• Title/Summary/Keyword: Difference-in-Differences(DID)

Search Result 1,346, Processing Time 0.024 seconds

Influence of Education Quality on Satisfaction and Repeated Participation Intention in Agricultural Education Services (농업인 교육서비스 품질이 농업교육의 만족도 및 지속참여의향에 미치는 영향)

  • Kang, Duck-Boung;Heo, Chul-Moo
    • Korean Journal of Organic Agriculture
    • /
    • v.26 no.3
    • /
    • pp.327-349
    • /
    • 2018
  • The purpose of the study focuses on the agriculture education services in the changing rural areas conditions such as population decline, aging society, and returning farmers. The study reviews the effects of agricultural education services on returning farmers and local residents for satisfaction, intention for recommendation, and intention to continue participation. Further, the study aims to investigate any difference in the level of satisfaction for two groups. The results suggested that there is a meaningful difference between return-farmers and local residents. Among the demographic variables, age and income showed a notable difference. However, sex, level of education and type of household did not suggest noticeable differences. In addition, the study accessed agricultural education from a service perspective and analyzed its service quality and customer satisfaction, loyalty and relationship using a service profit chain model. Like the result of most other studies, the analysis showed that these had positive relationships. While the study focused on the efficiency of agriculture education training program in agriculture technology centers, the study carries a meaningful value in that it discovered a meaningful difference in the satisfaction level between returning farmers and locals despite the fact that agriculture education was applied as a part of service. In practical terms, the study pointed out the need for consumer-centered education that reflects the characteristics of the groups rather than standardized education.

Mechanical and Surface Properties for Akaline Hydrolyzed Polyester Fabrics (알칼리 감량가공 된 폴리에스테르 직물의 역학적 특성과 표면특성에 관한 연구)

  • Kim, Kyung-Ae
    • Journal of the Korean Home Economics Association
    • /
    • v.36 no.8
    • /
    • pp.51-61
    • /
    • 1998
  • This paper discussed the assessment of hand of polyester fabrics changed by alkaline hydrolysis. This study analyzed the relations between the change of mechanical property and the hand value according to the weight loss of polyester fabrics. The results are as follows; Objective hand by KES-FB system, revealed that for tensile properties, as the weight loss increased, WT, RT increased and LT decreased. For bending properties, as the weight loss increased, B and 2HB showed smaller values. For shear properties, as the weight loss increased, G, 2HG and 2HG5 decreased. For surface properties, as the weight loss increased, MIU increased, but MMD and SMD did not show any trend. For compression properties, LC, WC and RC did not show significant differences according to the degree of weight loss. In case of hand value, Koshi(stiffness), Hari(anti-drape stiffness), Kisimi(scrooping feeling) and Shinayakasa(flexibility with soft feeling) showed a meaningful results depending on the degree of weight loss. However, Shari(crispness) and Fukurami(fullness and softness) did not show meaningful result. Koshi, Hari and Shinayakasa are high correlation with tensile property, bendibg property shear properties, thickness and weight. Kisimi is high correlation with tensile property, bending property, thickness and weight. Shari, Fukurami and THV did not show any meaningful difference whth any mechanical properties.

  • PDF

Differences in Safety Leadership, Safety Climate, Safety Motivation, and Safety Behavior Based on Participation in the Certification System for Exemplary Laboratories in Safety Management (안전관리 우수연구실 인증제 참여 여부에 따른 안전리더십, 안전분위기, 안전동기, 안전행동 차이 분석)

  • Gyeongyun Kim;Jeong-Hun Won
    • Journal of the Korean Society of Safety
    • /
    • v.38 no.5
    • /
    • pp.58-64
    • /
    • 2023
  • This study aims to analyze the differences between the safety leadership of the laboratory director, safety climate, safety motivation, and safety behavior of research workers based on whether they have participated in the certification system for exemplary laboratories in safety management (CSEL). An online survey was conducted among research workers to analyze the effect of the CSEL. The independent variables used in the survey were participation and non-participation in the CSEL, while the dependent variables were the safety leadership of the laboratory director, safety climate, safety motivation, and safety behavior of research workers. The results demonstrate that the group that participated in the CSEL had statistically significantly higher levels of safety leadership, safety climate, safety motivation, and safety behavior than the one that did not do so. Therefore, it can be concluded that the CSEL has a positive impact on the establishment of an autonomous safety management system in a laboratory by improving the safety culture and safety behavior of research workers. Further, the extrinsic factors, which are subfactors for safety motivation, did not reflect a significant difference between the group that participated in the CSEL and the one that did not. Thus, a reward system for research workers with excellent safety activities should be operated by research institutes since it is necessary to strengthen the intrinsic safety motivation of individual research workers which can be strengthened by compensation. The government should consider measures such as providing research incentives to researchers participated in CSEL.

