• International Journal of Computer Science & Network Security
• /
• v.24 no.4
• /
• pp.44-50
• /
• 2024

This paper offers an overview of matrix formation and calculation techniques within the framework of General Linear Models (GLMs). It takes a sequential approach, beginning with a detailed exploration of matrix formation and calculation methods in regression analysis and univariate analysis of variance (ANOVA). Subsequently, it extends the discussion to cover multivariate analysis of variance (MANOVA). The primary objective of this study was to provide a clear and accessible explanation of the underlying matrices that play a crucial role in GLMs. Through linking, essentially different statistical methods, by fundamental principles and algebraic foundations that underpin the GLM estimation. Insights presented here aim to assist researchers, statisticians, and data analysts in enhancing their understanding of GLMs and their practical implementation in diverse research domains. This paper contributes to a better comprehension of the matrix-based techniques that can be extended to GLMs.

• The Korean Journal of Applied Statistics
• /
• v.35 no.5
• /
• pp.579-591
• /
• 2022

Functional data is collected in various fields. It is often necessary to test whether there are differences among groups of functional data. In this case, it is not appropriate to explain using the point-wise ANOVA method, and we should present not the point-wise result but the integrated result. Various studies on functional data analysis of variance have been proposed, and recently implemented those methods in the package fdANOVA of R. In this paper, I first explain ANOVA and multivariate ANOVA, then I will introduce various methods of analysis of variance for univariate and multivariate functional data recently proposed. I also describe how to use the R package fdANOVA. This package is used to test equality of weekly temperatures in Seoul and Busan through univariate functional data ANOVA, and to test equality of multivariate functional data corresponding to handwritten images using multivariate function data ANOVA.

• Journal of the Korean Society of Costume
• /
• v.21
• /
• pp.219-226
• /
• 1993

The main purpose of this study is to inves-tigate brand loyalty on ready-to-wear of fe-male. The subjects were two hundred ninty females in Taegu. Using SPSS package in or-der to identify relations of clothing selection behavior and information source uses multivariate analysis of variance(MANPVA) univariate analysis of variance(ANOVA) were executed. Scheffe est a kind of post-hoc multiple comparisons methods was adapted. conclusions reached in this study are as follows: 1. Clothing purchase pattern of consumers classified brand loyal group and brand dis-loyal group. The number of people in the brand loyal group was fifty more than that of the brand disloyal group. 2. In relation of brand loyalty and clothing selection behavior brand loyal group had high scores on individuality and exhibition of clothing selection behavior. Brand dis-loyal group had high scors on economy practicality courtesy facility. 3. In difference of information uses on brand loyalty brand loyal group had high scores on printed-information source, broadcast-ing-information source broadcast-ing-information sources. Among them brand loyal group particularly used printed-infor-mation source more than brocasting infor-mation source. On the contray brand dis-loyal group have high scores on human-in-formation source.

• The Journal of Asian Finance, Economics and Business
• /
• v.8 no.1
• /
• pp.53-59
• /
• 2021

This research aims to examine the model of investor herding behavior in making investment decisions in the Indonesian capital market, which is influenced by social and information impacting on the value of the Book Value Per Share (BVPS). The latest stock market conditions show that most investors make the same error pattern in making investment decisions that result in losses. The experiment involves two independent variables, namely, information about BVPS and social influence. This study used a 2×2 factorial design laboratory experimental method. Data collection was carried out through treatment of a sample of 100 individual investors listed on the Indonesia Stock Exchange. Univariate Two-Way Analysis of Variance (ANOVA) statistical tool was used to test the independent variable on the dependent variable. Research results showed that the social influence originating from expert investors is more influential than the Book Value Per Share (BVPS) information on the behavior of herding investors in making investment decisions. These findings suggest that investors know their psychological factors, thereby increasing self-control and investment analysis skills. Further research can use psychological bias and other indicators of accounting relevant information such as Earning Per Share (EPS) to test herding behavior in investment decision making in the capital market.

• Fashion & Textile Research Journal
• /
• v.6 no.6
• /
• pp.731-739
• /
• 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.

• Journal of Korean Clinical Health Science
• /
• v.2 no.3
• /
• pp.176-187
• /
• 2014

Purpose. The purpose of this study was to identify the factors affecting quality of sleep and sleep disturbance among inpatient. Methods. A descriptive correlational study was conducted Participants were 200 inpatient in a hospital located in B city. A structured questionnaire was used for data collection. Collected data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson's correlation, and stepwise multiple regression. Result. Hospitalized patient's score of sleeping quality was 38.26 on an overall scale of 60, indicating it to be higher than 'Medium (30 points). Almost hospitalized patient in this study suffer from sleep disturbances. As results of univariate analyses, Educational level, Departments, Why hospitalized, Insomnia / depression, Chronic Disease, Scale of pain, physical symptoms, environmental factors, emotional factors, and sleep promoting behavior, disturbed sleep among hospitalized. However, the result of stepwise multiple regression analysis identified that physical symptoms, environmental factors, emotional factors, sleep promoting behavior, and Why hospitalized disturbed sleep and were significant score of sleeping quality for hospitalized and these sleep disturbance factors accounted 46.8% of variance of sleeping quality among hospitalized. Conclusion. These findings suggest that hospitalized patients with poor sleep quality should have their health carefully screened for physical symptoms, environmental factors, emotional factors, sleep promoting behavior, and why hospitalized. In addition, we recommend the development of a nursing program for improving sleep quality.

