• The Korean Journal of Community Living Science
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• v.17 no.3
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• pp.29-41
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• 2006

The purpose of this research is to study the causal model among mother related variables, child abuse, and children's emotional maladjustment behaviors. The sample subjects were 542 pairs of fifth and sixth grade elementary school students and first as well as eighth grade middle school students, and their mothers. The major findings of the research are as follows: First, the result of multiple regression analysis on the effects of the maternal parenting stress and marital satisfaction to the children's abuse indicates that stress related to learning expectation and stress related to relationship with child are the significant contributing factor to physical abuse and verbal abuse. Second, the result of multiple regression analysis on the effects of the maternal parenting stress and child abuse to the children's emotional maladjustment behaviors indicate that verbal abuse is the significant contributing factor. Third, looking at causal relations of the maternal variables (maternal parenting stress, marital satisfaction) and child abuse (physical abuse, verbal abuse, neglect) to the children's emotional maladjustment behaviors, maternal variables impact indirectly through the child abuse factor.

• Journal of the Korean Society of Safety
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• v.35 no.2
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• pp.55-60
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• 2020

The purpose of this study is to analyze the influence of the economic and workforce factors on the annual number of occupational accident fatalities occurring at the construction sites. The considered variables of the economic factor are the amount of economic losses caused by industrial accidents, the GDP, and the total monthly wage for each economically active population. And, the variables related to the workforce factor are the number of economically active population, the number of female economically active population, and the number of labor union members. The multiple regression analysis was conducted to determine the effect of two factors on the total number of occupational fatalities in the construction industry. The results show that GDP among considered variables in the economic factor had a statistically significant negative relationship with the number of the construction accident fatalities in the construction industry. Among variables related to the workforce factor, economically active population showed a statistically significant negative relationship with the number of the construction accident fatalities.

• Journal of Korean Academy of Nursing
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• v.14 no.2
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• pp.84-92
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• 1984

This article examined relationships between selected variables, such as demographic background, care, treatment variables, environmental characteristics, and patient's daily behavior and mood change. Relationship were determined between independent variabltherapeutic-rapeutie approach, demographic data, environmental management approach-,and dependent variable-patient's daily behavioral and mood change. 35 patients selected within some criteria in a psychiatric ward, were obserbed during 5 weeks by use of Wyatt's Behavior & Mood Rating Scale ac-cording to the object of the study. At the same time, the frequence of the care and treatment were collected. Criteria for sample selection and independent variables as an influential factor to the patient behavioral change, based on a literature revienw and clinical experiences. Pearson's correlation and multiple regression analysis were used to determine the influfntial factors to the patient behavioral change. Systematic reading (r=.8324), Psychiatrist's individual interview (r=.5764), tranquilizer (r=.3441) and hospitalization processing date (r=.4143) were related with patient's behavioral change. That is these 4 variables can be said to influence to the patient's behavior and mood. A stepwise multiple regression analysis of the effect of the independent varibles of systematic reading, psychintrists individual interview, tranquilizer and hospitalization processing date on the dependent variable, patient's behavioral change was carried out. Systematic reading with on R²of. 69 revealed to be the main influential factor to the patient's behavior and mood change, as the next factor psychiatrist individual interview. A total inclusion of these factors revealed a 73% prediction for the patient's behavior and mood change. But the most influential factor was the interaction of the systematic reading and psychiatrist's individual interview.

• Korean Journal of Child Studies
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• v.25 no.4
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• pp.191-200
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• 2004

The purpose of this research is to delineate the effect of maternal variables of the children's depression. Such variables as the mother's age, her education level and maternal parenting stress have been chosen for the analysis. The sample subject were 659 pairs of fifth/sixth grade of elementary school and first/second grade of middle school and their mothers. The data were analyzed frequency, percentage, factor analysis, Cronbach's alpha, ANOVA, Pearson's correlation, and stepwise multiple regression analysis. The major findings of the research are as follows : First, the children's depression is significantly related to mother's education level but the children's depression is not significantly related to mother's age. Second, parenting stress related to temperament, relationship and learning expectation is significantly related to children's depression. Third, the result of step multiple regression analysis on the effects of the maternal variables to the children's depression indicates that maternal parenting stress related to temperament, relationship and mother education level are the significant contributing factor. All in all, the maternal variables account for 7% of the children's depression score.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.27 no.12
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• pp.2092-2100
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• 2003

Sensitivity information has been used for linearization of nonlinear functions in optimization. Basically, sensitivity is a derivative of a function with respect to a design variable. Design sensitivity is repeatedly calculated in optimization. Since sensitivity calculation is extremely expensive, there are studies to directly use the sensitivity in the design process. When a small design change is required, an engineer makes design changes by considering the sensitivity information. Generally, the current process is performed one-by-one for design variables. Methods to exploit the sensitivity information are developed. When a designer wants to change multiple variables with some relationship, the directional derivative can be utilized. In this case, the first derivative can be calculated. Only small design changes can be made from the first derivatives. Orthogonal arrays can be used for moderate changes of multiple variables. Analysis of Variance is carried out to find out the regional influence of variables. A flow is developed for efficient use of the methods. A software system with the flow has been developed. The system can be easily interfaced with existing commercial systems through a file wrapping technique. The sensitivity information is calculated by finite difference method. Various examples are solved to evaluate the proposed algorithm and the software system.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2004.09a
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• pp.147-150
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• 2004

Firstly, the precipitation data have to be interpolated for the estimation of water resources. For this purpose, the correlative analysis is made between the topographic variables, which, influence the precipitation phenomena, are classified by elevation(ELEV), slope(SLOPE), distance to the sea(SEA), obstacle (OBST), barrier(BAR), and roughness index(SHIELD), using TOVA(Topographic Variables Extraction Program) and events precipitation during the periods from january the 1st 2000 to December 31 2002. The coefficients of determination show that each event has different topographic influence and ELEV, SLOPE and OBST to the South-West, and SHIELD of every direction have close relationship with the precipitation. The multiple regression model explains 96% of the spatial variation of precipitation.

