• 제목/요약/키워드: Stratified Sampling

검색결과 608건 처리시간 0.027초

고등학생들의 과학에 대한 정의적 언식과 과학 탐구능력 및 과학 학습성취도의 구조분석 (Structural Analysis among Science Achievement, Science Process Skills and Affective Perception toward Science of High School Students.)

  • 이재천;김범기
    • 한국과학교육학회지
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    • 제16권3호
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    • pp.249-259
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    • 1996
  • The purpose of this study was to analyze relationships among science achievement, science process skills and affective perception of high school students. The affective perception was included attitude toward science and science anxiety in the study. The instruments were developed HARS and SAMS for this study. The subject was sampled 1,115 students by stratified cluster sampling method. The major findings of this study were as follows: The tendency to affective perception was investigated according to students variables. Atittude toward science was showed a negative perception on female than male, in rural area than city. Science anxiety was percepted highly on female than male, in rural area than city. Attitude toward science showed positive relations to science process skills, science achievement, but which showed negative relation to science anxiety. Science anxiety showed negative relations among science process skills, science achievement and attitude toward science. Structural relationships among affective perception, science process skills and science achievement were analyzed by effect size through the path analysis on the independent and dependent variables. By the results, it was indicated that there have significant direct effect not only affective perception influence on science achievement but also on science process skills in hypothesized model. Prediction of science achievement and science process skills were clarified to characteristics of the affective perception.Therefore, understanding about affective perception will be helpful to make the strategy of science teaching

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청소년의 자살 시도 예측 요인 - 수도권과 광역시 거주 청소년을 대상으로 - (Predictors of Suicide Attempts in the Korean Adolescent Population)

  • 김현실
    • Child Health Nursing Research
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    • 제11권1호
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    • pp.34-42
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    • 2005
  • Purposes: The purposes of this study were ① to identify the rate of suicide attempts, and ② to investigate relevant variables(family dynamic environment, personality factors) and risk factors for attempting suicide among Korean adolescents. Method: Data were collected through a questionnaire survey. Internal consistencies for this questionnaire ranged from 0.63 to 0.88. Nine hundred and twenty two adolescents were surveyed (delinquent : 367, student : 555), using a proportional stratified random sampling method. Statistical methods employed were chi-square, t-test, and logistic regression analysis. Results: ① The rate of suicide attempts was 10.8% for the total sample, and the delinquents(19.6%) had a higher rate of suicide attempts than the students(5.1%). ② Adolescents attempting suicide had a greater dysfunctional family dynamic environment and more maladaptive personality than those who did not attempt suicide. ③ Risk factors for suicide attempts among Korean adolescents were way of coping, psychosomatic symptoms, and parental child-rearing attitudes, in that order. Conclusions: Suicide and suicidal behaviors are multifaceted events. For suicide prevention, there is a need to make an independent assessment of the variables such as familial problems, personality and dynamic environment of the families of the adolescents.

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Service Quality Perception and Customer Satisfaction in Islamic Banks of Oman

  • ALAM, Naushad;AL-AMRI, Hanin Abdulrhman
    • The Journal of Asian Finance, Economics and Business
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    • 제7권9호
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    • pp.499-504
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    • 2020
  • Service quality of any institution is a pull factor for attracting and retaining the customer. The present study examines the customer satisfaction level toward the quality of service offered by the Islamic banks in Oman. It also aims to find out which dimension influences customer satisfaction more concerning the other dimension chosen for the study. To fulfil the need of the study, a structured questionnaire is distributed amongst 100 customers of Islamic banks. The random stratified sampling technique is used for the collection of the data. The collected data is analyzed using the correlation and the multiple linear regression techniques. The result of the study indicates that timely service provided by the banking personnel has a mean score of 4.57, bank staff readiness to serve the customer has a mean score of 4.36, and the security of the banking operation has a mean score of 4.37 occupies the highest rank in their respective dimension chosen for the study. The study reveals that all three dimensions of quality of service represented by Services Reliability, Services Responsiveness and Services Security have a positive and significant correlation with customer satisfaction. The regression results also indicate that all three dimensions influence customer satisfaction of the Islamic banks.

