• Research in Community and Public Health Nursing
• /
• v.19 no.2
• /
• pp.280-289
• /
• 2008

Purpose: This study was carried out to investigate the effects of auricular acupressure therapy on the relief of dysmenorrhea and abdominal pain in female university students. Method: This study was designed as non-equivalent control group research. Data were collected from 44 of the female university students(Exp.: 22, Cont. : 22) from October, 2007 to December, 2007. Collected data were analysed through $x^2test$. Fisher's exact test, Mann-Whitney U test and Wilcoxon signed rank test. Result: Abdominal pain was significantly decreased partially in the experimental group compared to that of the control group(p=.008). Dysmenorrhea was significantly decreased in the experimental group compared to that of the control group(p=.000). Conclusion: It was proven that auricular acupressure therapy was effective for abdominal pain and dysmenorrhea.

• Journal of the Korea Society of Computer and Information
• /
• v.22 no.11
• /
• pp.81-88
• /
• 2017

The purpose of this study was to investigate the effects of mindfulness meditation programs based on stress management on the perceived stress, self-control, self-esteem and satisfaction with life scale in nursing college students. A quasi-experimental study with a non-equivalent control group pretest-posttest design was used. Participants consisted of an experimental group(n=18) and a control group(n=22). The experimental group received the mindfulness meditation program for 60 minutes a week for 13 sessions. Data were analyzed using descriptive statistics, ${\chi}^2-test$, Fisher's exact test, t-test, Mann-Whitney U test. The results showed there were significant decrease for perceived stress(t=-9.43, p=.025) and improved self-esteem(t=1.98, p=.038) in the experimental compared to group control group. These findings indicate that mindfulness meditation programs is effective to psychological well-being in nursing college students. Therefore this program needs to be considered as a nursing curriculum for students.

• Journal of The Korean Association For Science Education
• /
• v.21 no.3
• /
• pp.537-546
• /
• 2001

The purpose of this study was to investigate preservice elementary school teachers' views on the relationship between science/technology and society. Freshmen (n=93) and seniors (n=82) at three universities of education were asked to express their views with 8 items in the Views On Science-Technology-Society, which consisted of two subcategories; 'influence of science/technology on society' (4 items) and 'influence of society on science/technology' (4 items). Mann-Whitney U test revealed that the scores of the freshmen were higher than those of the seniors. This trend was notable particularly in the item concerning 'influence of corporations on science/technology' and 'influence of interest groups on science/technology'. In comparing the scores by gender, a significant difference was found in the item concerning 'influence of policy on science/technology' for the freshmen.

• Journal of Korean Society of Transportation
• /
• v.32 no.6
• /
• pp.615-627
• /
• 2014

In this study, nonhierarchical K-mean cluster analysis is used to classify the types of 230 local governments and the Mann-Whitney U test and Kruskal-Wallis analysis are used to analyze the characteristics of pedestrian accidents by region types. With empirical analysis of pedestrian accidents, this study suggests improvements of walking environments reflecting local characteristics. Type 1-A (relatively dominant urban commercial areas), Type 1-B (predominantly urban residence) and Type 2 (rural areas) have been classified using nonhierarchical K-mean cluster analysis. According to the results, pedestrian accident rate on community roads was more than 60% for all types and incidence rate in rural areas was higher than that in urban areas. In addition, pedestrian accidents of Type 1-B have been found to occur more frequently than Type 2 in intersections and crossings, while the number of roadside casualties for Type 2 was highest.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.38 no.4
• /
• pp.362-367
• /
• 2011

The objective of this study is to measure the fear and anxiety levels of some middle school students in Gyeonggi Province, to analyze the relevant factors, to seek how to alleviate such fear and anxiety and thus enable to make a comfortable and efficient oral management. Six hundred twenty two middle school students in Gyeonggi Province participated in the survey, which used the data of 614 respondents, i.e. 337 males and 277 females. A frequency analysis was conducted to determine the distribution of answers for each question, a crosstabulation analysis was performed to verify the gender differences in answer and an Mann-whitney U test was used to compare fear scores. According to the results patients feared even in unexpected circumstances. In addition, they feared when receiving direct treatment. In terms of gender, female students showed higher levels of fear than male ones (p<0.05).

