• The Korean Journal of Applied Statistics
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• v.25 no.1
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• pp.183-196
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• 2012

The inference for incomplete data such as missing data, truncated distribution and censored data is a phenomenon that occurs frequently in statistics. To solve this problem, Expectation Maximization(EM), Monte Carlo Expectation Maximization(MCEM) and Stochastic Expectation Maximization(SEM) algorithm have been used for a long time; however, they generally assume known distributions. In this paper, we propose the Metropolis-Hastings Expectation Maximization(MHEM) algorithm for unknown distributions. The performance of our proposed algorithm has been investigated on simulated and real dataset, KOSPI 200.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.7
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• pp.245-255
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• 2016

Consumer expectation is divided into rational and emotional components with regard to the experience of products or services. The purpose of this study is to investigate the relationship between these two types of expectations and consumer satisfaction. For the theoretical framework, we use the dual expectation theory with respect to the should-expectation and will-expectation, and verify their effects on consumer satisfaction. The findings of this study imply that under rational expectation, consumer satisfaction increases when the result of their experience exceeds their expectation and the impact is stronger when the will-expectation is satisfied. Under emotional expectation, consumer satisfaction increases when the should-expectation exceeds the result of the actual performance, but decreases when there is disaccord between the will-expectation and performance. For emotional-based expectation, the impact on consumer satisfaction is stronger for should-expectancy disconfirmation than for will-expectancy disconfirmation.

• Journal of Acupuncture Research
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• v.33 no.4
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• pp.33-38
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• 2016

Objectives : To identify potential correlation between patients' expectations and clinical outcome in a randomized control study of acupuncture. Methods : In a clinical trial of acupuncture for hypertension, 60 participants with pre and mild hypertension were randomized into an acupuncture group and a control group. After randomization, all participants were asked to rate their expectation for the intervention on a scale of 0 to 10. To analyze the effect of expectation on clinical outcome, change of blood pressure was compared between high and low expectation groups. Results : There was no significant difference of baseline blood pressure between low expectation group and high expectation group. Proportion of acupuncture group and control group was also not different between low and high expectation groups (p = 0.638). The change of systolic blood pressure was -1.55 mmHg in low expectation group and -3.07 mmHg in high expectation group, and it was not significantly different (p = 0.54). There was no significant difference in the change of diastolic blood pressure between two groups (p = 0.58), with -3.24 mmHg in low expectation group and -2.34 mmHg in high expectation group. Conclusion : In this study, the expectation of intervention (including acupuncture treatment) was not associated with the effect of intervention.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8462-8471
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• 2015

It is widely known that consumer satisfaction, as well as consumer voice and loyalty, affect firms' performance. Prior studies on consumer satisfaction have focused on expectancy disconfirmation theory and its effects on satisfaction related to disconfirmation with consumer expectation and with perceived performance. This study classified consumer expectation into should-expectation and will-expectation, and investigated how disconfirmation with these expectations affects consumer satisfaction differently based on regulatory focus. Specifically, for promotion-focused consumers, disconfirmation of will-expectation has a more significant influence on consumer satisfaction than that of should-expectation. For prevention-focused consumers, disconfirmation of should-expectation has a more significant influence on consumer satisfaction. The results of this study provide academic insights that not only generic expectation (will-expectation) but also should-expectation play an important role in determining consumer satisfaction according to regulatory focus. In addition, it is expected that the findings can be used as a guide to manage consumer expectation in practice.

• Journal of the Korean Dietetic Association
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• v.7 no.4
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• pp.397-409
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• 2001

The purposes of this study were to identify customer expectation, perception and satisfaction of foodservice quality to analyze the influencing factors on foodservice quality and finally to provide basic information for the improvement of foodservice quality. A survey of 4 factory foodservices was undertaken and detailed information was collected from 675 respondents. Statistical data analysis was completed using the SPSS package program for descriptive analysis, t-test and one-way ANOVA. Male had higher scores than female in perceptions of foods and services, and the differences were statistically significant. As analysis of expectation, perception and satisfaction result of age, expectation and perception were statistically significant, and mostly expectation and perception increased according as age increased. Expectation and perception showed statistical differences by marital status. Married people had higher scores in expectation and perception of food and service than single. According to family type, respondents living alone showed lower scores in expectation and perception of food and service than those living with family or relatives. Conversely, living alone had high expectation on service. As analysis of work type, office workers showed higher scores of service expectation, food and service perception than production workers. As education level increased, food and service expectation and perception increased mostly. As analysis of work post, food and service expectation and perception increased as work post raised. Meanwhile, married people had higher scores in service quality of satisfaction than single. Result of the study can be summarized as follows the analysis of expectation, perception and satisfaction of foodservice quality, the Quadrant of food and service quality expectation and perception according to demographic variables. Expectation, perception and satisfaction scores of foodservice attributes according to work type. The distribution of attributes with satisfyingly significant difference in grid.

