• Title/Summary/Keyword: Independent Samples T-Test

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A study on the relationship between college students' self-differentiation and marriage outlook (대학생의 자아분화와 결혼관의 관계연구)

  • Ri-a Lee;Won-Sun Lim
    • Industry Promotion Research
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    • v.9 no.1
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    • pp.179-187
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    • 2024
  • This study aims to develop policies and programs to improve self-differentiation that will have an impact on establishing a positive view of marriage among college students by examining and confirming the impact of college students' self-differentiation on their views on marriage among college students in early adulthood. This is an attempted research study. For this purpose, a self-report online survey was conducted and analyzed among 204 college students attending a university in northern Gyeonggi Province. The analysis method used SPSS 25.0 program to calculate internal consistency, frequency analysis to identify the general characteristics of the research subject, descriptive statistical analysis to determine the level of the research variable, and differences in research variables according to the characteristics of the research subject. To find out, an independent samples t-test, analysis of variance, and post hoc test were conducted, and analysis using SPSS Process Macro was conducted to verify the mediation effect. The results of the analysis showed a positive (+) correlation between self-differentiation and views on marriage, which suggests that self-differentiation has a significant impact on establishing a positive view on marriage, and for this purpose, it is necessary to establish a positive view on marriage among college students. To this end, we aimed to provide basic data to support education for healthy families through national policy.

The Effect of Self-Awareness and Other-Awareness on College Life adjustment in Dental Hygiene Students (일부 치위생과 학생의 자기인식 및 타인인식이 대학생활 적응에 미치는 영향)

  • Ji-Young Lee
    • Journal of Korean Dental Hygiene Science
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    • v.6 no.2
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    • pp.161-172
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    • 2023
  • Background: The purpose of this study is to assess the degree of self-awareness, recognition of others, and adaptation to college life of dental hygiene students, and to identify the factors affecting college life adjustment. Methods: The effect size was calculated using the G*power 3.1.9.4 program, based on the data of 191 people who agreed to participate in the questionnaire. Independent samples t-test, one way ANOVA, Post HOC Scheffe, correlation analysis, and multiple regression analysis were conducted to explore the difference and correlation between self-awareness, perception of others, and college life adjustment according to general characteristics. Results: A significant positive correlation was found in self-awareness (r=.301). The highest positive correlations were with social adjustment in both private (r=.340) and public self-awareness (r=.331) (p<0.01). Recognition of others (r=-.051) showed a negative correlation with college life adjustment, though it was not statistically significant. As factors for adapting to college life, private self-awareness (β=.232) and public self-awareness (β=.254) had a positive (+) effect, and internal self-awareness (β=-.205) was found to have a negative (-) effect (p<0.01) Conclusion: The self-awareness and recognition of others among dental hygiene students influence their smooth adjustment to college life. Improvement measures are recommended to enhance adaptability to college life and develop core competencies related to their major

The Relationship of Retention Intention to Job Stress of Nurses in Korean Red Cross Blood Center : The Mediating Effect of Positive Psychological Capital (혈액원 간호사의 재직의도와 직무스트레스의 관계연구 : 긍정심리자본의 매개효과)

  • Jisoon Kang;Min Ju Park;Hyunju Lee
    • Journal of the Korean Applied Science and Technology
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    • v.41 no.3
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    • pp.721-732
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    • 2024
  • This study is a descriptive research to determine the mediating effect of Positive Psychological Capital on the relationship between Job Stress and Retention Intention among nurses working at blood centers in the metropolitan area. Data were collected from 167 nurses using a structured questionnaire between May 2021 and April 2022, and analyzed by SPSS ver.25. General characteristics were analyzed through frequency, percentage, mean, and standard deviation. The relationship between Job Stress and Retention Intention was analyzed using independent samples t-test, ANOVA, and Pearson's correlation. Hypotheses were tested using hierarchical multiple regression analysis and PROCESS macro model 4. The results substantiated the hypotheses: Hypothesis 1 proposed that higher Retention Intention and Positive Psychological Capital were associated with lower Job Stress. Hypothesis 2 suggested that Positive Psychological Capital significantly partially mediates the relationship between Retention Intention and Job Stress. To promote Retention Intention among blood center nurses, it is crucial to implement human resource management systems aimed at alleviating Job Stress and enhancing Positive Psychological Capital. Specifically, enhancing Positive Psychological Capital within blood centers is particularly significant. This study contributes empirical evidence necessary for efficient personnel management and competency enhancement programs to reduce Job Stress, thereby enhancing the quality of nursing care among blood center nurses. Furthermore, it is recommended to develop intervention programs for Positive Psychological Capital to enhance Retention Intention and reduce Job Stress among blood center nurses.

