• Title/Summary/Keyword: two sample t-test

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Mothers' Perception on Antibiotic Use for Their Children Under Six Years Old (6세 이하 아동 어머니의 항생제 사용인식)

  • Kim, Tae Im;Kim, Kyung Wha;Kim, Mi-Jong
    • Journal of Korean Academic Society of Home Health Care Nursing
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    • v.26 no.1
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    • pp.51-63
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    • 2019
  • Purpose: The objective of this study was to investigate mothers' perception of antibiotic use for their children. Methods: A cross-sectional survey was conducted of a convenient sample of 210 mothers who visited the two pediatric hospitals in D city. Descriptive statistics, t-test, analysis of variance, Kruskal-Wallis test, Mann-Whitney U test, and Pearson correlation coefficients with SPSS WIN 24.0 were used to analyze the data. Results: The perception of mothers on antibiotic use for their children was relatively low (3.28/5) and showed a statistically significant difference based on the mothers' educational background (${\chi}^2=15.30$, p<.001). About 57-77% of participants discontinued or reduced the dosage of the antibiotics if their children's symptoms were relieved, and about 60% of them perceived that antibiotics treat viral infections. Mothers' adherence to specific doses of antibiotics in their children was positively correlated with their knowledge and beliefs (r=.17, p=.014) and their attitude regarding the use of antibiotics (r=.17, p=.014). Only 1.4% of the participants had educational experience regarding the correct use of antibiotics. Conclusion: Based on the results, it can be concluded that an educational program for mothers should be developed and to verify its effects in order to induce proper use of antibiotics among mothers.

The Effects of a Sibling-involved Language Intervention in Children with Language Disorders (형제 참여 언어중재가 언어장애 아동의 언어능력에 미치는 효과)

  • Hwang, Bo-Myung
    • Speech Sciences
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    • v.10 no.3
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    • pp.65-77
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    • 2003
  • This study was aimed at clarifying the effects of sibling-involved .language intervention in children with language disorders. Ten subjects were selected and assigned into two groups (language intervention group with sibling-involvement, and language intervention without sibling-involvement). Group 1 consisted of 5 children with language disorders. Group 2 consisted of 5 children with language disorders without sibling-involvement. To investigate the language and communication ability, Picture Vocabulary Test and the subjects's spontaneous speech sample were analyzed. To compare pre-treatment with post-treatment between two the groups, repeated-measures ANOVA and t-test were used. The results were as follows; First, the language intervention with sibling-involvement was not effective compared to without sibling-involvement in improving the picture vocabulary ability of children with language disorders. There was a significant difference between pre-treatment and post-treatment in the picture vocabulary ability of the two .groups. However, there was no significant difference in the post-treatment between the two groups. Second, the language intervention with sibling-involvement was more effective compared to without sibling-involvement in improving the semantic aspects of language of children with language disorders. There was a significant difference between pre-treatment and post-treatment in the number of semantic relations between the two groups in that group 1 showed a higher improvement than group 2. Third, the language intervention with sibling involvement was more effective in improving pragmatic aspects of language of children with language disorders. There was a significant difference between pre-treatment and post-treatment in the number of communicative intentions of the two groups. And there was a significant difference in the post-treatment between the groups in that group 1 showed a higher improvement than group 2.

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The Effects of 'Reading Guide' Course through Problem-Based Learning on Problem Solving Ability and Communication Ability (프로젝트 기반 학습법을 통한 '독서지도' 과목이 문제해결능력과 의사소통능력에 미치는 영향)

  • Lee, Myeong-Hee
    • Journal of the Korean Society for Library and Information Science
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    • v.54 no.1
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    • pp.197-221
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    • 2020
  • This study investigates the influence of project-based learning method on the problem-solving ability and communication ability of students taking the 'Reading Guide' course in Library and Information Science(LIS). During this study, two tests measuring students' problem-solving ability and communication ability were conducted, containing 30 items divided into 5 steps of problem-solving processes and 45 items divided into 15 categories of communication ability, respectively. By utilizing the correspondence sample T-test during this study, significant differences were found in the 5 steps problem-solving processes. However, no difference was found between the pre-test and the post-test results in all 15 categories of communication ability. Subsequently, an in-depth interview was conducted, inquiring into the students' perspectives on the difficulty of attending classes, the content of lectures, the appropriateness of assignments, the validity of the evaluation method, the relationship with their team members, and the benefits acquired from completing the projects. Finally, an intensive analysis was conducted in the categories of problem-solving ability and communication ability.