• Journal of Korean Medicine Rehabilitation
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• v.23 no.3
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• pp.187-199
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• 2013

Objectives The purpose of this study was to measure the expectation of patients visiting the Korean medical hospital for treatment from traffic accident (TA). Methods The data were collected with a questionnaire for about 1 year. The subjects were 39 patients who hospitalized in Korean Medical Hospital after TA. All data were analyzed using SPSS (Statistical Package for the Social Science) program to analyze. Results Acupuncture (8.36) had the highest expectation degree which was followed by Herbalmedicine (8.32), Pharmocoacupuncture (8.14). There were no significant differences in the expectation degree with sex, age, education, occupation. The patients who had experienced Korean medicine treatment had high expectation degree in Pharmocoacupuncture and Herbalmedicine. And the expectation was different significantly (p<0.05). Conclusions The expectation of TA patients was high in Acupucture and Herbalmedicine. The group experienced korean medical treatment before had high degree of expectation in Palmacoacupuncture and Herbalmedicine.

• Journal of the Korean Society of Clothing and Textiles
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• v.16 no.3 s.43
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• pp.223-232
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• 1992

The ultimate purpose of this study is to build a model on clothing satisfaction which extends the consumer satisfaction model by unifying the exportation antecedents. In the literature study, it is proposed to clarify the concepts on the clothing satisfaction, and to investigate the present paradigms of the consumer satisfaction. It is widely accepted by the clothing researchers that the clothing satisfaction is a comparative process in which the evaluation criteria are used to judge the clothing product and to access the disconfirmation. In the Disconfirmation paradigm, the role of the expectation is very important. We propose to classify the expectation into the expective expectation and the normative expectation. The normative expectation applies when the investment cost and effort are considered. The expectation is shown to be affected by the expectation antecedents of the product characteris-tics, the situation characteristics, and the consumer characteristics. We investigate in detail those clothing satisfaction determinants and their measurement methods. Then, we build a clothing satisfaction model by the disconfirmation paradigm which is composed of the expectation antecedents, the expectation (expective expectation, normative expectation), the perceived clothing product performance, and the disconfirmation.

• The Journal of Society for e-Business Studies
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• v.9 no.3
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• pp.169-190
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• 2004

This study involves the test of constructs for measuring the web site user expectation, perceived performance regarding IQ, expectation congruency, and satisfaction about influence overall satisfaction. The findings can be summarized as follows. First, Web-IQ expectation appeared to have a positive effect on Web-IQ perceived performance by expectation congruency and a positive effect on perceived performance by assimilation effect. Second, Web-IQ expectation did bot appear to have a negative effect on Web-IQ expectation congruency. Although that was rejected, it differs from established researches. Some prior Web-IQ expectations that approach to congruency after one's post Web-IQ expectation. Third, Web-IQ perceived performance appeared to have a positive effect on Web-IQ expectation congruency. Fourth, result that analyze about effect that congruency gets to Web-IQ satisfaction although Web-IQ expectation appeared to have a positive effect on overall satisfaction.

• Journal of Families and Better Life
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• v.17 no.3
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• pp.1-16
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• 1999

This study focuses on the beginning of transition to parenthood expectation and applies the exchange theory in order to examine reward and cost of transition to parenthood expectation and picks up the main cause effecting it. This study conducted structured questionnaires to total 330 first pregnant women and examined descriptive statistics and t-test F-test analysis by using collected data. And here are the result of research. First the transition to parenthood expectation expected rewards much more than costs and had much importance on individual aspects in parenthood. The more were they aged hardly educated and housewives the higher did they showed expectation of reward. The less did they have high education the more did they expect costs of the transition to parenthood expectation. Second to examined the reward/cost of transition to parenthood expectation according to martial satisfaction the more did they have martial satisfaction the more did they expectation of the rewa ds on transition to parenthood expectation. On the contrary the more did they respect from husbands the less did they cost of transition to parenthood expectation. This study would be helpful to lead family life having childbirth to the positive way be examining the process from childbirth plan to delivery. Also it will be applicable to seek for the methods to help would-be parents as basic data on material on education about transition to parenthood.

• Women's Health Nursing
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• v.14 no.2
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• pp.124-130
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• 2008

Purpose: The purpose was to identify marriage expectation and related factors among college students. Method: Data was collected by questionnaires from 329 college students in K university in Daegu. The data was analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficients, and stepwise multiple regression. Result: Marriage expectation among college students was significantly different according to gender, age and opportunities for employment. Marriage expectation among college students correlated with sex role attitudes. Significant predictors influencing marriage expectation were age, opportunities for employment, mother's job, and sex role attitudes, A combination of these predictors accounted for 10.3% of the variance in marriage expectation. Conclusion: These findings show that marriage expectation is influenced by age, opportunities for employment, mother's job, and sex role attitudes. Therefore when nursing interventions are developed to improve marriage expectation, these factors need to be considered.