of determining the level of importance on the 'kindness service' factors, four major categories were derived; a category to maintain/reinforce the kindness service, a category to make incremental improvement, a category to encourage improvement, and a category to make focusing improvement. Using the categories, the study then performed the cluster analysis on 33 city bus companies in Busan to determine the differences between the companies. Consequently, the companies were grouped into four; two groups (14 companies) showing more importance on the kindness service while the other two groups (19 companies) showing less. In addition, multivariate an analysis of variance (MANOVA) identified the significant differences of the four categories among the groups of companies, and the findings were taken into consideration on further improvement plans of kindness service in the city buses of Busan.

A Study on In-line Skate Clothing Interest of In-line Skaters (인라인스케이터의 인라인스케이트 의복흥미 연구(Ⅱ))

  • Jung, Tae-Jin;Yoo, Tai-Soon
    • Fashion & Textile Research Journal
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    • v.6 no.6
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    • pp.731-739
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    • 2004
  • As the life styles have been changed in modern society and sports gave been emphasized for spending spare time and improving health condition, sports are regarded to lave a leading role to fashion as one of the prominent factors. This study is to analyze the gender-identity and how different levels of involvement in In-line skating affects clothing interests. 291 In-line skaters ranged in age from middle twenties to middle thirties were surveyed and measured for this study. MANOVA(multivariate analysis of variance), ANOVA(univariate analysis of variance), Cronbach ${\alpha}$ reliability, t-test, and correlation analysis were performed with SPSS 10.0 program on the selected data. The results of this study are as follow. There were no obvious differences in In-line skating clothing interests by gender of In-line skaters. There were, however, differences in the reasons for In-line skating, the hours to skate per week. Those whose purpose for skating was diet had more interest in style focused on expression. In case of skating for health, they showed interest in activity-functionality style and anti-deviation style. The group of In-line skaters who skated 15 to 18 per week gave more interest in activity-functionality style out of the clothing interest-factors. Those who had strong masculinity in gender-identity of In-line skaters were more involved in In-line skating. There were some differences in clothing interests according to gender-identity of In-line skaters. In regard of In-line skating clothing interest by involvement in In-line skating, those who had higher involvement in In-line skating had higher In-line skating clothing interest.

Impact of Topsoil Stockpiling Methods on the Viability of Seed Banks

  • Yi, Myung-Hoon
    • Journal of Environmental Science International
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    • v.27 no.10
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    • pp.907-923
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    • 2018
  • The aim of this study was to determine the appropriate stockpiling methods for revegetation by comparing the germination status of seed banks before and after preservation for 2 years. Soil temperature in stockpiled topsoil was higher in open treatment and at 1.5 m, whereas soil water content was maintained at lower levels (14.06-19.08%), than those in the control group. The seed banks in stockpiled topsoil had 48 species and 1,559 individuals, among which perennials showed the highest number in terms of life forms, whereas Compositae and Gramineae were dominant in terms of families. Based on seed bank type, persistent seed banks had the highest number of species, while transient seed banks had the highest number of individuals. By stockpiling period, the number of species in the seed bank started to increase after 24 months, while the number of individuals began increasing after 12 months and exceeded that of the control group after 24 months. Regarding the treatment of stockpiling methods, the number of species and individuals in open treatment were closer to those of the control group. When analyzed by height, the number of species and individuals were higher at 0 m, but still lower than those of the control group. A multivariate analysis of variance (MANOVA ) showed that the optimal combination was obtained in open treatment and the number of individuals increased with the lengthening of the stockpiling period.

The Effect of Different Elastic Tape Expansibilities on the Onset Time of Muscle Contraction during Neck Extension for Forward Head Posture Syndrome (목 폄 시 탄력성 테이프의 신장력 차이가 전방머리자세 증후군의 근수축 개시시간에 미치는 영향)

  • Yoon, Jung-Gyu
    • PNF and Movement
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    • v.20 no.3
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    • pp.331-340
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    • 2022
  • Purpose: Thisstudy aimed to identify the effect of varying the expansibility of elastic tape on the onset time of muscle contraction during neck extension for forward head posture syndrome. Methods: Forty-five young adults with forward head posture syndrome volunteered to participate and were randomly assigned to one of three groups according to the expansibility of the elastic tape (25%, 50%, 75%). The onset time of muscle contraction for the neck extensor during neck extension was measured using an electromyographic system (Free EMG, BTS, Italy). Multivariate analysis of variance was employed to determine the effect of different expansibilities of elastic tape on the onset time of muscle contraction during neck extension for forward head posture syndrome. When there was a statistically significant difference by MANOVA, Scheffe was used as a post-hoc test. The level of significance was set at α=0.05. Results: In the comparison of the onset time of muscle contraction of varying elastic tape expansibilities and measurement times, there was a significant difference between the groups (Lt. UT, Lt. SCM, Rt. SCM) (p < 0.05), but there was no significant difference in the interaction between the measurement time and the group, between the measurement time (p > 0.05). Conclusion: In the neck extension, 75% of the tape extensibility in the Lt. UT and both SCM shortened the muscle contraction onset time.