Predictors of Cancer Awareness among Older Adult Individuals in Jordan

  • Ahmad, Muayyad M.;Al-Gamal, Ekhlas
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권24호
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    • pp.10927-10932
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    • 2015
  • Background: Older age is associated with an increase in the incidence of cancer cases. Diagnosis and treatment of cancer in older adults can be stressful because of health decline related to age, comorbidities and inadequate treatment for pain and other symptoms of the disease. This survey is one of the unique studies in Jordan and in the Arab world that aimed at exploring the predictors of older adult individuals awareness towards cancer. Materials and Methods: A stratified random sampling technique was followed to reach a representative sample of 753 participants. The questionnaire of the study consisted of parts regarding demographic variables, awareness about screening tests, and signs and symptoms of cancer. In addition, specific questions related to factors linked to cancer were included. Cross-sectional design was adopted with face-to-face interviews at the interviewees' households. Results: The mean age of the participants was about 63 years; around 44% of them are above the age of 65 years. 'Being convinced that having no health problem makes the individual feel safe and not at risk of getting cancer' was the major reason for not doing a routine health check-up. Conclusions: The low levels of awareness about cancer, as well as the low use of the screening methods were crucial outcomes of this study. Thus, raising the awareness among health care providers and policy makers in the country about older adults' perception of cancer is a high priority.

직무만족 측정 도구개발 (Measurement of job Satisfaction of Nurses and Health Workers in Health Centers)

  • 박성애;윤순녕
    • 대한간호학회지
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    • 제22권3호
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    • pp.316-324
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    • 1992
  • The purpose of this study was to develop a ratio scale to measure job satisfaction of nurses and health workers in health centers. Of the 224 health centers in Korea, 105 were drawn as the sample using disproportion리 stratified random sampling. The data collection period was from May 1 to June 30, 1990 and 771 nurses and health workers working at 75 health centers participated. Subjects were instructed to rate, according to the level of satisfaction, from one to four points, 42 items revised from the tool made by Stamps et. al. (1978). The internal consistency reliability of the tool was measured by Cronbach $\alpha$ and the corrected item-total correlation coefficient. As a result of the item analysis, one item was excluded since the item had negative correlation with total items. As a result of factor analysis on the 41 items with varimax or above. Labeling and numbering of 6 factors were as follows ; factor 1 (8 items) ; Professional status of job. factor 2 (6 items) ; Interaction. factor 3 (8 items) ; Autonomy. factor 4 (8 items) ; Administration. factor 5 (7 items) ; Pay. factor 6 (4 items) ; Job(Task). Further studies are needed to identify the relationship between this tool and the effectiveness of the health center and more research is needed for generalization.

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남자 대학생의 대중매체노출도가 외모에 대한 사회문화적 태도와 외모지향성에 미치는 영향 (The Influence of Male College Students' Extent of Mass Media Exposure on Sociocultural Attitude toward Appearance and Appearance Orientation)

  • 홍금희
    • 한국의류학회지
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    • 제32권7호
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    • pp.1149-1159
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    • 2008
  • This study aims at examining how male college students' extent of mass media exposure affects their sociocultural attitude toward appearance and appearance orientation. It also investigates how these variables show difference depending on the individual's self-efficacy. For the study, data were collected from 397 male students by means of stratified random sampling. The results are as follows: 1. Male college students 'sociocultural attitude toward appearance was shown in two factors of appearance internalization and appearance awareness. Appearance orientation was shown in two factors of interest in appearance and interest in body weight. 2. Male college students were exposed to mass media in order of videos, movies, TV entertainment shows, music and movie magazines. The influence of video media was strong. 3. Male college students' extent of mass media exposure exerted indirect influence through sociocultural attitude toward appearance rather than exerting direct influence on appearance orientation. 4. Male college students' appearance orientation varied depending on the extent of self-efficacy, and higher self-efficacy showed higher appearance orientation and appearance attitude. Especially the group with higher self-efficacy showed higher appearance attitude when the extent of exposure to mass media increased.