• Korean Journal of Adult Nursing
• /
• v.20 no.4
• /
• pp.573-587
• /
• 2008

Purpose: The purpose of this study was to identify the factors affecting sleeping patterns among hospitalized elderly. Methods: A descriptive correlational study was conducted. Participants were 121 hospitalized elderly in a hospital located in a county. A structured questionnaire was used for data collection. Collected data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson's correlation, and stepwise multiple regression. Results: Almost a half of hospitalized elderly in this study suffer from sleep disturbances. As results of univariate analyses, physical symptoms, anxiety, depression, and environmental factors disturbed sleep among hospitalized elderly. However, the result of stepwise multiple regression analysis identified that anxiety and environmental factors were significant predictors of sleeping patterns for hospitalized elderly and these two factors accounted 32.5% of variance of sleeping patterns among hospitalized elderly. Conclusion: Sleep assessment should be conducted on admission to identify sleep difficulties and thereby to improve quality of nursing care. Nurses and other health care personnels should make efforts to decrease anxiety and to eliminate environmental barriers of sleep among hospitalized elderly. Educational programs for nursing staff that offer information about sleep and sleep promoting interventions for the elderly patients are critical. Moreover, sleep promotion intervention program should be developed, applied and evaluated.

• Journal of Korean Clinical Health Science
• /
• v.1 no.3
• /
• pp.39-48
• /
• 2013

Purpose. This study was performed on survey related dental hygienist job stress and job satisfaction, to improve the work efficiency of the dental hygienist and for dental hygienist to eliminate the cause of stress for health promotion and for management to be able to help to finding ways to provide basic data. Method. This survey is based on 235 people who are dental hygienists working in Changwon city from November 1 to November 30 2012, by statistical analysis of collected data using SPSS Win Program 20.0 version t-test, univariate analysis of variance (one-way ANOVA), correlation analysis that performed to determine statistical significance with a significance level of 0.05 was considered. Results. For correlation of job satisfaction and job stress, the job demands, job insecurity, and workplace culture shows a negative correlation. For Correlation of the physical environment, insufficient job control, interpersonal conflict, and organizational system is, lack of reward shows a positive correlation. The less job stress due to Insufficient job control, interpersonal conflict, organizational system, is, the higher job satisfaction due to job demands and workplace culture is.(p <0.05), The higher job stress is, the higher the job satisfaction is(p <0.05). Conclusions. Job satisfaction and job stress may be relevant each other, there fore several measures should be sought to solve insufficient job control, interpersonal conflict, organizational system and the lack of reward, consequently to increase the job satisfaction of dental hygienists.

• Korean Journal of Occupational Health Nursing
• /
• v.3
• /
• pp.31-40
• /
• 1993

The objective of this study was examine sick leave rates of hospital employees. The sick leave data of 2,123 employees in three(3) general hospitals located in Seoul during the period from January 1, 1992 to December 31, 1992 was analyzed to achieve the study objective. The sick leave rates were computed in compliance with the standards recommended by the International Association on Occupational Health. Univariate analysis methods($X^2$-test and ANOVA) were used to assess the sourse of variance in the rates. The results were as follows : 1. The total annual rates of sick leave were 4.8% in frequency(persons), 0.23% in lost time, 0.68 days in duration and 14.0 days in severity. 2. The sick leave rates of frequency(person). duration and lost time were significantly higher in female than male, in groups of 40-49 years than in the other age group, the married than the unmarried and in the long employment of 8 years or above than the short employment. But there was no significant difference in the rate of severity. Only the sick leave rate of frequency(person) was significantly related to the educatial status, but there was no significant difference in other analytical factors of sick leave rate. 3. The main causes of sick leave were injury and poisoning(24.3%), and disease of the digestive system, disease of the nervous system and sense organs, and complications of pregnancy, childbirth and puerperium(respectively 11.6%). The severity rate was the highest in neoplasms(32.2 days), and followed by endocrine, nutritional and metabolic disease and immunity disorders, injury and poisoning, and infections and parasitic disease in descending order. 4. The sick leave rates of frequency(person), duration and lost time were the highest in nutritional workers followed by registered nurses. However, severity rate was the highest in doctors and pharmacists and followed by in nutritional works. 5. The main cause of sick leave was complication of pregnancy, childbirth and puerperium in registered nurses(26.3%), injury and poisoning in nutritional workers(78.6%) and disease of respiratory system and digestive system in other workers.

• The Journal of Korean Academy of Prosthodontics
• /
• v.58 no.4
• /
• pp.282-289
• /
• 2020

Purpose: The aim of this in vitro study was to evaluate the accuracy of three different intraoral scanners (IOSs) on digital impressions of different types of endocrown cavity preparations. Materials and methods: Two human mandibular molar teeth were prepared with different endocrown abutment designs: one with a buccal wall (Class 2) and the other without a buccal wall (Class 3). Both cavity designs were scanned using a reference desktop scanner (E3) and three different intraoral scanners: Trios3 (TRI group), Cerec Omnicam (CER group), and i500 (I5 group). The obtained Standard Tessellation Language (.stl) datasets were exported to metrology software. The precision was evaluated based on deviations among repeated scan models recorded by each IOS. The trueness was evaluated based on deviations between the reference data and repeated scans. For detecting interaction, data were statistically analyzed using a univariate analysis of variance (ANOVA) and for analyzing the comparison of the test groups data were analyzed by one-way ANOVA and post-hoc Tukey test at the significance level of .05. Results: The deviation values for both cavity designs in the I5 group were significantly lower than those in the other IOS groups in terms of trueness. For both cavity designs, the TRI group exhibited better precision than the other IOS groups. Conclusion: Different technologies of IOS device's and different endocrown prepration designs affected the accuracy of the digital scans.