• Title/Summary/Keyword: T-test analysis

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Differences in the cardiovascular change in normal and obese according to treadmill exercise (트레드밀 운동에 따른 정상인과 비만인의 심혈관계 변화 차이)

  • Kyung-jin Lee;Young-jun Kim;Sung-hwan Ji;Jeongwoo Jeon;Jiheon Hong;Jaeho Yu;Jinseop Kim;Seong-Gil Kim;Dongyeop Lee
    • Journal of Advanced Technology Convergence
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    • v.2 no.2
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    • pp.39-47
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    • 2023
  • The purpose of this study is to examine the difference in cardiovascular changes between obese people and the general public using a treadmill. This study was conducted by recruiting 32 adult males who had no experience in hospital visits or treatment due to cardiovascular disease. The subjects were divided into an obese group and a general group based on BMI 25 and performed treadmill exercise for 12 minutes. SBP, DBP, HR, MAP, and PP before and after the treadmill were measured to see the difference in cardiovascular system changes. Data analysis was evaluated using an independent t-test. In the case of SBP, MAP, and PP, there were significant differences between groups (P<0.05). For DBP and HR, no significant difference was found between the two groups (P>0.05). The subjects of this study consisted only of healthy adult males in their 20s, and there is a limitation in that it was performed in a short time.

Emotional Experience of Korean Urban Elderly in Everyday Lives using Experience Sampling Method: A focus on gender differences (경험표집법을 통해 살펴본 도시노인의 일상생활 경험: 공간/대인맥락과 정서경험에서의 젠더차이를 중심으로)

  • Han, Gyounghae;Son, Jeongyeon
    • 한국노년학
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    • v.29 no.3
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    • pp.1159-1182
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    • 2009
  • The purpose of this study is to examine everyday emotional experience of urban elderly in Korea. Specifically, this study explores gender differences in the effect of place/location of activity and companionship on the daily emotional experience. Data were collected from 148 urban elderly (men=76, women=72) in Seoul, using Experience Sampling Method(ESM). The unit of analysis was the self-report and in total 5,530 self-reports were provided. The statistical methods used for the data analyses were descriptive statistics, t-test, χ2 verification, and ANOVA. The major findings are as follows. First, the elderly in Korea spend a quite substantial portion of their time at home, and they spend the largest share of their time in company with their spouse. Second, women report higher intensity of stress and irritation than men in terms of overall emotional experience. Third, the effect of activity location and companionship on emotional experience turned out to be different depending on gender. Emotional experience of daily lives and overall quality of life are shown to be inter-related. Based on these findings, this study provides a significant implication that situational contexts of experience should be considered in order to understand the daily emotional experience of the contemporary Korean elderly.

Factors influencing Health-Related Quality of Life in elderly who visited a senior center: with activity of daily living, quality of sleep and depression (복지관 이용 노인의 건강관련 삶의 질 영향요인: 일상생활 수행능력, 수면의 질 및 우울을 중심으로)

  • Kim, Eun Ha;Lee, Ji Won
    • 한국노년학
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    • v.29 no.2
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    • pp.425-440
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    • 2009
  • The purpose of this study was to understand the ability of the elderly to activity of daily living, assess their quality of sleep and level of depression at home and analyze how such relate health related quality of life. The subject was 223 senior over 65 years old who lived in B Metropolitan City. Descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation and stepwise multiple regression were performed using SPSS WIN 14.0. The major findings of this study are as follow: 1) 34.1% of the respondents experienced a degree of sleep disorder and 57.8% were vulnerable to depression. 2) Activity of daily living, quality of sleep and depression were related to health related quality of life to a statistically significant degree. quality of sleep, activity of daily living positively related to health related quality of life. level of depression related to health related quality of life. Stepwise multiple regression analysis revealed the most powerful predictor of health related quality of life was depression. While age, level of education and quality of sleep were also found as significant predictor variables. Based on these results, it is necessary to perform more studies on health related quality of life and related factors according to that in various settings. Especially, to develop a program intended to improve the health related quality of life of the elderly at home, we need to consider not only physical factors but also psychological factors.

Comparative Morphology and Morphometry of the Olfactory Organ of Carassius auratus and Carassius cuvieri (Cypriniformes, Cyprinidae) (붕어 Carassius auratus와 떡붕어 Carassius cuvieri 후각기관의 형태 및 형태계측학적 비교 연구)

  • Hyun-Tae Kim;Jin-hui Lee
    • Korean Journal of Ichthyology
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    • v.35 no.3
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    • pp.171-176
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    • 2023
  • The olfactory organ of Carassius auratus and C. cuvieri was compared morphologically and morphometrically using stereomicroscopy and statistical program (SPSS version 18.0). The external morphology of the olfactory organ consists of the open semicircular anterior and posterior nostril, and nasal flap. The internal structure showed the oval rosette consisting of several lamellae arranged radiately. In statistical analysis of standard length (SL), olfactory lamellar number (LN), and SL/LN ratio between two species using independent two sample t-test and Pearson's correlation and coefficient, C. cuvieri is the longer SL than that of C. auratus and C. auratus LN (14~20) is lager than that of C. cuvieri (14~16) (P<0.001) and C. auratus LN/SL ratio (12.7±0.7%) is larger than that of C. cuvieri (8.2±0.6%). These results suggest that i) open semicircular nostrils is functional morphology to offset the boundary layer and ii) the lager LN of smaller C. auratus may be a morphological adaptation to reflect its higher olfactory dependence than C. cuvieri and iii) such interspecific difference in LN and LN/SL ratio could be applied as a new taxonomic trait for identification.

