• 제목/요약/키워드: Reliability Measurement Factors

검색결과 435건 처리시간 0.027초

Developing a Measurement Instrument to Explore Variables that Predict Teachers' Referral Intentions: Using the Theory of Planned Behavior (TPB)

  • Lee, Ji-Yeon
    • 한국학교보건학회지
    • /
    • 제34권1호
    • /
    • pp.33-41
    • /
    • 2021
  • Purpose: Exploring the variables that predict teachers' intent when referring students to mental health professionals is important. The Theory of Planned Behavio (TPB) is a theory of predicting people's intentions of performing a particular behavior; the intent to perform a certain behavior is determined by three factors. (1) attitudes toward the behavior, (2) subjective norms, and (3) perceived control. This study aimed to develop a TPB measurement to investigate what variables predict the intentions of teacher's referral behaviors. Methods: A qualitative study following standardized manuals and guidelines for developing a TPB measurement was used. As a qualitative research method, the Consensual Qualitative Research-Modified (CQR-M) was used. According to the findings from the qualitative study, the quantitative measurement to assess teachers' referral intention, attitude, subjective norm, and behavioral control was developed. Results: The reliability and validity of the newly developed measurement were tested and verified. Conclusion: The newly developed measurement would contribute to a future empirical study that will examine predictors of teachers' referral intention.

초등학교 보건교사를 위한 융복합적 직무측정도구의 타당도와 신뢰도 분석 (Feasibility and Reliability Analysis of Convergent Job Measurement Tool for Elementary School Health Teachers)

  • 이미준
    • 융합정보논문지
    • /
    • 제9권9호
    • /
    • pp.117-125
    • /
    • 2019
  • 본 연구는 초등학교 보건교사를 대상으로 이미 개발된 직무분석의 측정도구에 대한 구성타당도와 신뢰도를 확인하기 위한 연구이다. 초등학교 보건교사 305명을 대상으로 50문항으로 구성된 직무분석 설문지를 사용하여 확인적 요인분석을 통해 이미 개발된 도구의 구성타당도와 신뢰도를 재검증하였다. 총 50문항은 8개의 하위척도로 구성되었으며, 4개의 요인구조를 가지고 있었다. 4개의 요인구조는 설문 기준에 따라 중요도, 수행빈도, 난이도로 분류되었으나, 중요도는 건강증진에 대한 중요도가 하나의 새로운 항목 요인으로 분류되었다. 모델의 적합도는 ${\chi}^2$ 검정결과 통계량은 3.664 (df=246, p<0.001), RMSEA=0.09, NFI=0.85, CFI=0.88로 나타났다. 하위척도의 내적일치도 Cronbach's ${\alpha}$는 0.88~0.96이었다. 본 연구를 통해 초등학교 보건교사의 직무분석 도구는 측정 도구로 타당하고 신뢰성 있는 도구임을 확인하였다.

Validity and Reliability of Total Quality Management Questionnaire in Greek Primary Education Settings

  • Karageorgos, Christos;Patsiaouras, Asterios;Kokaridas, Dimitrios;Kriemadis, Athanasios;Travlos, Antonios A.
    • Asian Journal of Business Environment
    • /
    • 제7권1호
    • /
    • pp.31-36
    • /
    • 2017
  • Purpose - The purpose of the study was to develop a reliable measurement tool for the evaluation of TQM application in Greek education settings and to examine the factors that determine quality of education. Research design, data, and methodology - A questionnaire commencing from the questions included in the Application Guide of Common Assessment Framework was used for research purposes. Each item was scored on a 5point Likert scale - to a sample of 112 educators (55 men, 57 women), all teachers working in public primary education schools. Factor analysis resulted in a questionnaire of 43 items consisting of five factors, teacher satisfaction, school management and operation, motivation, effectiveness of public school leadership and finance management. Results - Results revealed a positive correlation among all factors. Reliability results using Cronbach's α was high (a=.961) for all factors of the questionnaire ranging from α=.930 (for motivation) to α=.797 (for financial management). Additionally, ICC procedure revealed high values for the above mentioned factors. Conclusions - The study resulted in the construction of a reliable questionnaire focused exclusively on TQM that can be used in future studies using larger samples in different areas so as to draw useful conclusions regarding TQM application in Greek education settings and further identify the factors determining quality in education.