An Analysis of Clinical Prognosis Factors of Bell's Palsy (Bell's Palsy의 경과에 대한 예후인자 분석)

  • Min, Young-Kwang;An, Chang-Beohm;Jang, Kyung-Jun;Yoon, Hyun-Min;Kim, Cheol-Hong;Song, Choon-Ho;Kim, Soo-Min;Kim, Jeong-Eun;Park, Jae-Heung
    • Journal of Acupuncture Research
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    • v.25 no.3
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    • pp.163-177
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    • 2008
  • Objectives : This study was designed to evaluate clinical prognosis factors of Bell's palsy patients. Methods : The 100 subjects were chosen from 262 patients over 20years old who was diagnosised Bell's palsy through Acupuncture & Moxibustion and ENT medical specialist after visiting the hospital within 8days of onset of peripheral facial palsy and after Oriental-Western Medicine Treatment, recovered completely or had over three months cares because of incomplete recovery Oriental-Western Medicine Treatment included Acupuncture Treatment, Herb med treatment, medicines treatment, Physical therapy and Electrodiagnostic Test was operated after 7 to 10days after outbreaks of the disease. Clinical prognosis factors were analyzed using House-Brackmann grading system(HBGS) as a measurement of the degree of Facial Palsy. Collected data were analyzed as Chi-Square test, ANOVA test, Independent-Samples t-test regression analysis using SPSS 12.0 WIN Program. Results : 1. There was a significant difference in the results of treatment according to site of palsy, degree of initial palsy, time of initial recovery and existence of recovery after 3weeks from onset as clinical prognosis factors of Bell's Palsy, However, a statistically significant difference was not shown in the results of treatment according to gender, age, existence of Post Auricular Pain, Hypertension, Diabetes and existence of relapse. 2. As a result of overall treatment, 85% of patients were recovered almost entirely and 15% were not recovered completely. 3. There was a significant difference in the onset of Post Auricular Pain and duration of Post Auricular Pain according to the degree of Post Auricular Pain. 4. There was a significant difference in the degree of initial palsy and degree of palsy after 3weeks from onset according to the existence of Post Auricular Pain. However, a statistically significant difference was not shown in the period of time until initial treatment, The time of initial recovery, (H-B), The period from onset to recovey, ENoG value. Conclusions : Based on the above results, prognosis of Bell's palsy was affected by degree of initial palsy, time of initial recovery and existence of recovery after 3weeks from onset.

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Further Analyses on the Contemporary Changes of Profitability for the Firms Belonging to the Chaebol in the Republic of Korea (한국 재벌기업들의 수익성 결정요인에 대한 추세적 심층분석)

  • Kim, Hanjoon
    • The Journal of the Korea Contents Association
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    • v.14 no.6
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    • pp.367-384
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    • 2014
  • This study addresses an empirical issue which has been received little attention in the contemporary finance literature: To identify any financial determinants of the profitability indices for the firms belonging to the Korean chaebol. Three hypotheses of concern were postulated and tested for the sample firms covering the periods of the pre-and post-financial global crises. Regarding the results on the 1st hypothesis test of characterizing any financial profiles for the firms (belonging to the chaebols) by estimating a legitimate panel data model: the present study found the statistically significant relationships of the explanatory variables (BVLEVl, MVLEVl, MV/BV, RISK, FCFF and FOS) with the book-value based profitability ratio: while the market-valued profitability index was explained only by BVLEV2. Regarding the 2nd hypothesis test for the profitability of the sample firms at the industry level: the chaebol firms in the chemical and the food industries overall positioned themselves into the top ranks in order, which was tested by the ANCOVA and the Tukey multiple comparison procedure. Finally: on the 3rd hypothesis test for the 'adjusted' Dupont system, only two such as the 'operating margin' and the 'asset turnover' showed their significant effects between the chaebol firms and their counterparts in both the (parametric) independent samples t-test and the (nonparametric) Wilcoxon-Mann-Whitney statistics.

The Effects of 'Climbing learning Method' in the Learning of Mathematics in Elementary School (학습구조차트를 활용하는 등산학습법의 초등수학 적용과 효과에 관한 연구)