Developing and Implementing a Secondary Teacher Training Program to Build TPACK in Entrepreneurship Education (기업가정신 교육에서의 TPACK 강화를 위한 중등 교사 연수 프로그램 개발 및 적용)

  • Seonghye Yoon;Seyoung Kim
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.4
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    • pp.51-63
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    • 2023
  • The purpose of this study is to develop and implement a secondary teacher training program based on the TPACK model to strengthen the capacity of teachers of youth entrepreneurship education in the context of the increasing importance of entrepreneurship as a future competency, and to provide theoretical and practical implications based on it. To this end, a teacher training program was developed through the process of analysis, design, development, implementation, and evaluation based on the ADDIE model, and 22 secondary school teachers in Gangwon Province were trained and the effectiveness and validity were analyzed. First, the results of the paired sample t-test of TPACK in entrepreneurship education conducted before and after the program showed statistically significant improvements in all sub-competencies. Second, the satisfaction survey of the training program showed that the overall satisfaction was high with M=4.83. Third, the validity of the program was reviewed by three experts, and it was found to be highly valid with a validity of M=5.0, usefulness of M=4.7, and universality of M=5.0. Based on the results, it is suggested that in order to expand entrepreneurship education, opportunities for teachers' holistic capacity building such as TPACK should be expanded, teachers' understanding and practice of backward design should be promoted, and access to various resources that can be utilized in entrepreneurship education should be improved.

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Essential services in children's family dentistry program and the role of dental hygienists (아동 치과주치의 프로그램의 필요도와 치과위생사의 역할)

  • Seung-Hun Lee
    • Journal of Korean society of Dental Hygiene
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    • v.23 no.6
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    • pp.431-439
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    • 2023
  • Objectives: The aim of this study was to investigate the essential services, importance, interval of examinations, and role of dental hygienists in children's family dentistry program. Methods: A total of 124 participants completed a self-administered questionnaire. The data were analyzed using independent t-test, and ANOVA, and Pearson correlation analysis. Results: All participants stated that oral examination and panoramic radiography are required; children should be educated about brushing, use of oral products, and regular check-ups; and preventive treatments such as molar sealants and prophylaxis should be offered. They stated that light-curing resins and glass ionomer fillings should be offered in treatment services. They stated that examination intervals should be shorter for education and prevention rather than treatment. Dental hygiene students were more likely than dentists and dental hygienists to say that the program was more important. There was a correlation between oral examinations and education and treatment, and between essential services and their importance. Conclusions: Services considered essential and important should be provided first, education and prevention should be provided more frequently than treatment, and their importance should be emphasized not only to dental hygiene students but also to dental hygienists and dentists who are the main providers of services.

The Effect of Good Death Awareness and Attitude Toward Care Of Dying on Empathy Capacity among Nursing Students (간호대학생의 좋은 죽음 인식과 임종간호태도가 공감역량에 미치는 영향)

  • Seo-U Mo;Ga-Young Bang;Il-hun Yoon;Weon-Hee Moon
    • Journal of Advanced Technology Convergence
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    • v.3 no.1
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    • pp.1-11
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    • 2024
  • This study was a descriptive research study conducted to determine how nursing students' good death awareness and nursing attitudes toward dying patients affect their empathy. The subjects of the study were 155 nursing students, and data were collected using an online survey method. Data analysis was performed using descriptive statistics, independent t-test, one-way ANOVA, and multiple regression using the IBM SPSS Statistics 26. Higher attitude toward care of dying (B=.312) had a statistically significant positive effect on empathy capacity (p<.010). The variables that affected nursing students' empathy capacity were end-of-life experiences of relatives (𝛽=.226) and attitude toward care of dying (𝛽=.220). The regression model was statistically significant (F=6.968, p<.001), explained 10.4% of empathy. This study is expected to be used as basic data for the development of programs to strengthen the empathy capacity of nursing students in the future.