A comparative study on health promoting lifestyles between Nursing and Non - Nursing students at an evening class of junior college (야간전문대 여학생들의 건강증진 생활양식 -간호계 학생과 비간호계 학생비교-)

  • Jeong, Hyun-Sook
    • Research in Community and Public Health Nursing
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    • v.8 no.2
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    • pp.368-380
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    • 1997
  • This descriptive comparative study was conducted to compare the relationships among self-esteem, self-efficacy, perceived health status and the performance of health promoting lifestyles for nursing and non-nursing students. The sample consisted of 246 nursing students and 166 non-nursing students at an evening class of junior college in T city. The data was collected by a self reporting questionnaire from March 2 to March 17, 1997 and analyzed by SPSS Win. 7.0 program for frequency, mean, percentage, t -test, ANOVA, and a Pearson correlation coefficient. The results of this study are summarized as follows: 1. The results of the comparison between the two groups was not significantly different for self esteem and perceived health status, but significantly different for self-efficacy. Nursing students had higher scores on self -efficacy than non-nursing students(t=4.621. p<.05). 2. There was a statistically significant difference between the two groups concerning a health promoting lifestyle. Nursing students ($157.73{\pm}20.26$) had higher scores on total health promotion as well as its 8 subscales than non -nursing students ($048.15{\pm}21.51$,), (t=21.074, p<.001). On subscales, nursing students had the highest score in sanitary life(3.22) and the lowest score in professional health maintenance(1.54). Non -nursing students had the highest score in harmonious relationships(3.10) and the lowest score in professional health maintenance (1.48). 3. Performance in a health promoting lifestyle was significantly correlated with such demographic variables as age and grade for nursing students, and types of dwelling for non -nursing students. 4. Perceptions of good health have been positively correlated with health promoting lifestyles. Those persons who rated their health as good showed the highest score, followed by excellent ,average, poor in that order. 5. Performance in health promoting lifestyles was significantly correlated with self-esteem, self-efficacy and, perceived health status. The most important factor that affect performance in health promoting lifestyles was self -efficacy.

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A Study of the Level of Comfort in Korean Adults : Comparison between Healthy people and in-Patients (정상인과 입원환자의 안위정도에 관한 비교)

  • Kim Keum-Soon;Byun Young-Soon;Gu Mi-Ok;Jang Hee-Jung
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.3 no.2
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    • pp.201-211
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    • 1996
  • The purpose of this study was to compare the comfort level between healthy people and adult in-patients in Korea. The sample consisted of 248 adults(healthy adults : 124, patients admitted in university hospitals in Seoul and Jinju : 124). The research tool used for the study was General Comfort Questionnaire(GCQ) which was developed by Kolcaba(1992) and was translated by Korean. The research tool consisted of 28 items(6 items on physical dimension, 9 items on psychospritual dimension, 7 items on environmental dimension, 6 items on social dimension). Data were analyzing using the SPSS, yielding t-test, ANOVA. The results are as follows : 1) Mean scores for comfort level in healthy adults were 2.92 on a 4 point scale. 2) Mean scores for comfort level in-patient adult were 2.72 on a 4 point scale. 3) There was a significant difference between the two groups on the comfort level. The healthy adults had higher comfort level than in-patients(t=4.44, p=0.000). 4) There was a significant difference between the two groups on the comfort level of physical and environmental dimension. The healthy adults had higher comfort level than in-patients(t=2.99, p=0.003) and environmental dimension(t=8.81, p=0.000).

