• Title/Summary/Keyword: independent samples t-test

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Effects of Caption-Utilized English Classes on Primary School Students' Character Recognition and Vocabulary Ability (자막을 활용한 영어수업이 초등학생의 문자인지 능력과 어휘력에 미치는 효과)

  • So, Suk;Lee, Je-Young;Hwang, Chee-Bok
    • The Journal of the Korea Contents Association
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    • v.18 no.7
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    • pp.423-431
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    • 2018
  • The purpose of the present study was to investigate the effect of caption-embedded video on character recognition and vocabulary ability of the primary school students, The subjects of this study were the students in two elementary schools in G city, Jeonbuk province. They were divided into two groups including a control group which used utilization video materials without captions, and a experimental group which used utilization video materials with captions. Each group was tested over the course of two months (10 classes). And then a statistical analysis was conducted to find out the effects of captions on character recognition and vocabulary ability through independent samples t-test and paired samples t-test. There were no significant differences in a comparison between the groups, but significant differences were found within the groups. Pedagogical implications based on the research findings and suggestions for further research were also discussed.

Development and Evaluation of a Motivational Interviewing Program for Exercise Improvement in Persons with Physical Disabilities (지체장애인의 운동실천을 위한 동기면담 프로그램 개발 및 평가)

  • Jeong, Jeong Hee;Jeong, Ihn Sook
    • Journal of Korean Academy of Nursing
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    • v.47 no.3
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    • pp.406-419
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    • 2017
  • Purpose: The aims of this study were to develop a motivational interviewing program for exercise improvement in persons with physical disabilities and to examine the effect of this motivational interviewing intervention. Methods: The study employed a nonequivalent control group pretest and posttest design. A total of 62 persons with physical disabilities (30 in the experimental group, 32 in the control group) were recruited from 2 community rehabilitation centers. The experimental group received 8 sessions of a group motivational interviewing program, scheduled once a week, with each session lasting 60 minutes. Test measures were completed before the intervention, immediately after the end of the intervention, 2 weeks later, and 6 weeks after the end of the intervention. Measures included self-efficacy for exercise, decisional balance for exercise, stage of change for exercise, regularity of exercise, exercise maintenance, and independent living ability. Data were analyzed using the ${\chi}^2-test$, Fisher's exact test, Independent samples t-test, and repeated measures ANOVA, conducted using IBM SPSS Statistics version 18. Results: The experimental group showed a significant increase in self-efficacy for exercise (F=50.98, p<.001), benefit (pros) of exercise (F=24.16, p<.001), and independent living ability (F=50.94, p<.001), and a significant decrease in loss (cons) of exercise (F=26.50, p<.001). There were significant differences between the two groups in stages of change for exercise (p<.001), regularity of exercise (p<.001), and exercise maintenance (${\chi}^2=26.61$, p<.001). Conclusion: The motivational interviewing program has the potential to improve exercise levels in persons with physical disabilities.

A Study on the Impacts of Women with Age-related Obesity on Skin Resistance Variability(SRV) (여성의 연령에 따른 비만도가 피부저항변이도에 미치는 영향)

  • Kim, Hyeon-Ju;Jung, Hyuk-Sang;Sohn, Young-Joo
    • The Journal of Korean Obstetrics and Gynecology
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    • v.25 no.1
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    • pp.79-92
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    • 2012
  • Purpose: Obesity affects dysfunction of Hypothalamus-Pituitary-Ovary(H-P-O) axis. Dysfunction of H-P-O axis could be related to Skin Resistance Variability (SRV). This study investigated the impacts of obesity which related to female age on SRV. Methods: We randomly selected 400 women who had taken CP-6000A test and InBody test on the same day at Oriental Hospital of Sangji University from Jan. 2008 to Jun. 2011. In this study, the Body Mass Index(BMI) range of normal group is 18.5~24.9, obesity group is over 25, the age range of childbearing age group is 24~34 years, post-menopause group is 50~65 years. 139 women that met the criteria of this study were assorted by their BMI and age. After detection of SRV, SPSS 19.0 has conjugated for data analysis and the independent samples t-test and paired samples t-test were used to verify the results. Results: At 1st and 2nd trial, the height of 3 area of childbearing age obesity group was significantly higher than that of childbearing age normal group. At 1st and 2nd trial, the height of 1, 2 area of childbearing age obesity group was higher than that of childbearing age normal group, but there were no significant difference. At 1st and 2nd trial, the height of 1, 2, 3 area of post-menopause obesity group was mostly higher than that of post-menopause normal group, but there were no significant difference. Conclusions: This study showed the SRV of obesity group was higher than that of normal group in most of 1, 2, 3 area. Further study will be needed.