• Journal of The Korean Association For Science Education
• /
• v.20 no.4
• /
• pp.634-641
• /
• 2000

The degree of cognitive conflict, conceptual change, and the retention of conception in studying 'the cause of rising water at burning a candle in a bottle' with anomalous data were compared by age and gender. According to 'change of belief in initial theory', 7 types of responses to anomalous data were ordered by 4 levels. In comparing the results by age, producing cognitive conflict by anomalous data, conceptual change, and the retention of conception were found to be more effective for older students than younger students. However, the degree of cognitive conflict was not significantly correlated with the conception and retention tests scores. The results of Mann-Whitney U test revealed that there were no significant differences by gender in the degree of cognitive conflict, conceptual change, and the retention of conception.

• The Journal of the Korea Contents Association
• /
• v.18 no.11
• /
• pp.258-266
• /
• 2018

The purpose of this study was to investigate the current status and the perception of hospice and palliative care program coordinators regarding the use of music in bereavement care in Korea. Both on-line and off-line questionnaires were distributed to program coordinators in 91 institutions, and 54 responses were analyzed by descriptive statistics and Mann-Whitney U test. Even though 92.6% of the participants currently provide a form of bereavement care and 51.9% utilize music as a part of their bereavement program, only 20.3% indicated that their bereavement programs were adequate to address the issues involved, suggesting a need for improvement. As the perceived necessity of bereavement care(4.52) and music therapy based bereavement care(4.20) were generally high, this study supports the need for further development of both forms of bereavement care in Korea.

• The Korean Journal of Applied Statistics
• /
• v.30 no.4
• /
• pp.513-528
• /
• 2017

Statistics are often used to test two samples if they have been drawn from the same underlying distribution. In this paper, we introduce several well-known distribution-free tests to compare distributions and conduct an extensive Monte-Carlo simulation to specify their behaviors. We consider various circumstances of when two distributions vary in (1) location, (2) scale, (3) symmetry, (4) kurtosis, (5) tail weight. A practical guideline for two-sample goodness-of-fit test is presented based on the simulation result.

• The korean journal of orthodontics
• /
• v.54 no.2
• /
• pp.117-127
• /
• 2024

Objective: To evaluate the effect of clear aligner treatment and differential sequence distalization of maxillary posterior teeth on anchorage loss in the upper incisors (U1s). Methods: This study used lateral cephalometries and digital models of 12 patients treated with 33% sequential distalization (group 1, mean age: 22.9 ± 0.7 years, five males, seven females) and 12 treated with 50% sequential distalization (group 2, mean age: 25.83 ± 0.5 years, three males, nine females) acquired before and after distalization of upper second premolars (U5) and upper first molars (U6) and upper second molars (U7). The amount of distalization was determined as 2.5 mm in both the groups. Independent Samples t test was used to compare normally distributed parameters. Mann-Whitney U and Wilcoxon tests were used to compare parameters that were not normally distributed. Results: In both groups, the posterior teeth significantly moved by tipping distally and the U1s were displaced anteriorly. Increase in maxillary posterior transverse width (P < 0.001) and distopalatal rotation were observed in U5, U6, and U7 after distalization. It was also observed that U1 was significantly more proclined (1.82°; P < 0.001) and protruded (0.62 mm; P < 0.001), and the overjet (0.45 mm; P < 0.001) increased more in group 1 than in group 2. Conclusions: After sequential distalization of maxillary posterior teeth, more anchorage loss was observed in the anterior region in group 1 than in group 2.

• Therapeutic Science for Rehabilitation
• /
• v.9 no.2
• /
• pp.119-135
• /
• 2020

Objective : The purpose of this study was to investigate the effects of bimanual intensive training on Upper Extremity Function and activities of daily living in stroke patients. Methods : The subjects were 18 patients who were diagnosed with hemiplegic stroke. They were randomly assigned to bimanual intensive training group (n=9) and unilateral intensive group (n=9). Bimanual training group performed bimanual task and unilateral training group performed one hand task for 1 hour per session, 5 times a week, for 4 weeks. Chi-square test, Wilcoxon signed rank test, and Mann-Whitney U test were used for analysis. Results : The results showed that, upper extremity motor function and bimanual coordination were significantly improved in patients in the bimanual training group (p<.05). Additionally, the ratio of affected hand use and amount of use/quality of movement in the hemiplegic upper extremity in activities of daily living for patients in the bimanual training group were significantly improved (p<.05). Although the unilateral group improved motor upper extremity function and activities of daily living in the upper extremity (p<.05), it was not significantly different from that in the bimanual training group. In between-group comparison, bimanual coordination and ratio of the affected hand use in a day were significantly different (p<.05). Conclusion : It is reasonable to conclude that bimanual intensive training therapy is an effective intervention method to improve upper extremity motor function, and activities of daily living in stroke patients.