• Title/Summary/Keyword: Paired t-test

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A Comparison Test on Difference of Homemakers' Instrumental Values by Objects (가치대상에 따른 주부의 도구적 가치의 차이 비교 - 가정생활과 가정외의 생활을 중심으로 -)

  • 황덕순
    • Journal of Families and Better Life
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    • v.15 no.4
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    • pp.355-368
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    • 1997
  • This study explored the instrumental values of homemakers by object family living and other social living. Homemakers' instrumental values on family living were compared with those on other social living. Through this it make to explain differences in instrumental values on 2 objects. 650 homemakers were adapted as data. The data were analyzed by frequency percentage means one-way ANOVA duncan-test and paired T-test The results showed significant differences in instrumental values by objects.

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A Study on the Level of Satisfaction and Awareness Regarding the Importance of outdoor and Indoor Environments in Child Care Centers - On the Basis of Different Viewpoints from the Parents and the Teachers - (보육시설 실내.외 환경에 대한 만족도와 중요성의 인식정도 - 학부모, 보육교사의 차이를 중심으로 -)

  • 고경필
    • Journal of the Korean Home Economics Association
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    • v.41 no.2
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    • pp.141-153
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    • 2003
  • The purpose of this study was to analyze and determine the level of the satisfaction and awareness of facilities in child care centers among teachers and parents. Special attention was given to both the indoor and outdoor environments from the viewpoints of both parents and teachers. The subject of this research focused on parents who leave their children at child care centers, and teachers who work for the center. The data was compiled by performing both T-tests and paired T-test. The information was processed by a program called SPSS WIN 10.0. The results were as follows ; 1. (a) With regard to the satisfaction of the external and internal facilities : It was determined that both the play rooms and the wall-pattern arrangements were satisfactory to both the parents and the teachers. (b) Regarding the awareness of the importance of facilities, while the parents focused more on the play rooms and the external environments, the teachers placed more importance on the bathrooms and the play rooms. 2. In the paired T-test that determined whether their individual opinions were different in terms of the satisfaction and awareness of facilities, it was interesting to see that both the parents and the teachers showed significant differences in their opinions and priorities about the porches, the play rooms, the bathrooms and the wall-pattern arrangements. In general, their awareness was much higher than the satisfaction with these facilities. 3. In the T-test that determined whether there were any tendencies in the satisfaction and awareness respectively in the two groups, the satisfaction rate was higher among the parents than the teachers. In terms of the awareness of the importance of the facilities, the teachers rated the bathrooms and the wall-pattern arrangements as a priority.

Development and effects of a psychosocial adaptation program for North Korean adolescent defectors

  • Lee, In-Sook;Jeon, Jung-Hee
    • Child Health Nursing Research
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    • v.27 no.3
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    • pp.243-255
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    • 2021
  • Purpose: This study aimed to develop and examine the effects of a psychosocial adaptation program for North Korean adolescent defectors. Methods: This quasi-experimental study was conducted with 28 North Korean adolescent defectors who were recruited through alternative schools. The experimental and control groups consisted of 14 participants each. A program was conducted across eight sessions, each lasting about 90-120 minutes. The data were analyzed using the x2 test, t-test, paired t-test, and analysis of covariance. Results: No significant differences were observed in the score changes for psychosocial adaptation (t=0.25, p=.808), post-traumatic stress symptoms (t=0.32, p=.749), cultural adaptation stress (t=0.05, p=.957), and self-efficacy (t=0.35, p=.726) in either group before and after the intervention. No intergroup differences were observed for psychosocial adaptation (t=0.12, p=.902), post-traumatic stress symptoms (t=0.07, p=.946), cultural adaptation stress (t=0.01, p=.994), and self-efficacy (t=0.58, p=.570). Conclusion: These findings suggest that psychosocial adaptation, stress, and self-efficacy cannot be improved by a short-term intervention program alone. It was also determined that the cultural characteristics of the North Korean adolescent defectors were not sufficiently considered before implementing the program. Therefore, it is essential to provide an in-depth orientation for the participants before implementing the program.