Effects of Sex Education Program on Careworkers' Knowledge, Attitudes and Coping toward Sexuality of the Elder (노인 성교육 프로그램이 요양보호사의 성에 대한 지식, 태도 및 대처에 미치는 효과)

  • Yun, Hyeon-Kyeong;Oh, Hyun-Sook
    • The Journal of the Korea Contents Association
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    • v.14 no.12
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    • pp.835-844
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    • 2014
  • The objectives of this study is to identify the Effects of Sex Education Program on careworkers' Knowledge, Attitudes and Coping toward sexuality of the Elders. The experimental design for this study was nonequivalent control group pretest-posttest design. Research was done from September 10, 2013 to October 10, 2013. Participants included a total of 37 subjects. 19 in the experimental group and 18 in the control group. The data were analyzed by frequency, percentage, Pearson's correlation coefficients, Shapiro - Wilk test, ${\chi}^2$-test, Independent Samples t-test, Mann-Whitney U test, paired t-test, Wilcox signed rank test using SPSS/PC WIN 18.0 program. The results showed that program was effective in increasing the knowledge of sex, but attitude and positive coping, negative coping did not differ significantly between the groups. In conclusion, this study showed that sex education could be effective higher sex knowledge of careworkers, but could not be effective sex attitudes and coping. Therefore, it is necessary that develop sex education program to be effective sex attitudes and coping of careworkers.

Trunk Stabilization Muscle Activity in Chronic Low Back Pain Patients during One Leg Stance (만성요통환자의 한발서기 시 체간 안정화 근육의 활성화 변화)

  • Min, Dong-ki
    • Journal of Korean Physical Therapy Science
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    • v.21 no.1
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    • pp.13-20
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    • 2014
  • Purpose : The purpose of this study was to analyze and compare the surface electromyography(EMG) activity of trunk region muscle between normal subjects and chronic low back pain(CLBP) patients during one leg stance. Methods : The subjects were 27 people, were consisted of 12 subjects who don't have low back pain and 15 subjects who have low back pain from 19 to 28 year of age(mean age 22.22). We used surface EMG to evaluate the activity of the Rectus abdominis, External abdominal oblique, Quadratus lumborum, Gluteus medius muscle. We used independent two samples t-test for statistical data. Results : The result of this study showed that the maximal voluntary isometric contraction(%MVIC) ratio of the trunk muscles was higher in patients with CLBP than in normal subject. But there were no statistically significant differences. There were statistically significant differences of the activity of the Quadratus lumborum, Gluteus medius muscle(p<0.05).

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Effect of Thought s of Suicide of Elderly that Care for a Chronic Invalid (노인의 자살생각에 영향을 미치는 생태체계요인 -중증만성질환자 돌봄 노인을 중심으로-)

  • Choi, Sin-Ae;Ha, Kyu-Soo
    • The Journal of the Korea Contents Association
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    • v.12 no.6
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    • pp.265-279
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    • 2012
  • In this study, I tried to find out the ecosystem factors which influence suicide thoughts of elderly that care for a chronic invalid. Ecosystem factors are consist of personal system, familial system and social system, tried to analysis ecosystem factors with characteristics of social population that influence suicide thoughts. For the study, I collected 274 samples from people of 55 year-old care a chronic invalid adults who reside of in Gyeonggi-do. I used factor analysis, reliability analysis, multi-regression, t-test, ANOVA with SPSS 18.0. The results are as follows. First, suicide thoughts had affected by personal characteristics and the duty of supporting selected independent variable. Second, familial system as familial characteristics and familial support had a strong influence on suicide thoughts by long-term care and deficient familial support. Third, the result of study, social support and participation of social activities apply as independent variable then every factors of social support are negative influence but participation of social activities are not influence.

Children's Intelligence, Concept of Conservation, and the Relations With Learning English (아동의 지능, 보존개념의 발달과 영어학습과의 관계분석)

  • Woo, Nam Hee;Kim, Hyun Shin
    • Korean Journal of Child Studies
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    • v.25 no.1
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    • pp.1-12
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    • 2004
  • This study investigated the relations of children's age, intelligence, and the concept of conservation to their learning of English. Ten 4-year-old children from 1 child-care center and 13 7-year-old children from 1 elementary school were tested after completion of 8 sessions of experimental English classes. Children's intelligence was measured by K-WPPSI for 4-year olds and K-WISC for 7-year-olds. Children were tested for number and liquid conservations. A Korean teacher with 11 years of experience of teaching children at American elementary schools taught the 2 groups with the same subjects and methods. Data were analysed by independent samples t-test, Mann-Whitney U test, and Pearson's r. The results showed that children's age and the concept of conservation were related to English learning. No statistically significant relationship with IQ was found.

