• 감성과학
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• 제21권2호
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• pp.113-124
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• 2018

비교질문 검사의 논리적 가정은 유죄인 조사대상자는 비교질문보다 관련질문에 주의를 더 기울이고 무죄인 조사대상자는 관련질문보다 비교질문에 주의를 더 기울인다는 것이다. 본 연구는 기능적자기공명영상(fMRI)을 이용하여 비교질문검사의 논리적 타당성을 검증하였다. 이를 위하여 실험참여자에게 모의 범죄를 수행하도록 한 후 유죄조건과 무죄조건에서 비교질문검사를 실시하면서 뇌 반응을 측정하였다. 뇌 영상을 촬영한 후에는 관련질문과 비교질문에 '아니오'라고 응답하는 것이 얼마나 심리적으로 부담되는지를 평가하도록 하였다. 행동 반응 결과, 유죄조건에서 비교질문보다 관련질문에 '아니오'라고 응답하는 것이 더 부담이 되는 것으로 나타났고 무죄조건에서는 두 질문 유형 간에 유의한 차이가 나타나지 않았다. 뇌 반응 결과, 유죄조건에서는 비교질문에 비해 관련질문이 제시되었을 때 우측 상측두회와 우측 하전두회에서 더 큰 활성화가 관찰되었다. 그러나 무죄조건 분석 결과 질문유형에 따른 뇌 영역 활성화 차이는 없는 것으로 나타났다. 이러한 결과에 근거하여 유죄조건과 무죄조건에 대한 비교질문검사의 논리적 가정을 논의하였다.

• 한국가정과교육학회지
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• 제21권1호
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• pp.71-88
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• 2009

본 연구는 학교도서관 활용수업이 중학생의 가정과 학업성취도에 미치는 효과를 알아보는데 목적이 있다. 연구문제는 학교도서관 활용수업은 가정과 학업성취도를 높이는데 효과가 있는가?로 설정하고, 경남 J시에 소재한 중학교 3학년 여학생 164명(실험반 82명, 비교반 82명)을 대상으로 도서관 활용수업과 일반 강의식 수업을 14시간 실시하였다. 교육효과를 검증하기 위하여 학업성취도 검사를 사전과 사후에 실시한 후 SPSS 12.0을 이용하여 빈도분석, 카이제곱 검정, 독립표본 t-검증, 대응표본 t-검증을 실시하였다. 이 연구의 결과 도서관 활용수업을 받은 집단과 강의식 수업을 받은 집단 모두 전체 학업성취도 점수는 상승하였으며, 실험집단의 사전과 사후점수의 차이가 더 크게 나타났다. 지필평가 결과는 비교집단이 사전과 사후점수에 유의한 차이가 있었으며, 수행평가는 두 집단 모두 사전과 사후 점수에 통계적으로 유의한 차이가 있었다. 그러나 사전과 사후의 변화량에 대한 실험집단과 비교집단 간에는 전체 학업 성취, 지필평가, 수행평가 모두 통계적으로 유의한 차이가 없었다. 이러한 결과로부터 평가계획이 더욱 체계적으로 이루어져야하며 도서관 활용수업 중의 활동이 학습에 교육적 효과를 올릴 수 있도록 설계되어야 함을 알 수 있다.

• 한국임상수의학회지
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• 제28권1호
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• pp.108-112
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• 2011

In clinical settings, researchers often want to assess agreement between two measurements (or tests) of the same continuous variable. For example, when new point-of-care analyzer for testing blood glucose level were introduced clinicians need to compare results from standard or established laboratory method of measurement to those of new or point-of-care analyzer. The question in a method-comparison study would either of two different methods be used to measure the same variable equivalently. In this paper common misuse of statistical methodologies seen in the medical literatures such as correlation coefficient and paired t-test are discussed. The Bland-Altman technique has been widely used for this purpose and provides a graphic in presentation of the findings from a method-comparison study, with a mean value of measurement, this bias and the limits of agreement. For ease of application and interpretation of this technique we discussed the analysis procedure and illustrated with two worked examples. Finally, a number of alternative ways in which data can be analysed and reported in such studies were reviewed.

