• Title/Summary/Keyword: T-test analysis

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Relationships between Mental Health, Depression Level, and Internet Addiction among High School Students in Rural Communities (농촌지역 고등학생의 정신건강, 우울정도 및 인터넷 중독과의 관계)

  • Oh, Hyun-Ei;Sim, Mi-Jung;Oh, Hyo-Sook
    • Journal of agricultural medicine and community health
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    • v.35 no.2
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    • pp.124-133
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    • 2010
  • Objectives: This study is to offer basic data to understand the relationships between mental health, level of depression, and internet addiction of high school students in farming communities for developing a mental health management program for adolescents. Methods: The survey was carried out on a convenience sample of 299 high school students in farming communities during May of 2008. Data analysis procedure included $X^2$-test, t-test, Pearson correlation among Adolescent Mental Health & Problem-behavior Screening Questionnaire (AMPQ), Children's Depression Inventory (CDI), and Scales of Internet addiction (K-scales). Results: First, the level of mental health according to the AMPQ for subjects from this study showed problematic behavior was lower when compared to other researches. There were statistically significant differences according to the school type for externalization problems and overall problematic behavior. Based on gender, it was even more problematic for male students in regards to externalization problems. Secondly, the level of depression was relatively low : 5.1% for potential risk and 0.3% for high risk. Thirdly, a total of 96.9% were considered normal for Internet addition levels. 1.7% for potential risk, 1.4% for high risk; however, there was no statistically significant difference between each variable. Fourthly, there was a strong relationship between subjects AMPQ, level of depression and Internet addiction. As depression worsens, Internet addiction also becomes stronger. Conclusion: There is a need for awareness of the mental health of adolescents and precautionary measures, the development of a program for early treatment, adequate management, and decisions on the direction of treatment.

A study on Job and Duty Satisfaction of Dental Technicians (Focusing on employees in denture part) (치과기공사의 직업 및 직무만족도에 관한 연구 - Denture part 근무자를 중심으로 -)

  • Lee, Hwa-Sik;Bae, Bong-Jin;Han, Sok-Yoon
    • Journal of Technologic Dentistry
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    • v.34 no.4
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    • pp.391-402
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    • 2012
  • Purpose: This study was survey on future job vision and its pride (self-esteem) of dental technicians. It also investigates the future vision on their major of job (denture) and its awareness to improve the work environment and enhance their satisfaction towards job and duties. Methods: In order to research job and its duty satisfaction of dental technicians who mainly work at denture part, certified questionnaire was modified and upgraded for its use. Collected documents were used by 'Window SAS 8.0 Program' for analysis. The significance of the test related to the items and its standards has been decided for p<0.05. To find out the differences between choices when choosing career and the duty satisfaction, t-test, one-way ANOVA and two-way ANOVA have been used. Results: Following research findings show: 1. There was high self-esteem towards the job as dental technicians but low in future job vision. 2. It has been found that if satisfaction on their job (dental technician) is high then also their satisfaction on its duty (denture part) is high. 3. The factors that affects mostly on duty satisfaction of denture part are 'the contribution on improving oral cavity of people'(${\beta}$=0.33118), 'The possibility of growth of person's job choices'(${\beta}$=0.30035) and 'person's satisfaction on choosing job'(${\beta}$=0.16069). 4. If there is an increase level on the contribution of improving people's oral cavity, the possibility of growth of person's job choices and the person's satisfaction on choosing job, then there is also high growth in denture part's duty satisfaction. 5. It has been found that if there are more employment histories of denture part, the duty satisfaction of denture part were also high. On the other hand, the more employment history of dental technicians get, the duty satisfaction of their denture part was low. Conclusion: Following research results show that there is high self-esteem towards the job as dental technicians but the vision towards future was low. This shows that there is no bright future on dental technology. Therefore, it is important that not only to improve the work environment and pay rise on dental technologists but also to satisfy them. Various program developments and continuous research are needed to increase satisfaction.