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A Study on Overweight and Obesity in Childhood (일 지역 초등학교 고학년 학생의 과체중에서 비만으로 진행요인)

  • Yoo, Jang-Hak;Choi, Hee-Jung;Kim, Young-Me
    • Journal of East-West Nursing Research
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    • v.16 no.2
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    • pp.156-163
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    • 2010
  • Purpose: The purpose of this study was to investigate factors associated with childhood obesity. Methods: In this descriptive study, the number of participants was 78 4-6th grade students in a primary school, and the subjects were overweight or obese. Data were collected for 10 days from June 1 to 10 in 2009. The data were analyzed using descriptive statistics, independent-samples t-test, $X^2$-test, and multiple logistic regression. Results: Mother's occupation is a statistically significant factor in a bivariate analysis. In multiple logistic regression analysis, the statistically significant factors were mother's occupation (OR=0.17, 95% CI=0.04-0.70) and dietary attitudes (OR=0.08, 95% CI=0.01-0.66). Conclusion: For an effective obesity management program in childhood, it is necessary to consider a mother occupation and dietary attitudes.

The effect of thickness and translucency of polymer-infiltrated ceramic-network material on degree of conversion of resin cements

  • Barutcigil, Kubilay;Buyukkaplan, Ulviye Sebnem
    • The Journal of Advanced Prosthodontics
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    • v.12 no.2
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    • pp.61-66
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    • 2020
  • PURPOSE. The aim of the present study was to determine the degree of conversion of light- and dual-cured resin cements used in the cementation of all-ceramic restorations under different thicknesses of translucent (T) and high-translucent (HT) polymer-infiltrated ceramic-network (PICN) material. MATERIALS AND METHODS. T and HT PICN blocks were prepared at 0.5, 1.0, 1.5, and 2.0 mm thicknesses (n=80). Resin cement samples were prepared with a diameter of 6 mm and a thickness of 100 ㎛. Light-cured resin cement was polymerized for 30 seconds, and dual-cure resin cement was polymerized for 20 seconds (n=180). Fourier transform infrared spectroscopy (FTIR) was used for degree of conversion measurements. The obtained data were analyzed with ANOVA and Tukey HSD, and independent t-test. RESULTS. As a result of FTIR analysis, the degree of conversion of the light-cured resin cement prepared under 1.5- and 2.0-mm-thick T and HT ceramics was found to be lower than that of the control group. Regarding the degree of conversion of the dual-cured resin cement group, there was no significant difference from the control group. CONCLUSION. Within the limitation of present study, it can be concluded that using of dual cure resin cement can be suggested for cementation of PICN material, especially for thicknesses of 1.5 mm and above.

The Effect of Peer Scaffolding on College Students' Writing Skills in EFL

  • Wooyoung Kim
    • International Journal of Advanced Culture Technology
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    • v.11 no.3
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    • pp.156-162
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    • 2023
  • The purpose of this study was to examine the effects of peer scaffolding on the writing fluency of English language learners. This study was intended to confirm that peer scaffolding in English as a foreign language (EFL) writing classes can improve students' English proficiency. An analysis of 20 EFL learners studying at a university in Gyeonggi Province was conducted based on the English Proficiency Test. In this study, 20 intermediate learners with similar proficiency levels were included in the sample. Randomly, 10 students were designated as members of the control group, and 10 students were designated as members of the experimental group. In the experimental group, students practiced essay writing, while a skilled student provided scaffolding for a less skilled student. A variety of tools were used to gather data, including tests, questionnaires, and interviews Statistical analyses of quantitative data were conducted using t-tests for independent samples, whereas analyses of qualitative data were conducted based on themes. Pre-test results indicated a significant value of sig. =0.87, which was higher than α = 0.05. According to the results of this study, the writing performance of both experimental and control groups of students was equal and homogeneous prior to treatment. However, there were significant differences between the writing of students in the two groups after the completion of the program. Due to the post-test analysis of the writing test, the test resulted in a sig. =0 .043, a value lower than α = 0.05. As a result, the experimental group participants showed a marked improvement in their writing abilities after treatment.