The Effect of Forced Exposure to Crosscutting Information: What Is the Effect of Broadcast News Shows That Deliver Opposing Opinions?

  • Sangik Han;Sungjoong Kim
    • Asian Journal for Public Opinion Research
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    • v.11 no.4
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    • pp.304-326
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    • 2023
  • News shows often deliver crosscutting information to their audiences by inviting commentators from rival political parties. If these news shows foster the formation of informed and balanced views of the audience, mass media could provide countermeasures against political polarization. To test the effect of such news shows, this study conducted an experiment with two variants of a simulated radio talk show. In the partisan scenario, the two guest commentators' affiliations suggested their ideological orientation. In the non-partisan scenario, the commentators had neutral affiliations. We divided participants into two ideology groups, liberals and conservative, and compared each group's evaluation of the commentators in the two scenarios. Two multivariate analysis of variance (MANOVA) tests were conducted to analyze the effect of the perceived ideology of the commentators on respondents' attitudes toward the commentators' arguments depending on their own ideological inclinations. The analyses results did not support the hypothesis that anticipated partisan attitudes towards the commentators' arguments. It was only the liberal respondents who showed statistically significant different attitudes toward commentators' arguments in each of the two scenarios. The findings suggest that such broadcast shows do not automatically trigger partisan message processing and may help the audience to develop informed and balanced opinions. While the current study failed to find conclusive evidence to support the hypotheses, it also found that the perceived ideology of the information source may trigger partisan attitudes for certain types of issues. Future studies with different experiment designs are needed to investigate the issue further.

The Adolescent's Sex Role Identity and Perceived Parent Behaviors (청년기 자녀의 성역할 정체감과 부모의 양육행동과의 관계)

  • 박선영
    • Journal of the Korean Home Economics Association
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    • v.27 no.4
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    • pp.139-150
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    • 1989
  • The present study was designed to answer the following questions: 1) Is there and relationship between the adolescent's sex role identity and perceived parent behavious? 2) Is there any gender differences in perceived parent behavious? 3) Is there any interaction effect between sex role identity and gender in perceived parent behaviors? 109 male and 101 female undergraduates from the five universities in Seoul served as subjects in this investigation. Subjects were administered the Parent Behavior From (PBF) and the Bem Sex Role Inventory (BSRI) in counterbalanced order. A4 (sex-role identity)×2(gender) multivariate analysis of variance was performed for the perceived paternal and maternal behaviors separately. The simultaneous confidence intervals for pairwise comparison were followed when the MANOVA was significant. In testing all hypotheses, .05 was used as a significance level in this study. For the perceived paternal behavious, 1) The androgynous group, compared with the undifferentiated group, reported greater father warmth, active involvement, greater encouragement of cognitive independence, cognitive curiosity, cognitive competence, achievement control, and conformity. 2) The androgynous individuals showed higher father warmth, congitive independence, curiosity, and cognitive competence than the feminine individuals. 3) The androgynous individuals were found to have significantly higher father warmth than the masculine individuals. For the perceived maternal behaviors, there was a significant difference between gender groups in conformity. Daughters reported higher conformity than sons. The interaction effect between sex-role identity and gender, however, was not found to be significant.

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Arthropod Diversity and Community Structure in Fields of Non-genetically Modified (GM) and Herbicide-tolerant GM Rice (PPO 저해 제초제 내성 유전자변형 벼가 절지동물군집에 미치는 영향)

  • Kim, Young-Joong;Lee, Joon-Ho;Back, Kyoungwhan;Kim, Chang-Gi
    • Korean journal of applied entomology
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    • v.54 no.4
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    • pp.335-343
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    • 2015
  • One of the primary concerns about the environmental risks of genetically modified (GM) crops is that they may have adverse effects on the local arthropod communities. In this study, we investigated whether the arthropod diversity and community structure in fields of GM rice tolerant to protoporphyrinogen oxidase (PPO)-inhibiting herbicides differ from those in non-GM (control) rice fields. The aim of this study was to assess the potential adverse effects of GM rice on the local arthropod communities. During the growing seasons in the study period, we collected arthropods from both fields by using yellow sticky traps and compared the diversity and community structure of arthropods from the two sites. Overall, the GM rice had no significant effect on the diversity of the local arthropod communities. In addition, multivariate analyses (permutational multivariate analysis of variance and nonmetric multidimensional scaling) showed that the structures of arthropod communities were not affected by the rice genotype (GM vs. non-GM), although these comparisons were made using data obtained at different sampling dates.