  • Baik, Min-Ho;Kim, Pan-Soo
    • Journal of Elementary Mathematics Education in Korea
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    • v.11 no.2
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    • pp.177-197
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    • 2007
  • This study discussed the climbing learning method which studied and practiced by Professor Saito Noboru. This is the learning method which is devised to know not only the relationship of the learning factors but the systemic or structural connection of whole studying contents- affects children's math learning ability through practical class to both the lower and the higher grades. To achieve the purpose of this study, these following issues were set; A. Develop the teaching and learning course of mathematics by applying the climbing learning method. B. Execute the mathematics lesson according to the climbing learning method and analyze the learning achievement. C. Analyze the difference between application of the climbing learning method and that of the learning method by student's level in mathematics. D. Analyze what the climbing learning method gives a shift of the recognition of learning mathematics. In order to accomplish these study issues, we analyzed the text book of math not only for children but also for teachers and developed the teaching and learning course applied the climbing learning method with advice of experts. It was chosen two different homogeneous groups each, third year for lower grade group and fifth year for higher grade group. It was done the experimental group lesson applying the climbing learning method and general lesson for the control group. After then, t-test against independent samples was done depending on the result of the student's assessment(T1, T2). These two groups' students were divided into smaller groups based on result of achievement level regardless of gender. These subgroups were confirmed the difference of learning ability between upper and lower level group. As regarding the result making out grades of faith and attitude for math, t-test was used on independent sample. At the same time, experimental groups were tested using learning attitude with the learning structure chart. Through this study the following results are obtained and the conclusion was drawn. Firstly, although applying the climbing learning method to the lesson does not have significant effect to the lower grade of elementary school student's achievement it has significant influence on the higher grade student's achievement. Second, as a result of analyzing the difference between the climbing learning method and the learning method by student's level in mathematics, it is of no beneficial effect to the lower grade both upper level and lower level. However, it has appreciable effect to the higher grade classes both upper level and low level. Especially, upper level students have higher effect than low level students. Third, climbing learning method does not affect to the faith and attitude of the lower grade students positively, but it has affirmative effect to the higher grade students'. As a result of the survey of the experimental groups which were applied to the climbing loaming method, the lesson by using the learning structure chart proved to be helpful to the both the lower and higher grade. The best advantage of using the learning structure chart, children say, is easily understood whole contents of studying and is useful for review. Furthermore, using the learning structure chart is more efficient compared with previous learning method and is given the successful result to self-directed learning. In conclusion, keeping up with the current of the thought of education, we suggest a scheme as a new teaching method from the constructive learning method which emphasize the self-directed learning.

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Analysis on Key-factors in Worsening of Eyesight for Schoolchildren as a Consequence of Computer Usage Time (컴퓨터 사용 시간에 따른 초등학생의 시력저하 요인 분석)

  • Joo, Heon-Sik
    • The Journal of the Korea Contents Association
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    • v.11 no.3
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    • pp.477-486
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    • 2011
  • In this paper, I had tried to analyze the relationship between the time assigned for computer usage and weakening eyesight. First of all, students classified by gender, school year, eyesight, and wearing glasses along demographic characters took part in a poll, and The questionnaire included questions about computer time, factors of weakening eyesight, and purpose of computer use. The finding in this analysis composed of a cross-tabulations between annual eyesight change and the factors to change their eyesight is that 63.6 % of 165 students participated in this survey weakened their eyesight within a year. To show a correlation between computer usage duration and worsening eyesight in this paper, regression analysis indicated weakened vision by computer usage duration per day and week instead of a year. In addition, according to the analysis between computer usage duration and weakened vision for the people who wear glasses or not trough Independent-Samples T test, weakened vision was shown in computer usage duration per day and week, but not shown in the duration by the year. Therefore, weakening vision was also worse for the people who didn't wear glasses than the others. This study indicated 24..5% of teenagers had poor eyesight by using their computer. According to the frequency analysis on purposes of computer usage, the biggest purpose accounting for 36.4% of the total was the computer usage as a game consol, and the computer as a learning tool was the next biggest purpose at 32.1%. This paper showed the correlation between computer usage time and a factor of weakened eyesight through an analysis of the factor. Therefore, schoolchildren's parents should be more interested in their computer usage.

Trends of Korean Medicine Conservative Treatment Using Low Back Pain Patients Registry Data: Analysis of Medical Records of 7 Korean Medical Hospital (요통 환자 레지스트리 데이터를 통한 한의 보존적 치료 경향: 7개 한방병원 의무기록 분석)