Grade and Gender Differences in Dietary Behavior, Food Preference and Perception about Body Image of 4,5 and 6th Grade Students in Elementary School (초등학교 고학년 학생의 성별, 학년별, 체형인식도와 식행동 및 식품기호도 비교)

  • Park, Jong;Ro, Hee-Kyung
    • Journal of the Korean Society of Food Culture
    • /
    • v.16 no.2
    • /
    • pp.158-169
    • /
    • 2001
  • This study was undertaken to assess grade and gender differences in dietary behavior, food preference and perception about body image of students in 4, 5 and 6th grades in elementary school in Kwangju. Anthropometric data showed that mean height and weight were $137.98{\pm}6.79cm\;32.69{\pm}6.09kg$, in the 4th grade, $144.11{\pm}6.91cm,\;36.88{\pm}7.60kg$ in the 5th grade and $151.52{\pm}7.47cm,\;42.68{\pm}8.06kg$ in the 6th grade. Height and weight of male and female students of each grade were very similar to those of the Korean standard Growth data. Females in the 5th and 6th grades were taller than those in male students, which suggested the height growth spurt in females. Furthermore, both genders showed marked variability even in the same group. All the three different obesity indices(BMI, Rohrer and % of ideal body weight) showed higher value in males than in females consistently. Male respondents desired taller and heavier body shape while females perceived they were heavy and desired only taller and thinner body image. There were significant differences in satisfaction with height, weight and body image by grade(p<0.05). 36.7% of subjects responded that they did not eat despite hunger. In higher grade they felt guilty after eating sweet things. Strikingly, it was noted a small number of students tried to take a diet pills or vomited on purpose. Data on food preference showed that female did not like sweet food and pork. While male students preferred red meat and chicken. Thus result indicated that there was a great difference in food preference by gender.

  • PDF

Age-related Differences in Ankle-joint Proprioception and Postural Balance in Women: Proprioception of Force Versus Position

  • Kim, Seo-hyun;Yi, Chung-hwi;Lim, Jin-seok;Lim, One-bin
    • Physical Therapy Korea
    • /
    • v.29 no.2
    • /
    • pp.124-130
    • /
    • 2022
  • Background: During postural control, older adults are more dependent on proprioception than are young adults. Ankle proprioception, which plays an important role in maintaining postural balance, decreases with age. Published studies are insufficient to establish a significant age difference in postural sway resulting from the known age-related decrease in ankle proprioception and do not examine various detailed test conditions. Objects: The present study aimed to compare ankle proprioception between older and younger groups along dimensions of position vs. force proprioception and dorsiflexion vs. plantarflexion. The present study also aimed to compare postural sway between young and older women during quiet standing under two sensory conditions. Methods: We recruited seven young women aged 21-24 and seven older women aged 60-63. Ankle proprioception was assessed as the accuracy of the joint position sense (JPS) and the force sense (FS). Postural sway was assessed using center-of-pressure measurements recorded during quiet standing under two sensory positions: eyes open and eyes closed with head tilted back. Results: Older women had lower JPS in dorsiflexion and lower FS in plantarflexion than did younger women. We found no significant age differences in JPS in plantarflexion or in FS in dorsiflexion. We observed a main effect of group on postural sway in two sway parameters out of three. We observed significant differences in JPS with dorsiflexion, and in FS with plantarflexion. Conclusion: Proprioception for ankle plantar flexor decreased more significantly with aging than did that for ankle dorsiflexor, accounting for the impaired postural balance observed in older women.

An Analysis of Teachers' Self-evaluation on Health Teaching Behaviors in Elementary School (초등 학교 교사의 보건수업 행동 평가 분석)