The Relationship among Perception of Ethical Values, Ethical Conflicts, and Job Satisfaction of Home Care Nurses (가정전문간호사의 윤리적 가치인식, 윤리적 갈등 및 직무만족도와의 관계)

  • Cho, Young-Yi;Han, Sung-Suk
    • Journal of Home Health Care Nursing
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    • v.12 no.1
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    • pp.1-40
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    • 2005
  • This study investigated the relationship among home care nurses' perception of ethical values and conflicts and job satisfaction. The subjects of the study were 257 home care nurses working at 101 institutions involved in home care practice, the data were collected between December 28, 2004 February 14, 2005. The instruments were perception of ethical values, ethical conflicts, and job satisfaction and it was revised by the author. The reliability of Cronbach's a was .74, .93, .85, respectively. SAS 8.0 program was used to analyze the data, and frequency, percentage, unpaired t-test, ANOVA, $Scheff\`{e}$ test, and Pearson's Correlation Coefficient were calculated for data analysis. Followings are the results of the study: The scores of home care nurses' perception of ethical values were average 3.8points (5points scale). There was no significant difference between the groups according to general characteristics such as age (P=.001), religions (P=.001), ethical standard (P=.018), and current job satisfaction (P=.000). The scores of home care nurses' ethical conflicts were average 2.9points (5points scale). There was significant difference according to pay (P=.008) and employment status (P=.001) of general characteristics; conflicts was showed to go up with higher pay and temporary employment status. The scores of home care nurses' job satisfaction were average 3.3points (5points scale). There was significant difference among the groups according to age (P=.023), pay (P=.001), job career of home care (P=.030), and current job satisfaction (P=.000) of the general characteristics. There was significant positive correlation between subject's perception of ethical values and ethical conflicts (P=.004) and perception of ethical values and job satisfaction (P=.005). However, ethical conflicts and job satisfaction (P=.772) showed negative correlation, but it was not significant. With the results, home care nurses showed firm perception of ethical values and relatively higher job satisfaction. However, they showed ethical conflicts regarding the lack of administrative support and dignity of human life. In conclusion, It requires some alternative measures to solve the ethical conflicts and to enhance job satisfaction of home care nurses through the support in policy, continuous ethics education, rewarding system, and introducing laws to protect individual home care nurses.

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A Comparison of Physical Health, Anxiety and Depression between the Dan-Jeon Breathing Trained group and non-trained group (단전호흡 수련인과 비수련인의 신체건강, 불안, 우울정도 비교)

  • Hyun, Kyung Sun;Kang, Hyun Sook;Ahn, Dong Hwan
    • Korean Journal of Adult Nursing
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    • v.12 no.2
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    • pp.245-255
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    • 2000
  • The purpose of this study is to compare the physical health, anxiety and depression of the Dan-Jeon Breathing trained group with those of a non-trained group and to analyze the relationship between the training period of Dan-Jeon Breathing method and physical health, anxiety, and depression. The number of people in the Dan-Jeon Breathing trained group over 3 months was 149 and in the non-trained group 142. Data were collected from August to October 1999. As tools, 35 physical symptom questions were chosen from The Cornell Medical Index modified by Nam(1965) and from the Symptom Checklist-90-Revision(SCL-90-R) by Kim(1984); 10 questions on anxiety and 13 questions on depression were used in the study. The statistics of the study were gathered by using SPSS Window; the analysis was made by applying $X^2$-test, t-test, Pearson correlation, ANOVA and Scheffe tests. The results were as follows. 1. The Dan-Jeon Breathing trained group had lower physical symptom score and showed less anxiety and depression than the non-trained group, which supported the 1st, 2nd, 3rd hypotheses. 2. The longer the training period of Dan-Jeon Breathing, the lower the physical symptom score, which supports the 4th hypothesis, but the 5th and, 6th hypotheses were not supported because anxiety and depression did not get lower as the training period of Dan-Jeon Breathing got longer. 3. The physical symptom score, anxiety and depression that were made by the general characteristics of Dan-Jeon Breathing trained group were analyzed. As a result, the physical symptom score of women was greater than that of men. Physical symptoms score and the rate of anxiety and depression were different by education levels. The degree of anxiety was different by age. Those who have a religion have a higher physical symtoms score than people who have no religion. There was no difference in physical health score, anxiety and depression according to marital status, economic status and occupations. The results suggest that the physical and mental health status of Dan-Jeon Breathing trained group is better than that of the non-trained group. Physical symptoms scores gets lower as the training period of Dan-Jeon Breathing gets longer which results in the improvement of physical health status.