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Effects of Simulation-based Education focusing on Cardiopulmonary Resuscitation on Attitude, Self-efficacy and Satisfaction of the Elderly in Rural Community (시뮬레이션 기반 심폐소생술교육이 노인의 태도, 자기 효능감, 만족도에 미치는 효과)

  • Yoo, Je-Bog;Jeong, Jeong-Hee;Bang, Sul-Yeong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.3
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    • pp.460-468
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    • 2017
  • The purpose of this study was to compare the effects of class-based and simulation-based CPR education for the rural elderly on their attitudes toward CPR, self-efficacy, and satisfaction. Using a quasi-experimental design with a nonequivalent control group, this study used a pretest-posttest method with a sample of 43 elderly people aged 65 or older in rural areas. The twenty-two elderly people in the control group received class-based CPR education, while the experimental group underwent both class-based and simulation-based education. Both groups were given surveys to complete before and after the education. The statistical analysis was based on the $X^2$-test, Fisher's exact test, paired t-test, and ANCOVA. The study found no significant differences between the two groups in terms of their attitudes (F=0.89, p=.353). However, statistical differences were found in the self-efficacy (F=5.54, p=.025) and satisfaction (F=4.66, p=.039) between the two groups. This study provides the baseline data indicating that the education methods implemented in this study were effective for the elderly living in rural areas. Thus, it is necessary to make efforts to ensure that the elderly are able to manage emergency situations by boosting their CPR self-efficacy and educational satisfaction through simulation-based education.

Long-term stability of dentoalveolar, skeletal, and soft tissue changes after non-extraction treatment with a self-ligating system

  • Basciftci, Faruk Ayhan;Akin, Mehmet;Ileri, Zehra;Bayram, Sinem
    • The korean journal of orthodontics
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    • v.44 no.3
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    • pp.119-127
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    • 2014
  • Objective: To evaluate the long-term effects of self-ligating brackets (SLBs) on transverse dimensions of arches and skeletal and soft tissues and to quantitatively evaluate the treatment outcome after non-extraction treatment with SLBs. Methods: The sample consisted of 24 (18 female and six male) subjects, with a mean age of $14.23{\pm}2.19$ years, who received treatment with the Damon$^{(R)}$3 appliances. Complete records including cephalometric radiographs and plaster models were obtained before treatment (T1), immediately after treatment (T2), six months after treatment (T3), and two years (T4) after treatment. Digital study models were generated. Twenty lateral cephalometric, six frontal cephalometric, and eight dental cast measurements were examined. The Peer Assessment Rating index was used to measure the treatment outcome. The Wilcoxon test was applied for statistical analysis of the changes. Results: There were significant increases in all transverse dental cast measurements with active treatment. There was some significant relapse in the long term, particularly in maxillary width (p < 0.05). Statistically significant increases were found in nasal (p < 0.001), maxillary base, upper molar, lower intercanine, and antigonial (p < 0.05) widths in T1-T2. Lower incisors were proclined and protruded in T1-T2. Conclusions: SLBs correct crowding by mechanisms involving incisor proclination and protrusion and expansion of the dental arches, without induction of clinically significant changes in hard and soft tissues of the face.

Evaluations and Comparisons of Body Surface Doses during Breast Cancer Treatment by Tomotherapy and LINAC Radiotherapy Devices

  • Lee, Hyun-Jik;Bae, Sun-Hyun;Cho, Kwang Hwan;Jeong, Jae-Hong;Kwon, Su-Il;Lee, Kil-Dong
    • Progress in Medical Physics
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    • v.28 no.4
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    • pp.218-225
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    • 2017
  • Effects on skin caused by the dose from linear accelerator (LINAC) opposing portal irradiation and TomoDirect 3-D modeling treatment according to the radiation devices and treatment methods were measured, and a comparative analysis was performed. Two groups of 10 patients each were created and measurements were carried out using an optically stimulated luminescence dosimeter. These patients were already receiving radiation treatment in the hospital. Using the SPSS statistical program, the minimum and maximum average standard deviations of the measured skin dose data were obtained. Two types of treatment method were selected as independent variables; the measured points and total average were the dependent variables. An independent sample T-test was used, and it was checked whether there was a significance probability between the two groups. The average of the measured results for the LINAC opposing portal radiation was 117.7 cGy and PDD 65.39% for the inner breast, 144.7 cGy and PDD 80.39% for the outer breast, 143.2 cGy and PDD 79.56% for the upper breast, 151.4 cGy and PDD 84.11% for the lower breast, 149.6 cGy and PDD 83.11% for the axilla, and 141.32 cGy and PDD 78.51% for the total average. In contrast, for TomoDirect 3-D conformal radiotherapy, the corresponding measurement values were 137.6 cGy and PDD 76.44%, 152.3 cGy and PDD 84.61%, 148.6 cGy and PDD 82.56%, 159.7 cGy and PDD 88.72%, and 148.6 cGy PDD 82.56%, respectively, and the total average was 149.36 cGy and PDD 82.98%. To determine if the difference between the total averages was statistically significant, the independent sample T-test of the SPSS statistical program was used, which indicated that the P-value was P=0.024, which was 0.05 lower than the significance level. Thus, it can be understood that the null hypothesis can be dismissed, and that there was a difference in the averages. In conclusion, even though the treatment dose was similar, there could be a difference in the dose entering the body surface from the radiation treatment plan; however, depending on the properties of the treatment devices, there is a difference in the dose affecting the body surface. Thus, the absorbed dose entering the body surface can be high. During breast cancer radiotherapy, radiation dermatitis occurs in almost all patients. Most patients have a difficult time while undergoing treatment, and therefore, when choosing a radiotherapy treatment method, minimizing radiation dermatitis is an important consideration.