Experience of Aging Simulation Clothes among Undergraduate Nursing Students (간호대학생의 노인체험복 착용경험에 관한 연구)

  • Jeong, Hyesun;Kim, Eungjong;Kim, Junghee
    • 한국노년학
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    • v.30 no.1
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    • pp.141-157
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    • 2010
  • This quasi-experimental study examined the experience of simulation clothes and its effects among undergraduate nursing students. Method: The experimental group consisted of 44 sophomore students in a diploma nursing program, while 41 students comprised the comparison group. Only the experimental group experienced the functional decline of aging after taking on simulation clothes. Homogeneity between the groups was analyzed using t-test, and Fisher's exact test. Paired t-test and t-test were adopted for testing changes of attitudes and awareness of supporting elders. In addition, contents of students' reports of the aging simulation experience were analyzed. Results: No significant quantitative effect was observed in attitudes toward elders and awareness of supporting elders. However, the simulation experience seemed to have enhanced students' understanding of elders and of basic elder care as well. Furthermore, the students could think of preparing for their later lives. Conclusion: The experience of simulation clothes is a meaningful learning opportunity in gerontological nursing curriculum. Students' experiences need to be shared and reinforced in a discussion session. Safety should be secured in the process of the experience. The simulation experience can be further developed to raise its quality.

Comparison of Effects of Nursing Process Reeducation according to Academic Credit Bank System Student Nurses' Clinical Experience - Expertise, Critical Thinking Disposition, Clinical Decision Making - (학점은행제 교육과정 간호사들의 임상경력에 따른 간호과정 재교육의 효과 비교 - 숙련성, 비판적사고 성향, 임상의사결정 능력을 중심으로 -)

  • Yi, Yeo-Jin
    • Journal of Korean Academy of Nursing Administration
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    • v.15 no.2
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    • pp.275-283
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    • 2009
  • Purpose: This study investigated the effects of reeducation of nursing process on nurses' expertise, critical thinking disposition, and clinical decision making. Methods: Data were collected from March to June, 2007. The subjects were 47 Academic Credit Bank System Student Nurses. They were taught 'nursing process' during 1 semester(15weeks). 47 nurses were divided into three groups according to clinical experience(under 3 years, 3 to under 5 years, 5 years or more). After 15 weeks, the effects of education were compared using a paired t-test between pre-test and post-test. Results: There was a significant difference in the 3 to under 5 years experienced nurses's expertise(t=-3.659, p=.004) between the pre-test and post-test. There was a significant difference in the 5 years or more experienced nurses's expertise(t=-5.781, p<.001) and critical thinking disposition(t=-3.345, p=.003) between the pre-test and post-test. There were no significant differences in clinical decision making(accuracy, proficiency, and confidence) of 3 groups. Conclusion: Reeducation of nursing process is a valuable teaching and an evaluation strategy for 5 years or more experienced nurses to improve expertise and critical thinking disposition. We need to develop continuing education program for improving nurses' clinical decision making.

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The Reliability of Kinematic Analysis for Distal Upper Extremity in Normal Person (정상인의 상지 원위부에 대한 운동학적 분석의 신뢰도)

  • Byun, Jae-Hyun;Hong, Wan-Ki
    • Journal of Applied Reliability
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    • v.16 no.2
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    • pp.147-154
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    • 2016
  • Purpose: To evaluate statistical differences among three measurements of range of motion (ROM) with Rapael Smart Glove (RSG) group 1, 2 and manual goniometer group. To investigate reference value of the kinematic analysis for range of motion (ROM) of distal upper extremity with Rapael Smart Glove (RSG). Methods: Sixteen normal persons without limitation of motion (LOM) enrolled in the study. The study was performed at two separate times and by two investigators on 16 normal adults. We compared ROM with RSG for measuring joint angles. We compared degrees of forearm supination/pronation, wrist flexion/extension and radial deviation/ulnar deviation during ROM of 16 participants using RSG. After one week, degrees of each motion were measured in the same way by other investigator to evaluate the reliability. Results: Statistical differences among three groups were showed. Most results of paired t-test between two RSG groups were over 0.05 and exceptions are supination, extension, and finger %. Conclusion: Our findings demonstrate that ROM of normal persons obtained by kinematic analysis with RSG are not valid as normal reference value for distal upper extremity motion. But, the reliability of between two RSG groups was showed with paired t-test and Pearson's correlation except supination, extension and finger %.