Prevalence of Dysphagia and Educational Needs in Community-Dwelling Older Adults: Focusing on Chuncheon, Gangwon-do State (지역사회 거주 노인의 연하장애 유병률과 교육 요구도 조사: 강원특별자치도 춘천 지역을 중심으로)

  • Mun, Kwangtae;Lee, Yun-Hwan;Kim, Dong-Wan;Seo, Sang-Min
    • Therapeutic Science for Rehabilitation
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    • v.13 no.3
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    • pp.69-83
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    • 2024
  • Objective : This study investigated the prevalence of dysphagia in older adults in Gangwon Special Self-Governing Province and its impact on Quality of Life (QoL) and educational needs. Methods : A cross-sectional survey was conducted from August 1 to 15, 2023, with 207 cognitively normal older adults from three senior welfare centers. Data included general characteristics, Korean-version of the Eating Assessment Tool (K-EAT-10), Swallowing-QoL, and educational needs related to swallowing disorders. Dysphagia was defined by a K-EAT-10 score of 3 or higher. Participants were divided into normal and risk groups for analysis using chi-square and Independent t-test. Results : The prevalence of dysphagia risk (K-EAT-10 score of 3 or higher) was 41.5% (86 individuals). Among the 92 individuals reporting dysphagia symptoms, 64 (69.6%) were at risk. QoL was significantly lower in the risk group, especially among those living alone or with denture discomfort. The most preferred educational need was training in eating solid foods (Mean = 4.27), with higher needs in the dysphagia risk group. Conclusion : This study underscores the prevalence of dysphagia, its impact on QoL, and the need for educational programs. Emphasizing prevention, public awareness, and early detection, along with the role of dysphagia rehabilitation experts and community collaboration, is essential for supporting healthy aging.

An Analysis on the Curricula and Recognitions of the Home Economics Teachers who were the Participants of the First-Grade Home Economics Regular Teacher Qualification Program (중등 가정과 1급 정교사 자격 연수 프로그램 운영 실태 분석 및 연수 참여자의 인식)

  • Lim, Il-Young;Kweon, Li-Ra;Lee, Hye-Suk;Park, Mi-Jin;Ryu, Sang-Hee
    • Journal of Korean Home Economics Education Association
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    • v.19 no.4
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    • pp.37-56
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    • 2007
  • The purpose of this study is to provide basic resources to the first-grade Home Economics Regular Teacher Qualification Program (FGHERTQP) in order to improve its operation plans. For the study, the three methods were carried out: an analysis on the curricula of FGHERTQP over six years since 2000, a questionnaire asking their satisfaction degrees and needs on the programs which was answered by the home economics teachers who were the participants of FGHERTQP, and several statistical analyses such as a descriptive-test, a $X^2$-test, a t-test, and one way ANOVA by using SPSS Win ver 10.0. The results of the study were as follows; Firstly, FGHERTQP has been operated ten times by five training centers during resent six years. Subject matters ($1{\sim}7$), whole numbers of lectures ($11{\sim}29$), and their allotted working hours ($111{\sim}136$) vary with individual training centers and operation years. Secondly, when using 5 point likert scales, Contents and Methods of evaluation marked 3.08 which were the lowest scores, and Qualification Training in General marked 3.72 which was the highest score among five fields of Qualification Training in General, Contents, Organizations, Methods and Evaluation. The overall scores were low. Thirdly, in needs analysis on offering subject matters, the participants wanted to study the field of home economics education more than that of subject contents. Looking about the highest needs classified by domains, Food Principles & Meal Management showed the highest in Foods. And Consumer Issues in Clothing & Textiles in Textiles, Upcoming Housing Cultures in Housing, Family Relationship in Child Development & Family Relationship, Juveniles and their daily life as a consumer in Family & Consumer Resources Management. Fourthly, training centers' lectures available had a significant influence on the satisfaction degrees according to general characteristic variations of the participants. That is, as a training center offers more lectures in the field of subject education than those of subject contents, the participants showed higher satisfaction degrees (p<.05).

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The reliability of the cephalogram generated from cone-beam CT (Cone-beam CT로부터 제작된 측모 두부계측방사선사진의 정확도 평가)

  • Kang, Ji-Young;Kim, Kwang-Won;Lim, Sung-Hoon
    • The korean journal of orthodontics
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    • v.37 no.6
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    • pp.391-399
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    • 2007
  • Three-dimensional approaches for the diagnosis and analysis of the dentofacial area are becoming more popular in accordance with the development of cone-beam CT (CBCT). The purposes of this study were to evaluate the reliability of cephalometric measurements of lateral cephalograms generated from a CBCT image by making comparisons with the traditional digital lateral cephalogram, and to evaluate the possibility of the clinical application of CBCT generated cephalogram images. Methods: Twenty patients whose external auditory meatus could be identified in the CBCT image were selected, and both CBCT and digital cephalograms were taken. Differences between the measurements of both cephalograms were tested by paired t-test. Results: Among the 22 measurements used, only U1-FH, Mx6 to PTV, and maxillomandibular difference showed statistically significant differences between the CBCT generated cephalogram and the digital cephalogram. Conclusions: The results suggest that the CBCT generated cephalogram can be used for some cephalometric measurements not requiring porion, PTV, condylion as a landmark (SNA, SNB, U1 to SN, IMPA, interincisal angle, etc.).