  • 오문식;박영수
    • Korean Journal of Health Education and Promotion
    • /
    • v.15 no.2
    • /
    • pp.81-93
    • /
    • 1998
  • The purpose of this study was to analyze the results of teachers' self-evaluation on their health teaching behaviors, then to furnish the basic data to be able to improve teachers' health teaching activities and the educational issues on the education of teachers. To put above aims into practice, these were required: 1. Are there any differences in the results of self-evaluation on health teaching behaviors factors by teachers? 2. Are there any differences in the results of health teaching self-evaluation whether he/she take P.E as major of study in-serviece training period? 3. Does it have any influence on the results of health teaching self-evaluation whether he or she completed on the job training for the school health? 4. Are there any differences in the results of health teaching self-evaluation by sex and career? To carry out a research for this purpose, the factors of health teaching self-evaluation were divided into the clearness of the procedure, the active interaction, the variety of the ways showing the contents, and the individualization of the procedure. Then a questionnaire form, consisting of 28 specific inquires to evaluate health teaching behaviors, was delivered and conducted by 450 teacher of the elementary school in Kyungki-do. The analysis of data was done by SPSS; producing mean and standard deviation and they were inspected statistically to compare the evaluation levels and find out the differences by teachers' personal variables. The conclusion were as follows: 1. In the self-evaluation level of teachers' health teaching behaviors, teachers showed 68.23 point as are percentile distribution. And it was in order of a school-nurse(71.68), an athletic teacher(67.29), and a class-room teacher (65.66). Score obtained by teacher was statistically significant difference (p〈.001) 2. In the factors affecting to teachers' health instruction, “active interaction” showed the highest score(18.55), “variety of ways showing the contents”(17.38), “clearness of the procedure” (16.70), and “individualization of the procedure” (15.59). In the analysis of the differences by teachers, according to factors, there were significant differences in “active interaction”, “variety of the ways showing contents”, “clearness of the procedure”(p〈.001). 3. Self-evaluation score for graduates from Dept. of P. E in Teachers' collage was not significant difference compared with other majors(p〉.05). 4. Teachers receiving health education was significantly higher self-evaluation score than that of teachers not-receiving health education (P〈.01). 5. Self-evaluation score of female teacher was significant difference compared with that of male teacher (p〈.001). 6. Career (working duration) did not influenced to self-evaluation score on health teaching behaviors (P〉 .05). On the basis of the conclusion of this study, the next are suggested: First, the further studies to make use of the results of health teaching behaviors and to examine the effect are needed. Second, the further studies to examine the relations between academic achievement and teachers' major(a school-nurse, an athletic teacher, and a class-room teacher) are needed. Third, the following studies to improve health teaching by both teachers' self-evaluation on health teaching behaviors and students' evaluation of teachers, and to find out more effective health teaching, are needed. Fourth, Health education for pre-service training course and On-the-Job training program are need the effective factors on the teachers' Health teaching obtained from this study.

  • PDF

A Comparison Study on the Body Types of Korean Women and Korean Women Residing in Japan -Focusing on Women in Their Twenties- (한국 여성과 일본 거주 한인 여성의 체형 비교 -20대를 중심으로-)

  • Seok, Hye-Jung;Lee, Jong-Sook;Im, Soon
    • Journal of the Korea Fashion and Costume Design Association
    • /
    • v.13 no.2
    • /
    • pp.1-11
    • /
    • 2011
  • As a result of comparison analysis on body types of Korean women in their twenties and Korean women residing in Japan, the following results had been found. 1. The comparison of 49 items in physical measurements between the Korean women in their 20's and Korean women residing in Japan resulted in the differences in 33 items. 2. The comparison of the factor analysis results for physical measurements did not reveal big differences. 3. The comparison of the physical shapes according to the grouping resulted in three types each for both groups, with different features for individual types. Women residing in Korea were classified into tall and normal body, normal height with obese body, and short and thin body. Women residing in Japan showed different characteristics with tall and obese body, short and thin body and normal height with obese body. As a result of this study, identical ethnic group was found to take on different body types resulting from sociocultural differences and difference in eating habits if their place of residence differs for a long time.

  • PDF

An Experimental Study on the Occurence of Bacteriuria according to Duration of Insertion, Frequency of Bladder Irrigation & Perineal Care, & Administration of Antibiotics in Patients with Indwelling Catheter (수직도뇨관환자의 요로감염발생요인에 관한 실험적 연구 -요관삽입기간, 삽입방법, 세척횟수, 회음부소독유무, 항생제사용유무를 중심으로 -)

