• Title/Summary/Keyword: T-test analysis

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A Study on the Preference Analysis of Male's Beard Shape (남성의 수염 조형에 따른 호감도 분석 연구)

  • Won-Woo Kim;Hye-Youn Cho
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.4
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    • pp.797-810
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    • 2023
  • The shape of the male beard to be examined in this study was set as a mustache. This study used frequency analysis and cross-tab analysis to conduct T-test and one-way variance analysis using 300 final responses from the questionnaire that presented preference and non-preference reasons and demographic characteristics along with preference and non-preference options to measure the likability of whiskers. As a result of the study, there were differences in men's preference and non-preference for each beard formulation, and the level of difference was statistically significant between the male and female groups and the age group. In addition, it was found that each group category showed a difference in the reasons for judging likes/dislikes by beard form. There are differences in preference and non-preference according to men's beard formations, and it was confirmed that there are various differences according to perceptual characteristics in the main reasons for favorability and dislike, which are the basis for judgment. Through these results, academic and practical implications were presented in the field of beauty.

Fashion Leadership and Expected Values of Appearance Management According to Individualism-collectivism Orientation (개인주의-집단주의 성향에 따른 유행선도력과 외모관리 기대가치)

  • Park, Eun-Hee
    • Korean Journal of Human Ecology
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    • v.23 no.1
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    • pp.85-99
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    • 2014
  • The purpose of this study was to classify individualism-collectivism orientation into groups and analyze the difference of fashion leadership and expected values of appearance management by the groups. Questionnaires were administered to 376 adults in 20's and 30's living in Deagu and Kyungbook area through June 10~June 20, 2013. Frequency, factor analysis, reliability analysis, cluster analysis, correlation analysis, ANOVA, Duncan-test, t-test, and $X^2$-test were used for data analysis. Survey method was used to collect data for this study and the measures such as individualism-collectivism orientation, fashion leadership and expected values of appearance management consisted of 5-point Likerties scale. Individualism-collectivism orientation was categorized into collectivism, competition consciousness, love of family, and individual focus. Fashion leadership were found as opinion leadership, double leader, and innovator. Expected values of appearance management were found as pleasure/individuality, other consciousness, and conformity. This indicates that women showed high opinion leader, double leader, and innovator of fashion leadership and pleasure/individuality, and conformity of expected values of appearance management while men care more about competition consciousness, love of family, and individuality focus of individualism-collectivism orientation. Individualism-collectivism orientation showed significant correlation with the sub-variable of fashion leadership and expected values of appearance management. Individualism-collectivism orientation were classified into three groups such as competition collectivism, individuality, and low individual-collectivism. A test of significance in groups was determined by demographic variables like gender, age, occupancy and monthly income. Groups showed significant difference in fashion leadership and expected values of appearance management.

A study on the correlation between quality of life and disease severity in adult patients with atopic dermatitis (성인 아토피 피부염 환자의 삶의 질과 중증도에 대한 상관 연구)

  • Kim, Nam-Kwen;Lee, Dong-Hyo;Jo, Ga-Won;Moon, Hyo;Seo, Eun-Sung
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.24 no.3
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    • pp.27-36
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    • 2011
  • Objective : The purpose of this clinical research was to analyze the correlation between disease severity and disease specific quality of life adjusted by general quality of life measure in adult patients with atopic dermatitis attending Wonkwang Univ. Sanbon Oriental Medical Center. Methods : A total of 35 patients participated in atopic dermatitis clinical trial from June 1st, 2010 to June 30th, 2011 were included in this study. SCORing Atopic Dermatitis(SCORAD) index, Dermatologic Life Quality Index(DLQI), Health Utility Index III(HUI-III) and EuroQoL 5-Dimension(EQ-5D) have been estimatied. Baseline statistical analysis and normality test were done by using Student t-test, Shapiro-Wilk test and ladder test. Pearson analysis and Spearman analysis were conducted to examined the correlation of each variables. Hierachial regression analysis was performed using related variables. Statistical significance was achieved if the probability was less than 5%. Results : There were statistically significance between DLQI and SCORAD index, and also between DLQI and EQ-5D. However there was no significant between DLQI and HUI-III. In the hierachial regression analysis, after adjusting for demographic variables (gender, age) and general quality of life (EQ-5D), SCORAD index significantly predict the intensity of disease specific quality of life (DLQI). Conclusions : We confirmed the correlation between SCORAD index and DLQI, and developed the inference for regression equation of DLQI using SCORAD index, EQ-5D and demographic variables.