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Consumer Attitudes toward the Sales Promotions of Retail Apparel Stores With Respect to Purchase Intention (의류 소매점의 판매촉진에 대한 소비자 태도와 구매의도)

  • Kyung, Moon-Soo;Hwang, Choon-Sup
    • Journal of Distribution Science
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    • v.13 no.3
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    • pp.51-60
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    • 2015
  • Purpose - Among potential marketing strategies, the most efficient method to encourage purchase intention is through sales promotions. Sales promotions also serve to enhance customer satisfaction, which is closely related to the incidence of repurchases. Therefore, the success of retail stores greatly depends on the effectiveness of their promotional activities. The present study aimed to obtain the necessary information for apparel stores to establish more effective promotional activities. To this end, the study's specific research questions were to examine 1) consumer satisfaction with the recent sales promotions of retail apparel stores, 2) the levels of consumer preferences for different types of sales promotions (cash discounts, promotional gifts, prize drawings, discount coupons, stamp cards, or mileage cards), and 3) the differences in purchase intention according to preference levels for different types of sales promotions. Research design, data, and methodology - The research employed a descriptive survey method using a self-administered questionnaire. The sample consisted of 700 men (n=234) and women (n=466) ranging in age from their 20s to their 50s and residing in the Seoul area. Data were analyzed through methods including factor analysis as well as Cronbach's α coefficients, the t-test, ANOVA, and the Duncan test. Results - Differences among consumer preferences were identified for each type of sales promotion according to the purchase amount and the customer's age. In relation to purchase amounts below 500,000 won, participants in their 50s have lower preferences for price discounts than those in their 20s or 30s, whereas participants in their 40s or 50s have lower preferences for stamp cards and mileage cards than those in their 20s. When the purchase amount is greater than 500,000 won, housewives have higher preferences for promotional gifts than respondents with other occupations. However, no gender differences were found with regard to preference levels for the different types of sales promotions. Respondents generally exhibited mediocre satisfaction with the sales promotion events of retail apparel stores. They also expressed negative opinions about sales promotions when such promotions lead to high prices, as well as dissatisfaction with the poor quality of promotional gifts. It was also found that, regardless of the purchase amount, the groups with higher preferences for discount coupons and mileage cards displayed higher purchase intentions. Only when the purchase amount is greater than 200,000 won did the group with higher preferences for lottery system promotional gifts express higher purchase intentions. On the other hand, for all purchase amount sizes, there were no differences in purchase intentions according to preferences for cash discounts, promotional gifts, or stamp cards. Conclusions - The results revealed that greater effort must be devoted to enhancing consumers' satisfaction levels with the promotional activities performed by apparel retail stores. The results also showed that it is necessary to differentiate among sales promotion strategies according to preference levels for different types of sales promotions, purchase amounts, and target consumer ages.

The Comparison of the Physical Characteristics between Boys and Girls at Puberty (사춘기 남녀 청소년의 인체 특징에 관한 비교 - 만 $10{\sim}14$세를 중심으로 -)

  • Jeong, Hwa-Yeon;Kim, Kyung-A;Suh, Mi-A
    • The Research Journal of the Costume Culture
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    • v.15 no.1 s.66
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    • pp.37-57
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    • 2007
  • The purpose of this study was to analyze the body measurements of boys and girls at puberty and to provide the fundamental data for pubescent apparel manufacturers to produce clothing that reflect their physical characteristics. A total of 549 boys and 529 girls aged between 10 and 14 were measured in the capital area from March 4 to April 3, 2004. Data were collected from 35 anthropometric items and 12 photographic items per a person. SPSS Ver. 12 program was used in data analysis including means, standard deviation, t-test and Duncan test. The main results of this study were as follows. They showed the significant difference of their growth in accordance with the increase of their ages. There were also the difference between boys and girls. As for height and length items, boys showed a slow growth at the age of $10{\sim}11\;and\;12{\sim}13$. Those at the age of $11{\sim}12\;and\;13{\sim}14$ showed rapid growth. That is, an active growth was followed by a slow growth and that phenomenon repeatedly occurred. On the other hand, girls showed remarkable growth at the age $10{\sim}11$ and the growth rate gradually slowed down afterward. Regarding circumference items, boys at the age of $11{\sim}12\;and\;13{\sim}14$ showed remarkable growth. This results showed that boys at the age of $11{\sim}12$ had vertical growth and horizontal growth at the same time and for those at the age of $13{\sim}14$, growth was more conspicuous in horizontal direction. Meanwhile, for girls, the growth rate was high at the age of $11{\sim}12$, somewhat later than the age of the growth of height and length. As for breadth-related items and depth-related items, for both sexes two items grew steadily throughout the ages, breadth-related items showed a higher growth rate than that of depth-related items. This study analyzed the body measurements of pubescent boys and girls and the results showed that, for boys, an active physical growth took place at the age of 13 according to previous studies, but the findings of this study suggested that the phenomenon now occurred at the age of $11{\sim}12$, which proved that physical growth took place earlier than before. Also, an active growth was followed by a slow growth. Girls at puberty showed remarkable growth of height at the age of $10{\sim}11$ that is consistent with previous studies and then showed horizontal growth at the age of around 12, having a voluminous body shape.