고등학생 흡연과 스트레스 및 사회적 지지와의 관련성 (Relationships of smoking, Stress and Social Support of High School Students)

  • 이은현;송미숙;이순영;김지윤;전기홍
    • Journal of Preventive Medicine and Public Health
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    • 제36권2호
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    • pp.131-136
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    • 2003
  • Objectives : The purpose of the present study was to explore a possible interaction effect of stress and social support on the smoking status and identify smoking related factors of high school students, Methods : A cross-sectional design was used for this study. A total of 1,251 high school students from Gyeonggi-do were selected using stratified-proportional random cluster sampling methods, The participants completed a set of questionnaires to measure their smoking status, stress, social support and sociodemographic information, The obtained data were analyzed using descriptive statistics, $x^2$-tests and hierarchical logistic regressions. Results : The interaction effect of stress and social support on smoking status was not supported. However, stress, sex, types of school, parent's smoking and friends' smoking were significantly predicted the smoking status of the high school students. Conclusions : In relation to the prevention of adolescents' smoking, it is recommended to decrease the stress levels of students, to make adolescents' parents cease smoking, and to educate adolescents on how to refuse the temptation to smoke or pressure from their smoking friend.

새로운 측정 모델을 이용한 과학기술 국민이해 조사연구 - 문제 및 이슈와 연관짓기를 중심으로

  • 김학수;이정훈;홍혜현
    • 기술혁신연구
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    • 제10권1호
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    • pp.124-147
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    • 2002
  • The purpose of this study is to conceptualize PUST (Public understanding or science and technology) with a new theoretical perspective and to measure the Korean PUST through a national survey. Then, it suggests policy implications of improving the Korean public understanding of science and technology. Our new theoretical perspective is focused on an information receiver's one rather than an information provider's one. Thus, we concepualized PUST as a process of engagement: how a citizen becomes to be engaged to science or technology. It does not stress how hard s/he is pushed to learn science or technology. A national survey was done by a face-to-face interview method. About 1,200 adults were sampled from 18 or more years old population by a stratified area sampling method which had been used as a common and reliable one in South Korea. Each half of the total sample were for science or technology. The survey was conducted in September, 2001. We found that many Korean adults had positive but disproportionate impressions of science or technology that were related mostly to utilities for life such as computer, internet, car, refrigerator, television, etc. Most of them failed to continue to be engaged to sciences and technologies after first exposure to them through compulsory education. They were not able to relate sciences or technologies to solving individual or social salient problems. This study shows that PUST would be improved by our engagement to sciences or technologies through their relationship with social problems or issues.

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Evaluating the Information Access Skills of Students of a College of Education in Ghana

  • Yebowaah, Franklina Adjoa;Owusu-Ansah, Christopher M.
    • Journal of Information Science Theory and Practice
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    • 제8권2호
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    • pp.45-54
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    • 2020
  • Access to relevant information determines the quality of life of an individual in society and the academe. Academic institutions have established information literacy programmes to enhance students' access to information. With the elevation of colleges of education to tertiary status in Ghana, pre-service teachers are now required to conduct research to improve their reflective thinking in order to be certified. However, the information access skills of students in colleges of education in Ghana are uncertain. This study draws empirical evidence from students in the Nusrat Jahan Ahmadiyya College of Education, Wa, Ghana on their information access skills. Primary data were collected from 303 respondents from the college using a stratified sampling procedure. The data were collected using a questionnaire and analysed using descriptive statistics. The results indicate that information is available to students through different sources such as the Internet, libraries, and contact with friends and authorities. However, students were limited in respect to access to relevant online resources for their academic activities due to inadequate information access skills. Potential solutions are discussed.

신사복 상의 설계를 위한 체형의 호칭 분류와 사이즈 스팩;36세에서 43세 우리나라 남성을 대상으로 (Designation of Bodytypes and Size Specifications for Designing of the Ready-made Jacket)

  • 김구자
    • 한국의류학회지
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    • 제23권8호
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    • pp.1240-1247
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    • 1999
  • The purpose of this study was to classify size specifications of Korean adult male for the men's ready-made garments especially jacket and dress shirts By the stratified sampling method data were collected by the real anthropometric measurement. Sample size was 263 subjects as the sample and their age range was from 36 to 43 years old 66 variables from the direct anthropometric data were applied to analyze. ANOVA is SPSSWIN 8.0 package was applied to the data and the expected frequency distribution of 10.000 men was calculated by the extraction of density function. This study was performed to classify size specificatios by the control dimensions. The drop values of 9,12 and 6 have the high coverage rate of 28.52% 23.44% respectively Obese body type ; H type HD type and HE type are composed of the majority of 55.47% of the subjects. According to the drop values size specifications and distribution of control dimensions are predicted About 69.82% of the expected frequency distribution were covered by 19 size specifications.

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