• Journal of Families and Better Life
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• v.9 no.1 s.17
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• pp.145-160
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• 1991

The purpose of this study is to suggest some fundamental data for the welfare of consumers by investigation some characteristics of the housewives and their attitudes toward a famous brand. For the purpose of this study, the samples were distributed to houswives who lived in Seoul. The 493 data obtained were analyzed by frequency distribution, percentile, $X^2$-test, t-test, F-test, Pearson's correlation, Duncan's multiple range test and Stepwise multiple regression analysis. The major finding were follows ; The major finding were follows ; 1) In general the score for the brand preference of the housewives was somewhat high. There were significant differences between the brand preference of the housewives and the socio-demographic, reference group variables. 2) There were significant differences between the brand image of housewives and the socio-demographic, reference group variables 3) In general the score for the dissatisfaction of the housewives was somewhat low. There were significant differences between the dissatisfaction the housewives and the socio-demographic variables. 4) The brand preference of the housewives had a positive relationship with the level of their dissatisfaction. 5) The most influential variables for the brand preference of the housewives was in the rank of reference group, income, education level.

• Journal of Families and Better Life
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• v.6 no.1
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• pp.51-69
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• 1988

This study was mainly concerned with providing a basis of the development of low-income consumer education program. The purpose of this study was to investigate the level of their consumer skill and the degree of consumer problems' perception. For the purpose of this study, 480 questionnaire were distributed to the housewives in Seoul. The 320 data were analyzed by Frequency, Percentage, ANOVA, Duncan's Multiple Rang Test, Multiple Classification Analysis, and Pearson's Correlation . The major findings of this study were as follows; 1) The socio-demographic variables indicating significant relation to the level of consumer skill are income level, housewife's age , and housewife's education level. The independent influence of all the variables affecting consumer skill was analyzed. It result is in confirming the income as the most influential one. 20 The socio-demographic variables indicating significant relation to the degree of consumer problem's perception are income level, and housewife's education level. The independent influence of all the variables affecting consumer problem's perception was analyzed. It results in confirming the income as the most influential one. 3) Consumer skill level differs significantly at the 0.001 level, according toe the degree of consumer problems' perception. The higher level of consumer skill, the lower degree of consumer problems' perception. The result of this study implies that a consumer education should be given to the low-income consumers, on the basis of their consumer skill level. Further research regarding the consumer skill and problems ' perception of the low-income consumers should be conducted.

• Journal of the Korean Home Economics Association
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• v.31 no.3
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• pp.1-13
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• 1993

This study examined the expenditure on time-saving services and related variables. The time-saving services are food away from home, delivery food, dry cleaning, clothing care, helper and total service. The specific objectives of this study were: (1) to investigate the differences in the expenditure on time saving services according to social economic and demographic variables. (2) to investigate the differences in the expenditure on time-saving services according to role-overload, home goal orientation and work goal orientation. (3) to investigate the independent influence of variables related to the expenditure on time-saving services. For this objectives survey was conducted using interview. The data used in this study included 160 women living in Seoul from employed professional housewives, employed non-professional housewives and non-employed housewives. Statistical analyses were conducted using frequencies, percentiles, mean, oneway ANOVA, DUNCAN-test and multiple regression. The major findings were: (1) Wife's education, wife's age, income, tenure, level of living and employment status were significantly related to the expenditure on time-saving services by using the one-way ANOVA. (2) Income, education, level of living, number of children, and employment status explained the variance of the expenditures on time-saving services about 20%-39% by using a multiple regression method.

• Korean Journal of Adult Nursing
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• v.18 no.4
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• pp.523-532
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• 2006

Purpose: The positive effects of health behaviors in older population are well recognized, but maintenance of health habits was more difficult than initiation. The purposes of the study were to identify predictors of health behavior based on motivation theories, and to analyze predicting power of motivational factors to explain health behaviors in older adults. Methods: The data were collected from older adults either institutionalized or living in the community. Total of 159 subjects with 72 years old in average were recruited for an interview. Hierarchical multiple regression analysis were utilized to analyze the data with age, residential type, and motivational variables. Results: The results of the multiple regression analysis showed that age and residential type explained 3% of variance in health behaviors (F=3.705, p=0.027). When motivational variables were entered, additional 56.9% of variance were explained by the model (F=33.275, p< 0.001). Among motivational variables, perceived benefits was the most important variable (${\beta}=0.346$, t=4.582, p<0.001), followed by self efficacy, emotional salience, and perceived barriers. Conclusion: Considering the importance of each motivational variable, the focus of intervention strategies to assist older adults to maintain health behaviors should be on modifiable and important motivational variables, such as self-efficacy, perceived benefits and barriers, and emotional salience.