Research on the evaluation model for the impact of AI services

  • Soonduck Yoo
    • International Journal of Internet, Broadcasting and Communication
    • /
    • 제15권3호
    • /
    • pp.191-202
    • /
    • 2023
  • This study aims to propose a framework for evaluating the impact of artificial intelligence (AI) services, based on the concept of AI service impact. It also suggests a model for evaluating this impact and identifies relevant factors and measurement approaches for each item of the model. The study classifies the impact of AI services into five categories: ethics, safety and reliability, compliance, user rights, and environmental friendliness. It discusses these five categories from a broad perspective and provides 21 detailed factors for evaluating each category. In terms of ethics, the study introduces three additional factors-accessibility, openness, and fairness-to the ten items initially developed by KISDI. In the safety and reliability category, the study excludes factors such as dependability, policy, compliance, and awareness improvement as they can be better addressed from a technical perspective. The compliance category includes factors such as human rights protection, privacy protection, non-infringement, publicness, accountability, safety, transparency, policy compliance, and explainability.For the user rights category, the study excludes factors such as publicness, data management, policy compliance, awareness improvement, recoverability, openness, and accuracy. The environmental friendliness category encompasses diversity, publicness, dependability, transparency, awareness improvement, recoverability, and openness.This study lays the foundation for further related research and contributes to the establishment of relevant policies by establishing a model for evaluating the impact of AI services. Future research is required to assess the validity of the developed indicators and provide specific evaluation items for practical use, based on expert evaluations.

가정환경검사(HOME)의 타당화 연구 (A Validation Study on the Home Observation for Measurement of the Environment in Elementary Children)

  • 이주리
    • 가정과삶의질연구
    • /
    • 제10권1호통권19호
    • /
    • pp.1-13
    • /
    • 1992
  • The purpose of this study was to validate the Elementary HOME(Home Observation for Measurement of the Environment) with korean elementary children. Subjects were 536 mothers 1st-5th graders in the elementary schools in the Seoul. Pearson's r, pearcentage(%), phi($\phi$/), Cronbach's $\alpha$/ ware conducted for the statistical analysis. The major findings were as follows. 1) The item pass rate(percentage) were ranged 16~98. 2) The discriminant coefficients($\phi$/) of the item were ranged 0.06~0.58. 3) The reliability coefficients of the scale were that the split-falf was 0.84, and Cronbach's $\alpha$/ was 0.88. Considering the length of the scale, these reliability estimates appear to be at an acceptable level 4) The factor analysis and the correlations between HOME and SES indices and children's school schievement to test construct validity were conducted to test construct validity. Eight factors were extracted from the factor analysis and coefficients(r) were ranged 0.16~0.45 and -0.08~0.37.

  • PDF

A Study on the Development of Service Quality Scale in Traditional Market for Big Data Analysis

  • HWANG, Moon-Young
    • 한국인공지능학회지
    • /
    • 제7권1호
    • /
    • pp.23-59
    • /
    • 2019
  • The purpose of this study is to develop a measure of service quality in the traditional market by examining previous research on the service quality of the traditional market studied so far. After defining basic concepts through definition of traditional market and existing studies, 5 categories of configuration items for SERVQUAL measurement in traditional market were made up based on existing researches related to definition of service quality and service quality of traditional market. A survey was conducted on the items that fit the intention of this study and various statistical analyzes were conducted. Statistical analysis was performed using SPSS 22.0 and AMOS 22.0. The reliability of the items was measured by the reliability test, and the predictability and accuracy of the items were examined. The validity of the measured variables was verified through confirmatory factor analysis. Reliability, empathy, responsiveness, certainty, and tangibility were the most important factors in this study. Responsiveness factors include communication, time reduction, real time, promptness. Assurance factors include the assurance of delivery, prompt answers, product knowledge items. Tangibility factors include, convenient device systems, location information, presence as a fact, and as a result, the latest modern items are adopted. The quality of service in the traditional market developed in this study was found to be good in reliability and validity test. Confirmatory factor analysis result using structural equation model also met the conformity index standard. If service satisfaction is measured based on this research, basic data can be presented to policy makers who implement policies on traditional markets to make the right decisions. In addition, it will be able to provide traditional market operators with operational strategy and marketing data. In the future, based on the traditional market service quality scale developed in this study, it is necessary to grasp the factors to be continuously managed to improve the service quality of the traditional market, user satisfaction, and intention to use.