  • Lee, Kang-Joon;Oh, Min-Seok;Lee, Eun-Jung;Shin, Byung-Cheul;Hwang, Eui-Hyoung;Kim, Soon-Joong;Cha, Yun-Yeop;Ko, Youn-Seok;Song, Yun-kyung
    • Journal of Korean Medicine Rehabilitation
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    • v.29 no.3
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    • pp.87-101
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    • 2019
  • Objectives The purpose of this study is to investigate characteristics of low back pain patients and trends of Korean medicine conservative treatment effects of low back pain patients by registry data. Methods A total of 78 patients were analyzed, statistical analysis was performed using a generalized linear model. The comparison between groups was performed using independent two samples t-test or Wilcoxon rank sum test according to the distribution of normality. Before and after the treatment effects, ANOVA and Kruskal-Wallis method were used for the comparison, Sheffe method was used for the post test. Results The average age of hospitalized patients was 31.8 years old and out-patient department (OPD) patients was 44.9 years old. Lots of OPD patients and hospitalized patients were classified to 'Lumbago due to Coexist Qu Stagnation and Bloos Stasis'. Both OPD patients and hospitalized patients classified to 'Lumbago due to Coexist Qu Stagnation and Bloos Stasis' showed statistically significant decrease in RMDQ (Roland-Morris disability questionnaire) and NRS (numeric rating scale) on 1 month and 3 month after clinical research start date. Comparing the treatment effects of Chuna manual therapy, both Chuna group and non-Chuna group showed statistically significant decrease in RMDQ and NRS on discharge date, 1 month and 3 month after clinical research start date. Conclusions We expect that a larger scale registry study will be carried out to provide a higher level of basis for the Korean medical treatment of low back pain.

Anesthetic efficacy of supplemental buccal infiltration versus intraligamentary injection in mandibular first and second molars with irreversible pulpitis: a prospective randomized clinical trial

  • Zargar, Nazanin;Shojaeian, Shiva;Vatankhah, Mohammadreza;Heidaryan, Shirin;Ashraf, Hengameh;Baghban, Alireza Akbarzadeh;Dianat, Omid
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.22 no.5
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    • pp.339-348
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    • 2022
  • Background: To compare the anesthetic efficacy of supplemental buccal infiltration (BI) (1.7 ml) versus intraligamentary (IL) injection containing 0.4 ml of 4% articaine with 1:100.000 epinephrine after an inferior alveolar nerve block (IANB) with 1.7 ml 2% lidocaine in the first and second mandibular molars diagnosed with irreversible pulpitis (IP). Methods: One hundred subjects diagnosed with IP of either the mandibular first (n = 50) or second molars (n = 50) and failed profound anesthesia following an IANB were selected. They randomly received either the IL or BI techniques of anesthesia. Pain scores on a 170 mm Heft-Parker visual analog scale were recorded initially, before, and during supplemental injections. Furthermore, pulse rate was measured before and after each supplemental injection. During the access cavity preparation and initial filing, no or mild pain was assumed to indicate anesthetic success. The chi-square test, Mann-Whitney U test, and independent samples t-test were used for the analyses. Results: The overall success rates were 80% in the IL group and 74% in the BI group, with no significant difference (P = 0.63). In the first molars, there was no significant difference between the two techniques (P = 0.088). In the second molars, IL injection resulted in a significantly higher success rate (P = 0.017) than BI. IL injection was statistically more successful (P = 0.034) in the second molars (92%) than in the first molars (68%). However, BI was significantly more successful (P = 0.047) in the first molars (88%) than in the second molars (64%). The mean pulse rate increase was significantly higher in the IL group than in the BI group (P < 0.001). Conclusions: Both the IL and BI techniques were advantageous when used as supplemental injections. However, more favorable outcomes were observed when the second molars received IL injection and the first molars received BI.

The Effect of Brain-Based Evolutionary STEAM Education on Scientific Interest and Scientific Creativity in Elementary School Students (뇌기반 진화적 STEAM 교육이 초등학생의 과학 흥미와 과학 창의성에 미치는 영향)

  • Jeong, Kyung-Wook;Lim, Chae-Seong
    • Journal of Korean Elementary Science Education
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    • v.40 no.2
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    • pp.239-252
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    • 2021
  • The purpose of this study is to develop an evolutionary STEAM education program based on the brain and to analyze its effects on scientific interest and scientific creativity of elementary school students. Four different topics based on four scientific fields (Physics, Chemistry, Biology and Earth Science) were derived from the science textbook under the 2015 revised curriculum to build a brain-based evolutionary STEAM education program. The research subjects were 90 fourth graders of S-elementary school located in Gyeonggi Province, Korea and they were divided into an experimental group of 45 students and a comparative group of 45 students. The main findings of this study are as follows. First, according to the independent samples t-test of scientific interest, no statistically significant difference were found between the two groups, but the brain-based evolutionary STEAM education had meaningful effect on improving 'interest in scientific learning' and 'anxiety about scientific learning'. Second, according to the paired samples t-test of scientific interest, the experimental group had significantly improved 'interest in science' but on the other hand, there was no effect on the comparative group. Third, scientific creativity and originality of the experimental group were significantly higher after the class than that of the comparative group. Fourth, although there were some significant differences between the two groups in scientific creativity after the class, both groups had improved scientific creativity between the results of pre and post test. Based on these results, we discuss implications for science education and STEAM education research.