Study on Academic Stress and Athletes' Stress-related Health Status (학생들의 학업 및 운동스트레스와 건강상태의 관련성에 관한 연구)

  • Lee, Soojin
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.35 no.5
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    • pp.185-192
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    • 2021
  • The purpose of this study is to identify the effects of lifestyle, study stress and training stress on health status, and provide fundamental data for health management of university students majoring in physical education. In this study, 149 students participated and they were surveyed demographic characteristics, lifestyle, Maslach burnout inventory (student stress inventory), training stress inventory, and Mibyeong index. Height and weight were measured for calculating BMI. For statistical analysis, Student t-test, ANOVA test, chi-square test, correlation analysis, and multinominal logistic regression test has been used. There were differences between Mibyeong groups according to digestion status, smoking for female students and quality of sleeping for both male and female students. Study stress and training stress also affected to health status. Cynicism among study stress categories and all categories among training stress showed differences between sex. Correlation analysis and logistics regression analysis was used to estimate related factors of health status after adjusting for sex and age. Based on logistics regression analysis, quality of sleeping affected to Mibyeong 1 group and quality of sleeping, smoking and digestion status affected to Mibyeong 2 group. Among training stress category, dissatisfaction with game result and skills and lack of leisure time were affected to both Mibyeong 1 and 2 group. This study suggests that lifestyle, study stress and training stress might be significantly associated with university students majoring in physical education. Through managing those influence factors, health status of students could be improved.

Population-Based Newborn Hearing Impairment Screening Test Using GJB2 Mutation Analysis

  • Lee, Kyung-Ok;Jeong, Su-Jin;Byun, Ji-Young;Kim, Jeong-Sook;Lee, Hye-Jung;Seong, Hye-Soon;Kim, Kyung-Tae
    • Korean Journal of Clinical Laboratory Science
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    • v.39 no.2
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    • pp.113-121
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    • 2007
  • Hearing loss is a common congenital disorder that is frequently associated with mutations in the Cx26 gene (GJB2). Recently, the mutation analysis of GJB2 has been used in a newborn screening test for the detection of hearing impairment. Population-based studies should be performed before the application of genetic testing for the identification of deaf newborns. In this study, 8 positions of GJB2 mutations-including 35delG, 167delT, 235delC, V27I, V37I, M34T, E114G, and I203T-were analyzed using PCR-direct sequencing in a total of 437 healthy Korean neonates. DNAs from dried blood spots were extracted using a commercial DNA extraction kit. The PCR-amplified products (783 bps) of the GJB2 gene were detected using 2% agarose gel electrophoresis and subjected to direct sequencing. The sequences were compared with those in the GenBank database by using the BLAST program. In this study, 5 GJB2 mutations -including V27I (79G>A), V37I (109G>A), E114G (341A>G), I203T (608T>C), and 235delC- were found. Of the 437 neonate samples, 301 subjects showed GJB2 mutations (68.9%, 301/437). The V27I mutation was found in 271 subjects and was the most frequent (62.0%, 271/437). The E114G, I203T and V37I mutations were shown in 146, 17 and 14 subjects, respectively. The 235delC mutation was found in 1 subject. The E114G mutation was frequently accompanied by the V27I mutation. V27I/E114G (97.2%, 143/147) was the most common double mutation and 3 subjects had the double mutation V27I/I203T. A triple mutation, V27I/E114G/I203T, was found in 1 subject. In conclusion, PCR-direct sequencing is a convenient tool for the rapid detection of GJB2 mutations and this data might provide information for the genetic counseling of the GJB2 gene.