• 수산해양교육연구
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• 제19권1호
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• pp.91-100
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• 2007

The purpose of this study was to compare personality existed in the populations of the mentally retarded with and without Down syndrome. For this purpose, two research questions were proposed. (a) Is there any difference of personality existed between two groups? (b) Is there any difference of sub-personality existed between two groups by disability degree? Participants in this are 159 people with mental retardation(the mentally retarded with Down syndrom: 82, the mentally retarded without Down syndrom : 77) in P and S cities. First of all, the reliability in measurement instrument was verified through a pre-study. For the first research question, t-test was used. And two way ANOVA was used to investigate the second research question. The results of this study were as follows:First, according to the result of t-test, there were significant differences of personality scores between two groups. And there were significant differences between the mentally retarded with and without Down syndrome regard to expectation of success, outerdirectedness, positive or negative responding tendency, curiosity among sub-personality factors. Second, the result of the two way ANOVA analysis, no meaningful statistically difference in personality by degree of the impairment. But It showed difference regard to effectancy motivation, expectation of success, curiosity among sub-personality factors between the mentally retarded with and without Down syndrome by impairment degree.

• 한국산림과학회지
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• 제88권3호
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• pp.400-407
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• 1999

본 연구에서는 가치평가를 위한 설문내용은 일치하지만 상이한 질문형에 따라 평가된 휴양가치의 차이가 나타나는 지를 밝히는 데 목적을 두였다. 자료 수집을 위해 속리산 국립공원 방문객을 대상으로 폐쇄형인 양분선택 방식과 개방형인 직접지불 방식, 두 가지 질문형에 대해 동일한 피설문자에게 설문조사를 실시하였다. 이 때 얻고자 하는 방문객의 휴양가치는 동등변이에 기초한 최대지불의사액이었다. 분석에서 사용된 독립변수는 여행비용과 월 개인소득이다. 가치평가를 위한 기본모형은 단순선형을 가정하였으며 폐쇄형은 프로빗, 개방형은 토빗모형에 근거한 이변량정규분포모형을 사용하였다. 분석 결과, 응답자가 동일한 경우에 산출된 지불의사액은 질문형에 따라 차이가 없는 것으로 나타났으며 성인 방문객 1인의 5년간 속리산 국립공원에 대한 휴양가치는 25,556원으로 산출되었다.

• 사상체질의학회지
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• 제21권1호
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• pp.63-78
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• 2009

1. Purpose This study has focused on response rates of the questionnaire which considered as a basic data to identify constitution for American. 2. Methods By analysing the tendency of the respondents who has defined constitution by clinical diagnosis and comparing of their answers, the result of their constitution analysis by our questionnaire were re-examed. The answer of each question to each constitution were tested how it is relevent to a scale of a constitution. Each item response rate on SF_SSCQ-A was analysed about those who had been tested and diagnosed as Taeyangin, Soyangin, Taeeumin, Soeumin respectively. 3. Results There were the 55 significant items; 13 Taeyangin items, 13 Soyangin items, 20 Taeeumin items, 9 Soeumin items. However, there were the 11 low response rate items (below 10 %) and 4 no response items.

• 공학교육연구
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• 제19권3호
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• pp.35-43
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• 2016