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A Comparative Study of the Effect of Two Analgesic Administration Methods on Post Operative Pain (수술환자에 었어서 마약성 진통제의 자가투여 방법과 근육주사 방법의 효과에 대한 비교연구)

  • 이정화
    • Journal of Korean Academy of Nursing
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    • v.27 no.2
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    • pp.401-410
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    • 1997
  • An acute pain is the common experience following surgery. Pain is a most miserable experience in person and most preoperative patients have fear o! postoperative pain. In nursing, it is very important to understand and relieve the pain of post oprative patients as much as possible. This study was designed to compare the descriptive patterns of pain between group of Patient Controlled Analgesia and group of traditional Muscular Injection in surgcal patients. This information can be utilited as data of understanding nursing care and treatment planning for pain in surgical patients. The subjects in this study were 45 post-hysterectomy patients in Gynecology ward in C. N. U. H., in Taejon. Data was collected from May 12 to June 27. 1996. The instrumants used for this study were subjective Visual Analog Scale, Objedive nonverbal pain scale composed of Facial Apperance. Vocal Sound Change, and Sweating score. and the Melzack's Mcgill pain Qusetionaire. nine Items of Developmental Pain Intensity Scale by Lee En Ok. Analysis of data was done by using S. P. S. S. percentage, t-test, x²-test. ANOVA, and Repeated measure ANOVA. Results were obtained as follows. 1. Hypothesis 1 : There was very highly statistically significant difference in subjective self-report pain score(Visual Analog Scale) between PCA Group and IM Group(P=0.0001). 2. Hypothesis 2 : There was very highly statistically significant difference in muscle strength score (Visual Analog Scale) between PCA Group and IM group(P0.0001). 3. Hypothesis 3 : There was very highly statistically significant difference in facial appearance score between PCA Group and IM group(P=0.0001). 4. Hypothesis 4 : There was very highly statistically significance difference in vocal sound change score between PCA Group and IM group(P=0.0001). 5. Hypothesis 5 : There was no statistically significant difference sweating scores between PCA group and IM group(F=2.50, P=0.1220). But, postoperation time of 12, 24 was statistically difference between two groups(P=0.0001). So, it was partially supported. 6. Hypothesis 6 : There was very highly statistically significant difference in vocabulary pain score between PCA Group and IM group. 7. Hypothesis 7 : There was very highly statistically significant difference in amounts of total analgesic between PCA Group and IM group. There was very highly statistically significant difference in Visual Analog Pain Score, Facial Appearance Score, Vocal Sound Change Score, Vocabulary Score, amounts of total analgesic between PCA group and IM group. So, It is verified to asses of postoperative pain with VAS, Checklist of facia appearance, vocal sound change, and sweating, and Vocabulary Scale.

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The effect that the composition handling of aromatherapy and abdominal massage treatment reaches the middle-aged woman's body ingredient transformation (향요법과 복부마사지의 복합처치가 중년 여성의 체 성분 변화에 미치는 영향)

  • Kim, Yean-Sook
    • Korean Journal of Human Ecology
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    • v.17 no.6
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    • pp.1225-1236
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    • 2008
  • The purpose of this study is to determine the effect of aromatherapy, showing how the composition handling of aromatherapy and abdominal massage treatment reaches body ingredient transformation. The subjects for this research were total 18 middle-aged females in Seoul; aroma massage group of 7 females, aroma inhalation and water bathe group of 5 females, abdominal massage group of 6 females by jojoba oil without any medical effect. This clinic trial was held from July 1, 2008 to Aug.14, 2008. I held this clinic trial under the same condition after and before this clinic. A standard tape and OLYMPIA 3.5 of S hospital were used at the body measuring for subjects after and before clinic trials. I got Average and standard deviation by data analysis by SPSS Win. Ver.14.0. I did paired t-test for the comparison of before and after, and repeated measure ANOVA for between two groups or among three groups'. The verification was held Duncan Test. The results of this study were as follows: 1. Body mass quotient (F=2.86, p= .063) and Body region (F=1.34, p= .279) among three groups showed no meaningful difference, but weight meaningful difference and aroma massage group showed the greatest difference of body measure change quantity. 2. In change quantity of abdomen girth, Waist circumference and WHR, abdomen girth (F=4.56, p= .012) and Waist circumference (F=4.37, p= .031) showed a meaningful statistical difference. The result of subsequent inspection showed that there was a meaningful difference among three groups and aroma massage group was best. 3. In Cell quantity, Body region quantity and Muscle volume, Body region quantity (F=2.76, p= .182) and Muscle volume (F=3.12, p= .054) showed no difference, but Cell quantity (F=3.79, p= .040) showed a meaningful difference. In the comparison of three groups there was no difference, but aromatherapy group showed more change quantity than any other group. According to the result of this study, the composition handling of aromatherapy and body massage was effective in the decrease of Abdominal fatness and Waist circumference, Weight and the increase of Cell quantity. so I suggest that woman use this therapy in the program of obesity management for her health improvement.