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Postoperative Stability and Occlusal Plane Alternation by Orthognathic Surgery of Skeletal Class III Malocclusion with Anterior Open Bite (전치부 개교를 동반한 골격성 III급 부정교합 환자의 악교정 수술 후 교합평면의 변화와 안정성에 관한 연구)

  • Shin, Soo-Jung;Hwang, Byung-Nam;Lee, Jung-Keun;Rhee, Seung-Hoon
    • The korean journal of orthodontics
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    • v.29 no.1 s.72
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    • pp.113-127
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    • 1999
  • The purpose of this study is to investigate the stability of counterclockwise rotation of mandible by sagittal split ramus osteotomy to correct the skeletal Class III malocclusion with anterior open bite. Twenty five skeletal Class III open bite patients(mean age 20.6 years) who were treated by the sagittal split ramus osteotonues with rigid fixation were examined in this study. Cephalometric radiographs were taken for each Patients Preoperative(T1), ewly Postoperative(T2), and late postoperative Period(T3). Mean postoperative period was 8.0 months. Cephalometric analysis was done and data from T1, T2, and T3 were analyzed statistically by Paired t-test and Pearson correlation analysis. The following results were obtained. 1. Mandibular plane angle decreased $2.9^{\circ}$ and mandibular occlusal plane angle related to SN Plane decreased $2.7^{\circ}$ after orthognathic surgery(T2). At 6 months after orthognathic surgery(T3), mandibular plane angle increased $1.0^{\circ}$, but mandibular occlusal plane angle did not changed. 2. The amount of horizontal relapse long time after orthognathic surgery(T3) was 1.6 mm at B point and it was $22\%$ of the total posterior movements. There was no vertical relapse in the anterior facial height. 3. The related factor with horizontal relapse at late postoperative period was mandibular plane angle(p<0.01). The related factors with decreasing posterior facial height were amount of mandibular setback(p<0.01), increasing of mandibular ramus height(p<0.01), and decrease of the mandibular plane angle during operation(p<0.01). 4. There was no relationship between the amount of changes in mandibular occlusal plan angle during operation and the amount of relapse after surgery.

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Importance-Performance Analysis of Selection Attributes of University Ski Lecture Environment (대학 스키 수업 환경의 선택속성 중요도-만족도 분석)

  • Kim, Sung-Duck;Lee, Yong-Kuk
    • Journal of Digital Convergence
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    • v.14 no.6
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    • pp.489-498
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    • 2016
  • The purpose of this study was to evaluate selective attributes importance and satisfaction of University Ski Lecture Environment that students perceive using IPA method. In order to achieve this goal, a questionnaire was used to gather data, and the convenient sampling method was used to select 300 members from three pertinent university in Seoul and Chungcheong-do, Gyeongsang-do Province as participants of this study. Only data from 221 respondents however were used after screening data for reliability, and SPSS for Windows(21.0 version) statistical program was used to conduct descriptive analysis, factor analysis, reliability analysis, paired samples t-test analysis, independent samples t-test analysis and IPA matrix analysis. The following results were obtained. First, significant differences between the level of satisfaction and the level of importance were found for part of the selection attributes for each group. Second, Iquadrant was included with meals and information provided factors. IIquadrant was included with instructors and class program, information provided, accommodation factors. IIIquadrant was included in accommodation and meals, time-distance factors. IVquadrant was included in the information provided factor.

