• 제목/요약/키워드: Paired T-Test

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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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    • 제27권3호
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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.

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

  • 정혜선;김응종;김정희
    • 한국노년학
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    • 제30권1호
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    • pp.141-157
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    • 2010
  • 본 연구는 간호대학생에게 적용한 노인체험복 착용경험을 파악하고 노인에 대한 태도 및 부양의식에 대한 효과를 규명하는 유사실험연구이다. 연구대상자는 노인간호 강의 및 노인체험복 경험이 없는 간호과 학생으로서 실험집단 44명, 비교집단 41명이었다. 실헙집단 학생들은 노인체험복을 착용한 후 시력과 청력기능, 척추 및 관절기능, 손가락기능에 어떤 변화가 나타나는지를 체험하는 활동을 하였다. 집단 간의 동질성 검정은 t-test, $X^2$ test, Fisher's exact test를 이용하였으며, 태도와 부양의식의 집단간 비교에는 t-test와 paired t-test를 적용하였다. 체험소감문은 내용분석을 하였다. 노인체험복 착용경험 후 노인에 대한 태도와 노인부양의식은 유의한 변화가 없었으나 체험소감문의 내용분석에서는 노인의 모습과 행동에 대한 공감적 이해와 노인을 공경하고 배려하겠다는 다짐 등을 보였다. 또한 자신의 노후생활에 대해 슬프고 두려운 느낌을 표현하면서 노후를 위한 자가관리를 생각하였다. 본 연구를 통하여, 노인체험복 착용경험이 실험집단의 노인에 대한 이해, 노인을 대하는 행동, 노인에 대한 간호방법 및 자신의 노후에 대한 준비 등에 대하여 긍정적 사고와 의지를 고취시켰음을 확인하였다. 따라서 이는 노인간호학 교과목에 필요한 의미 있는 학습경험으로 사료된다. 이러한 효과의 양적 검정을 위해서는 첫째, 학습경험을 체계적으로 조직화하고 공유하는 방안, 둘째, 체험의 질을 높일 수 있는 전략의 도입, 셋째, 작은 효과에 민감한 도구를 활용한 반복 연구 등이 필요하며 아울러 체험과정에서의 안전을 위한 철저한 사전교육과 감독이 함께 이루어져야 할 것이다.

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

  • 이여진
    • 간호행정학회지
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    • 제15권2호
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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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정상인의 상지 원위부에 대한 운동학적 분석의 신뢰도 (The Reliability of Kinematic Analysis for Distal Upper Extremity in Normal Person)

  • 변재현;홍완기
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제16권2호
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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 %.

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

  • 신희철;최진영
    • 한국시뮬레이션학회논문지
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    • 제21권4호
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    • pp.1-9
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    • 2012
  • 본 논문에서는 유한 용량 자동생산 시스템의 효율적인 운용을 위하여 기존에 제안된 은행가(BA) 알고리즘의 단점을 개선시킨 2단계 Look-ahead 은행가 알고리즘을 제안하였다. 제안된 알고리즘은 각 job 단위 별 전체 남은 공정의 처리 가능성뿐만 아니라 job들 간의 부분적인 이동 가능성을 동시에 고려하여 시스템 내부에 존재하는 job들의 완성 가능성을 결정함으로서 기존 알고리즘의 안전 상태 식별 능력을 향상시켰다. 수치 실험을 통해 제안된 알고리즘의 향상된 성능을 (i) 안전 상태 탐색율과 (ii) 시스템 Throughput을 기준으로 확인하였으며, paired t-test를 통해 검증하였다.

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

  • 김경환;박병호
    • 한국도로학회논문집
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    • 제15권2호
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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.

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

  • 박한나;윤주영;장숙랑;남혜진
    • 지역사회간호학회지
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    • 제33권2호
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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.

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

  • 홍고은;오진호;박근식
    • 무역학회지
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    • 제46권1호
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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.

Neuromodulation of the median nerve in carpal tunnel syndrome, a single-blind, randomized controlled study

  • Gevher Rabia Genc Perdecioglu;Mehlika Panpalli Ates;Damla Yuruk;Omer Taylan Akkaya
    • The Korean Journal of Pain
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    • 제37권1호
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    • pp.34-40
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    • 2024
  • Background: This study aimed to evaluate the efficacy of pulsed radiofrequency applied using transcutaneous electrodes in carpal tunnel syndrome (CTS). Methods: After randomization, the patients received two cycles of noninvasive pulsed radiofrequency (NiPRF), once weekly, or splinting (the control group) for three months. Clinical evaluations were recorded at baseline and weeks 4 and 8. The Boston Carpal Tunnel Syndrome Questionnaire (BCTQ) was used to determine the functional status and symptom severity. Results: Sixty-two patients were followed up for three months. There was no difference between the groups in the BCTQ scores before and after treatment. The NiPRF group found a significant difference between the BCTQ measurements at all time intervals (paired sample t-test; P < 0.001). In the splint group, there was a significant difference only between the basal-1st month and basal-3rd month (paired samples t-test; P < 0.001). The main effect of the time variable was statistically significant (ANOVA; P < 0.001), but the group variable was not. There was no correlation between the BCTQ results measured at any time and the electroneuromyelogragphy findings in either group. Conclusions: NiPRF effectively improves symptoms and functionality in patients with CTS for up to 3 months. Thus, NiPRF can be considered an easy, safe, and useful alternative treatment modality for CTS.

앱기반 치매예방 인지강화 프로그램 개발 및 효과 검증: 경로당 이용 노인을 중심으로 (Development and effectiveness of a cognitive enhancement program based on a mobile application for preventing dementia: a study focusing on older adults who use senior citizen centers)

  • 정미라;정은;이창경
    • Journal of Korean Biological Nursing Science
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    • 제25권2호
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    • pp.113-122
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    • 2023
  • Purpose: The purpose of this study was to examine the effects of a mobile application on quality of life, wellness, and preventive behaviors against dementia among older adults who use senior citizen centers. Methods: Seventy-two older adults who used senior citizen centers were allocated to an intervention group (n = 36) and a control group (n = 36). The experimental treatment involved a cognitive enhancement program for preventing dementia using a mobile application for 12 sessions over 6 weeks. Data were analyzed using the t-test, chi-square test, Fisher's exact test, paired t-test, and independent t-test. Results: The cognitive enhancement program based on a mobile application was effective for wellness (t = -3.87, p < .001) and preventive behaviors against dementia (t = -3.98, p < .001) for older adults who used a senior center. Conclusion: The mobile application-based cognitive enhancement program developed in this study is recommended as an effective intervention for dementia prevention in older adults.