A Study on Attitude of Clinical Nurses Toward Professional Nursing (일부지역 간호사의 간호전문직에 대한 태도 조사 연구)

  • Park, Youn-Suk
    • The Korean Nurse
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    • v.31 no.5
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    • pp.39-52
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    • 1992
  • As society has changed, the demand for improved health care has increased. To keep up with this type of social need, professional nursing care is seeking to efficiently satisfy the care needs of human beings. The goal of clinical nurse is to meet nursing care needs of patients. This study was designed to survey attitudes of nursing profession of clinical nurses. The following specific 5 objectives were investigated and the attitudes of clinical nurses were determined. 1. The social position of nursing as a profession. 2. Factors influencing the development of nursing. 3. The future of nursing. 4. Their work. 5. Job satisfaction. The subjects consisted of 120 nurses who are working at 5 general hospital over 150 beds Ill CHONG NAM. The nurses were surveyed by means of a questionnaire from May 24 to Jun 15, 1992. The tool used for this study was based on earlier work by Lee, Nam Hi(1978) and Kim, Myong Hee(1984). Computer was used for Data Analysis. Frequency and Percentage were used to examine the genera] characteristics of the subjects. ANOV A and t.test were used to test the relation in characteristics of the subjects and attitudes Loward nursing prfession. The finding of this study were as follows; 1. Social position of nursing as a profession; The response with the highest agreement was "The professional nursing organization is less power. ful than the other professional organization" 3.333 points, and the response with the lowest agreement was "Nursing get a big salary" 2.225 points. 2. Factors influencing the development of nursing; the response with the highest agreement was "Hospital environment should be improved" 4.267 points, and the response with the lowest agreement was "Nurses satisfaction with salary"2.175 points. 3. The future of nursing; the response with the highest agreement was "Along the deveiopmem of science technique will be elevated educational state and graduate to needed in nursing" 3.958 points, and showed generally positive response toward the future of nursing. 4. Their work; the response with the highest agreement was "Work loading due to nursing staff insufficient" 4. 308 points, the response with the lowest agreement was "Nurses are unkind to patient" 2.508 points. 5. The subject's view regarding job satisfaction;it showed that "Interpersonal nursing staffs" 3.508 points, showed generally unsatisfactory response toward job satisfaction. 6. The relationship between the subject's attitudes toward professional nursing and general characteristics showed a significant difference statistically in regard to the field of work(P<.05). 7. The relationship between general characteristics and the subject's attitudes toward factors influencing the development of nursing showed a significant difference statistically in regard to the age and the status of position(P<.05). The subject's attitude toward the future of nursing showed a significant difference statistically in regard to the age and the period of nursing career and the field of work(P<.05, P<.005). The subject's attitude toward the job satisfaction showed a significant difference statistically in regard to the age and the period of nursing career and the status of position and the field of work(P<.005).

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Analysis on Energy Consumption Required for Building DTLS Session Between Lightweight Devices in Internet of Things (사물인터넷에서 경량화 장치 간 DTLS 세션 설정 시 에너지 소비량 분석)

  • Kwon, Hyeokjin;Kang, Namhi
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.8
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    • pp.1588-1596
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    • 2015
  • In the Internet of Things (IoT), resource-constrained devices such as sensors are capable of communicating and exchanging data over the Internet. The IETF standard group has specified an application protocol CoAP, which uses UDP as a transport protocol, allows such a lightweight device to transmit data. Also, the IETF recommended the DTLS binding for securing CoAP. However, additional features should be added to the DTLS protocol to resolve several problems such as packet loss, reordering, fragmentation and replay attack. Consequently, performance of DTLS is worse than TLS. It is highly required for lightweight devices powered by small battery to design and implement a security protocol in an energy efficient manner. This paper thus discusses about DTLS performance in the perspective of energy consumption. To analyze the performance, we implemented IEEE 802.15.4 based test network consisting of constrained sensor devices in the Cooja simulator. We measured energy consumptions required for each of DTLS client and server in the test network. This paper compares the energy consumption and amount of transmitted data of each flight of DTLS handshake, and the processing and receiving time. We present the analyzed results with regard to code size, cipher primitive and fragmentation as well.