Simulation-based Design and Performance Analysis of Two Phase Banker's Algorithm for Efficient Operation of Capacitated Automated Production Systems (유한용량 자동생산 시스템의 효율적인 운용을 위한 시뮬레이션 기반 2단계 은행가 알고리즘(BA) 설계 및 성능분석)

  • Shin, Hee Chul;Choi, Jin Young
    • Journal of the Korea Society for Simulation
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    • v.21 no.4
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    • pp.1-9
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    • 2012
  • This paper suggests a two-phase look-ahead Banker's algorithm for efficient operation of capacitated automated production systems. The algorithm improves the ability of detecting safe states of the previous one by considering the possibility of processing each job to completion at once as well as partial movement between jobs. The improved performance of the proposed algorithm is testified by performing numerical experiment in terms of (i) detection rate of safe states and (ii) system throughput and verified by using paired t-test.

Analysis of Accident Factors at Arterial Roads Using Tobit Model (Tobit 모형을 이용한 간선도로 사고 요인 분석)

  • Kim, Kyung Hwan;Park, Byung Ho
    • International Journal of Highway Engineering
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    • v.15 no.2
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    • pp.131-138
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    • 2013
  • PURPOSES : The intents of the study are to identify the accident factors and to demonstrate the potentials of tobit model as a tool to study the number of accidents on arterial roads segments. METHODS : This paper uses a tobit regression as a methodology to analyze the factors affecting the number of accidents. In pursuing the above goal, this study gives particular attentions to analyzing the data of 2,446 accidents (1,610 in major arterial roads and 836 in minor arterial roads) occurred on arterial roads in 2007 to 2010. RESULTS : First, 3 accident models which were classified by total arterial roads, major arterial roads and minor arterial roads, and were all statistically significant were developed. Second, the exclusive right-turn lane as common variable, and the number of accident, traffic volume, number of lanes, link length, rate of median, number of entrances, number of pedestrian crossings, number of curves, number of bus stops and exclusive left-turn as specific variables of the models were selected. Finally, the paired sample t-test could not be rejected the null hypotheses of three types of models. CONCLUSIONS : Using data from vehicle accidents on arterial roads, the estimation results show that many factors related to roadway geometrics and traffic characteristics significantly affect to the number of accidents.

A Preliminary Study for the Curriculum Development of Community Care Coordinators: Educational Needs Analysis (지역사회 케어코디네이터 교육과정을 위한 기초연구: 교육요구도 분석)

  • Park, Han Nah;Yoon, Ju Young;Jang, Soong-Nang;Nam, Hye Jin
    • Research in Community and Public Health Nursing
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    • v.33 no.2
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    • pp.153-163
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    • 2022
  • Purpose: A care coordinator is an emerging nursing professional role in South Korea. The purpose of this study was to identify educational needs and priorities for care coordinators among nurses. Methods: An online survey was conducted on 661 current or retired nurses from January 30 to February 28, 2021. A total of 17 essential competencies for care coordinators, recognized based on literature review, were used to analyze the educational needs. The data were analyzed using descriptive statistics, a paired t-test, and one-way analysis of variance with SPSS 25.0. The educational needs analysis was conducted by using a paired t-test, the Borich Needs Assessment Model, and the Locus for Focus Model. Results: Five contents were identified as the first priorities for educational needs: 'Health program planning and evaluation', 'Care planning', 'Coordinating community-based services', 'Case management', and 'Transitional care'. The second priorities for educational needs included 'Population health management' and 'Welfare resource linkages via communicating with social workers'. Conclusion: The priority items derived from this study offer underpinning insights for the development of care coordination training program.

A study on the Shipper's Importance and Satisfaction onthe Shipping Service Quality of Air Cargo: Focus on air express and air freight forwarder (화주 기업의 항공 화물 운송 서비스 품질에 관한 중요도-만족도 연구: 항공특송업체와 프레이트 포워더를 중심으로)

  • Go-Eun Hong;Jin-Ho Oh;Keun-Sik Park
    • Korea Trade Review
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    • v.46 no.1
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    • pp.135-154
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    • 2021
  • This study aims to investigate the difference in the perception of shippers on the quality of air freight service between air express and air freight forwarders. This study suggests hypothesis verification and implications on importance-performance between two groups of air express and air freight forwarders. In this study, we find that important variables through paired t-test and importance-performance analysis. As a result of paired t-test, there was a difference in the use variables of the document work variables through computerization in the importance area. In the satisfaction area, there was a difference between the groups in the response to customer request and the response to accidents. The variables that need to improve the focus derived from the importance-performance analysis are document work through computer and response to accidents. It is necessary to observe and manage the response of shippers continuously by holding various transportation schedules in the schedule area, possibility of adjustment of transportation schedule, regular freight and schedule provision.