The Effect of Singing Intervention for Women Elderly with Dysphagia Risk (연하장애 위험 여성노인의 노래중재 적용 효과)

  • Yun, Ok-Jong;Lee, Young-Hee
    • Korean Journal of Adult Nursing
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    • v.24 no.4
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    • pp.380-389
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    • 2012
  • Purpose: This study was conducted to describe the risk of dysphagia and to evaluate the effects of a singing intervention for women elderly in community. Methods: One-group pre test-post test design was used. The subjects were 29 women over the age of sixty and residing in a local area. A singing intervention consisted of breathing, vowel production and singing. The one hour intervention occurred once a week for eight weeks. The variables of dysphagia risk, a swallowing test, and nutritional status were measured. Analysis was done by paired t-test. Results: There was a significant decrease in the score of dysphagia risk (p<.001). There were significant increases in the swallowing test scores [modified water swallowing test (p=.032), food test (p=.001)]. There were no significant differences in nutritional status (triceps skin fold thickness, mid arm muscle circumference). Conclusion: The findings support that a singing intervention can be helpful in reducing the risk of dysphagia may improve deglutition for the women elderly. These results suggest that this study may contribute to the use of a singing intervention for women elders with dysphagia risk.

The Effect of Learning Cycle Model in Solution Concept on the Cognitive Development for Primary Student (용액 개념의 순환학습이 초등학생의 인지수준발달에 미치는 영향)

  • 최영주;김세경;고영신
    • Journal of Korean Elementary Science Education
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    • v.23 no.4
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    • pp.273-278
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    • 2004
  • According to Piaget, children aged 11 are in the middle of concrete operation period and formal operation period. So, it is necessary to adopt the Learning Cycle Model (LCM) which helps students improve their cognitive development. After determining the test for the Science Concept of Matter (SCOM), the experimental group showed higher average than the comparative group in the post-test. In the sound understanding, the experimental group showed higher ratio than the comparative group. And in the ratio of imperfect, wrong understanding and no response, the experimental group was lower than the comparative group. On the questions that were needed the complicated inquiry, many students of both groups still couldn't find the fundamental cause. In forming the scientific conceptualization, there was a meaningful difference (p < .001) after post-test Analysis of Covariance (ANCOVA) with pre-test result. After determining the test for the Test Inquiry Science Process (TISP), the experimental group showed higher average than the comparative group in the post-test. In the category of basic inquiry process which is needed in concrete operation, there was a meaningful difference (p < .05). In the category of unified inquiry process which is needed in formal operation, they showed no meaningful difference (p > .05). Therefore, applying the LCM to the chapter of 'Solution and Dissolving' is more effective on improving the scientific conceptualization and on helping the concrete operation abilities than the teacher centered learning.

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Factors Affecting the Performance of the Dementia Screening Test Using the Health Belief Model (건강신념모델을 적용한 치매 선별검사 수행에 영향을 미치는 요인)

  • Yoo, Ri;Kim, Gwang Suk
    • Journal of Korean Public Health Nursing
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    • v.31 no.3
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    • pp.464-477
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    • 2017
  • Purpose: This study was conducted to investigate factors affecting the dementia screening test based on the health belief model. Methods: The survey was conducted with structured questionnaires assessing the knowledge of dementia, health beliefs, self-efficacy and cue to action for dementia screening. Study participants were 156 older adults and data from 121 respondents were analyzed. Descriptive statistics, frequency percentage, chi-squared (${\chi}^2$) test, t-test and logistic regression analysis were conducted using SPSS version 23.0. Results: Factors influencing the dementia screening test were found to be gender, self-efficacy on dementia screening, and the presence of family or friends who underwent dementia screening. Older adults who were female (OR=4.92, p=.003), showed an increasing average score of self-efficacy for dementia screening (OR=2.85, p=.002), and had family members or friends who underwent dementia screening (OR=4.60, p=.003) were more likely to receive dementia screening. Conclusion: This study showed that education and programs enhancing self-efficacy associated with the dementia screening test, as well as utilizing the network of family or friends are necessary to increase the rate of dementia screening.