  • 임난영;김분한
    • Journal of Korean Academy of Nursing
    • /
    • v.11 no.1
    • /
    • pp.19-27
    • /
    • 1981
  • This Study was conducted at Intensive Care Unit of H & S Hospitals from Jan 4 to April 7, 1981 on 14mail & 26female adult patients. Each patient was screened and found to have nonbacteriuria in clean catch specimen before catheterization. Clean catch apecimen through Foley catheter were obtained after 24hours, 48hours and 72hours from catheterization. The result of this study is reviewed in a statistical analysis of percentage & Chi Square test to obtain the following findings. 1) The occurenc of bacteriuria in patients according to duration of indwelling catheter. a. 9.1% of the patient showed evidence of bacteriuria 24hours post catheterization specimen and 60% showed 48hours post cathetreization, while 68.4% of the patient showed evidence of bacteriuria 72hours post catheterization specimen. The occurence of bacteriuria in patients were significant differences at 1% level between duration of indwelling catheter. b. Mail patients had no infection 24hours post catheterization, 50% displayed bacteriuria 48hours post catheterization & 62.5% displayed bacteriuria 71hours post catheterization. 11.1% of femail patients displayed infection 24hours post catheterization 66.7% displayed infection 48hours post catheterization and 72.7% displayed infection 72hours post catheterization. There were significant differences at 1% level between bacteriuria occurence of mail & femail patients and the duration of insertion. 2) 56% of those patient who have altered mental state developed bacteriuria, while 40% of those patient who have alear mental state developed bacteriuria. But there was without statistically any significant difference between patient's mental status. 3) The occurence of bacteriuria with the administration of antibiotics in 36 patient was in 50%. The occurence of bacteriuria without the administration of antibiotics in 4 patients was in 50%. But there was without statistically any significant difference between the administration of antibiotics. 4) The occurence of bacteriuria in patients according to frequency of bladder irrigation. 50% of those patient who irrigated twice a day developed bacteriuria, 63.6% of those patient who irrigated once a day developed bacteriuria. The occurence of bacteriuria in patients were significant differences at 1% level between frequency of bladder irrigation. 5) The occurence of bacteriuria in patients who did perineal care once a day was 58.1%, 22.6% of those patient who did perineal care twice a day developed bacteriuria. But there was without statistically any signiticant differences between frequency of perineal care. 6) Most frequent bacteria of all bacterial strains isolated by culture of the urine was E. coli(45%). Enterococci & Staphylococcus were 15% respectively.

  • PDF

The Effects of Body Blade and Thera Band Exercise in Upper Extremity Muscle Strength, Grip Strength and Balance in University Students (바디블레이드와 세라밴드를 이용한 운동이 대학생의 상지근력 악력 및 균형에 미치는 영향)

  • Jo, Min-hyung;Kim, Dong-ho;Kim, In-ha;Lee, Seung-hee;Kim, Sun-kyo;Kim, Young-joo;Choi, Ban-seok;Lee, So-young;Cho, Eui-jin;Kim, Eun-jung;Choi, Hyo-jung;Lim, Kwang-mook;Lee, Yoo-jin;Kim, Kyung-hun
    • Journal of Korean Physical Therapy Science
    • /
    • v.26 no.1
    • /
    • pp.22-34
    • /
    • 2019
  • Purpose: The purpose of this study was to investigate the effects of body blade and Thera band exercise on upper extremity strength, grip strength and balance of university students. Design: Single Blind Randomized Controlled Trial. Method: twenty healthy adults, participated in this study, and were recruited by G University in Gimcheon Korea. The subjects were randomly divided into A group that went through Thera band exercise and B group that went through Body blade exercise. Each group had 10 subjects. All subjects did the experiment for 3 times a week for 3weeks. Spss was used for statistical analysis. Result: 1) Grip strength: After exercising, for the BE group, there were statistically significant differences in dominant and non-dominant hand. However, for the TE group, there were no significant statistical differences in both hands. 2) muscle strength: In the TE group there were no significant statistical differences in the dominant and non-dominant arm. But in the BE group there were differences which were found. 3) balance: After exercising, both groups had no significant statistical difference in medial lateral balance. In anterior and posterior balance, TE group had no statistical significant difference but BE group did. Conclusion: To improve muscle strength balance and grip strength, body blade exercise is more effective than Thera band exercise.

Children's Understanding of the Appearance-Reality Distinction (외양과 실재 간의 구분에 대한 아동의 이해)

  • Park, So Yeon;Rhee, Un Hai
    • Korean Journal of Child Studies
    • /
    • v.17 no.1
    • /
    • pp.289-302
    • /
    • 1996
  • The purpose of the present study was to explore the development of knowledge about the appearance-reality distinction and its relation to children's developing theory of mind. The subjects were 90 children, 15 boys and 15 girls each at the ages of 3, 4, and 5. The performance of the appearance-reality distinction was compared on illusory object, color, pretend event, and picture tasks. The data were collected by individual testing and analyzed by two-way ANOVA with repeated measures. The results showed that there were significant differences between 3-and 4-year-olds in the appearance-reality distinction, while there was no significant difference according to gender or type of tasks. It was also found that children at the age of 3 and 4, committed phenomenism errors more often than intellectual realism errors, while 5 year olds did not show particular differences.

  • PDF