Effect of denture cleansers on surface hardness of resilient denture liners at various time intervals- an in vitro study

  • Pahuja, Rasleen Kaur;Garg, Sandeep;Bansal, Sanjay;Dang, Rajat Harvinder
    • The Journal of Advanced Prosthodontics
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    • v.5 no.3
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    • pp.270-277
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    • 2013
  • PURPOSE. This study was aimed to determine the effect of two chemically distinct denture cleansers and water on the surface hardness of acrylic and silicone based soft denture liners at various time intervals. MATERIALS AND METHODS. Two commonly used commercial resilient liner material were selected based on their chemical composition (silicone- and acrylic-based soft liners) for this investigation. 120 cylindrical specimens were made of $15mm{\times}10mm$ dimensions (according to ASTM: D-2240-64T) in a custom made metal mold. All specimens were stored in artificial saliva throughout the study. Forty specimens were cleansed daily in 0.5% sodium hypochlorite solution; forty were cleansed in sodium perborate and remaining forty specimens were daily rinsed in water. Testing was done at 1 week, 1 month, 3 months and 6 months for surface hardness using a Shore A Durometer. A mean of 3 reading for each sample was subjected to one-way ANOVA, Post Hoc test and pair-t test for statistical analysis. P values of less than 0.05 were taken as statistically significant. RESULTS. Surface hardness of all the samples was significantly higher after a period of 6 months irrespective of the cleansing treatment. Minor changes were observed between control, sodium hypochlorite and sodium perborate groups with time. Greater change was observed in surface hardness of acrylic-based soft denture liners as compared to silicone-based soft liners for all groups, as time progressed. CONCLUSION. Silicone-based soft denture liners performed significantly better in all cleansing treatments than acrylic-based soft denture liners.

Effects of Application of Social Marketing Theory and the Health Belief Model in Promoting Cervical Cancer Screening among Targeted Women in Sisaket Province, Thailand

  • Wichachai, Suparp;Songserm, Nopparat;Akakul, Theerawut;Kuasiri, Chanapong
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.7
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    • pp.3505-3510
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    • 2016
  • Cervical cancer is a major public health problem in Thailand, being ranked second only to breast cancer. Thai women have been reported to have a low rate of cervical cancer screening (27.7% of the 80% goal of WHO). We therefore aimed to apply the social marketing theory and health belief model in promoting cervical cancer screening in Kanthararom District, Sisaket Province. A total of 92 from 974 targeted women aged 30-60 years were randomly divided into two groups. The experimental group underwent application of social marketing theory and a health belief model program promoting cervical cancer screening while the control group received normal services. Two research tools were used: (1) application of social marketing theory and health belief model program and (2) questionnaire used to evaluate perceptions of cervical cancer. Descriptive and inferential statistics including paired sample t-test and independent t-test were used to analyze the data. After the program had been used, the mean score of perception of cervical cancer of experimental group was at a higher level (${\bar{x}}=4.09$; S.D.=0.30), than in the control group (${\bar{x}}=3.82$; S.D.=0.20) with statistical significance (p<0.001). This research demonstrated an appropriate communication process in behavioral modification to prevent cervical cancer. It can be recommended that this program featuring social marketing and the health belief model be used to promote cervical cancer screening in targeted women and it can be promoted as a guideline for other health services, especially in health promotion and disease prevention.