Improvement of reliability of an ISFET pH-meter by employing multiple sensors

  • 장기석;조병욱;김창수;최상복;손병기
    • 센서학회지
    • /
    • 제6권2호
    • /
    • pp.131-136
    • /
    • 1997
  • The ISFET(ion sensitive field effect transistor), a semiconductor ion sensor, has many advantages over conventional ion sensors. Various single-sensor type ISFET pH-meters have been developed. However, they could not be applied in fields because their performances are directly affected by the sensor condition. With only one sensor, the system could be easily damaged from environmental factors, and reliability of it is decreased. Therefore, a 4-channel PH-meter system is proposed to improve the reliability of ISFET pH-meter. It has 4 ISFETS as ion sensor, and a software which contains a new calibration and measurement algorithm appropriate to the system. The reliability of the system was proved by measuring hydrogen ion concentration in the pH standard solutions and buffer solutions.

  • PDF

파괴적 가속열화시험 데이터의 분산가정에 따른 수명비교 (Comparison of Storage Lifetimes by Variance Assumption using Accelerated Degradation Test Data)

  • 김종규;백승준;손영갑;박상현;이문호;강인식
    • 한국군사과학기술학회지
    • /
    • 제21권2호
    • /
    • pp.173-179
    • /
    • 2018
  • Estimating reliability of a non-repairable system using the degradation data, variance assumption such as homogeneity (constant) or heteroscedasticity (time-variant) could affect accuracy of reliability estimation. This paper showed reliability estimation and comparison results under normal conditions using accelerated degradation data obtained from destructive measurements, according to variance assumption of the data at each measurement time. Degradation data from three accelerated conditions with stress factors of temperature and humidity were used to estimate reliability. The $B_{10}$ lifetime was estimated as 1243.8 years by constant variance assumption, and 18.9 years by time-variant variance. And variance assumption provided different analysis results of important stresses to reliability. Thus, accurate assumption of variance at each measurement time is required when estimating reliability using degradation data of a non-repairable system.

소비 생활용품의 노출계수 조사 방법의 고찰 (Review of Exposure Assessment to Obtain Exposure Factors of Consumer Products)

  • 박지영;이기영;신호상;양원호
    • 한국환경보건학회지
    • /
    • 제39권6호
    • /
    • pp.532-540
    • /
    • 2013
  • Background: Exposure factors for consumer products have been developed since the 1980s. Such exposure factors are important in risk assessment. Since the exposure/use patterns of consumer products in a country may reflect its respective cultural, meteorological, and socio-economic circumstances, unique Korean exposure factors for consumer products are needed. Such exposure factors are required for newly-enacted chemical regulations in Korea. For this review, published papers and survey reports on exposure factors of consumer products were examined for their assessment methodologies. Results: Investigation into exposure factors for consumer products used a variety of methods: home visit, online, telephone, and mail surveys using questionnaires; face to face interviews; modeling using a constructed database; and direct measurement. To collect more accurate exposure information or to check the reliability of the sampling method, some studies were repeated using the same questionnaire, in-home observation, direct measurement of usage, and videotaping. In Korea, nationwide exposure surveys were conducted five times over five years to obtain Korean exposure factors. However, with the exception of the $5^{th}$-year study, the surveys were online questionnaires and only the $5^{th}$-year study validated the accuracy of exposure information by re-visits and direct measurement. Conclusion: Accurate exposure factors are an essential part of risk assessment to assure safe use of consumer products. For better and safer management of consumer products, accurate exposure factors in Korea should be assessed for various exposure pathways.

대형배출원에서의 수은 측정방법 비교 및 배출계수 개발에 관한 연구 (A Study on the Comparison of Measuring Methods and Development of Emssion Factor on Mercury from Large-Scale Emission Sources)

  • 김형천;김록호;김종현;임승영;강대일;홍지형;장기원
    • 한국대기환경학회지
    • /
    • 제32권2호
    • /
    • pp.184-192
    • /
    • 2016
  • Recently, studies on reducing mercury have been actively conducted worldwide, which include the current status of mercury emissions and mercury control technology. Among the control technology, Sorbent Trap measurement method has been aggressively developed due to its reliability, easiness in measurement and analysis. The purpose of this study is to evaluate the applicability of the new international measurement method; Sorbent Trap. For this, the study compared the Sorbent trap method (US EPA Method 30B) and the Korean Standard Method for Examination of Air (ES 01408.1) to evaluate their reliability, and developed mercury emission factors. As the result, the relative standard deviations (% RSD) of the two methods were 3.5~13.4% at Coal-fired Power Plants (CPP), 4.0~18.4% at Cement Kilns (CK), and 3.0~11.3% at Medical Waste Incinerators (MWI). The emissions factors were developed as 14.50 kg/ton at CPP, 45.10 kg/ton at CK, and 1,290.2 kg/ton at MWI.