The purpose of this study is to explore directions for improvement of teaching at college of engineering based on analysis of differences from course evaluation of students and instructors. Data was collected from 86 instructors' ratings on courses and their 3004 students' ratings on courses at college of engineering in a two-year, a three-year college and a University from 2010 to 2013. The results of the survey indicate significant differences in the statistics from the several questions between the instructors and the students as well as between the course in a two-year, a three-year college and in a University. First, instructors' self evaluation of the course is higher than students' satisfaction ratings of the course on the average. Instructors' self evaluation are high on the questions 'The subject was proper for the course', 'The course provided the latest theory and trend of the field', and 'Fairness and objectivity about the exams and the assignments'. Also, the difference between Instructors and students on the questions is significant in the statistics. The professor must make sure that students know well how to organize the course content and the method for feedback to test result and homework. Second, instructors have higher satisfaction ratings on the six questions and students have higher satisfaction ratings on the one question('Make students participate in the class effectively') at a two-year and a three-year college. However, students have higher satisfaction ratings on the three questions('Make students participate in the class effectively', 'Concern about students' learning process', and 'Use of E-learning and media equipments') and instructors have higher satisfaction ratings on the one question. It means instructors at a University feel pressure on a teaching and they are unsatisfied with their teaching skills. Third, the result of comparing six parts of the questions shows that students' satisfaction ratings are higher on 'Students participation' and 'Application of media equipments' parts whereas instructors' self evaluation are higher on 'Exams and assignments' part. Fourth, the question 'Make students participate in the class effectively' is significant in statistic based on comparison of instructors and students, and comparison of in a college and a University. Students' satisfaction ratings are higher than instructors' self evaluation.

• 한국화재소방학회논문지
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• 제30권2호
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• pp.49-55
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• 2016

강구조용 내화피복은 내화성능평가를 통하여 내화구조로 인정을 받아야 사용할 수 있는데 기둥용 내화피복은 4면, 보용 내화피복은 3면을 가열하여 내화성능을 평가한다. 4면이 균등하게 가열되는 기둥과 달리 3면이 가열되는 보의 경우 비가열면인 상부의 온도가 가열면의 온도와 차이가 있을 것이 예상된다. 보용 내화피복 내화성능 평가시 비가열면의 온도도 포함되는데 비가열면의 온도가 부재의 온도와 유의한 차이가 있다면 온도측정 부위에 대한 신중한 검토가 필요할 것이다. 이에 본 논문에서 내화구조로 인정된 보용 내화피복의 내화성능시험결과를 분석하여 보용 내화피복 내화성능 평가단면의 타당성을 살펴보고자 한다.

• 한국초등과학교육학회지:초등과학교육
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• 제29권4호
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• pp.526-537
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• 2010

The purpose of this study was to compare the effects of two different types of texts, which were narrative and expository, on the understanding of content. Elementary students' perceptions of the two types of the texts were also investigated. In the comparison of the effects on the understanding of the text contents, test scores of mind-mapping, closed-answer question, and essay test were used. The analyses of mind-mapping tests showed narrative text was more effective to figure out main concepts of the text throughout the mind-mapping test. But expository text was more effective in the hierarchical organization of the concepts. In the closed-answer questions and essay test, narrative text was more effective than expository text. However when the contents of text were difficult and complex, there was no meaningful difference between the two types of texts. The analyses of students' perceptions of the texts showed that narrative texts were preferred. Students perceived that the narrative text was more interesting and familiar. However, the perceptions of helpful text for their science learning were not different by the types of texts.

• 한국농공학회논문집
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• 제62권3호
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• pp.29-38
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• 2020

Since some warm-mix asphalt (WMA) concretes were known to show poorer rut resistance than the hot-mix asphalt (HMA) concretes, many studies were performed in efforts of improving its performance at high temperature. The reason is assumed to be due to the moisture remaining in aggregates dried at lower temperature. Therefore, not only the rut resistance, the crack resistance of WMA concrete was also in question. In this study, fatigue life of WMA concrete was evaluated in comparison with HMA using 3-point bending (3PB) beam test. The asphalt mixtures were prepared based on Korean mix-design guide using a 13 mm dense-graded aggregate and 6 binders; two HMA binders and four WMA binders. By 3PB fatigue test, normal (unmodified) and polymer-modified WMA concretes were evaluated in comparison with normal and polymer-modified HMA concretes at a low temperature (-5℃). The results showed that most of WMA concretes showed longer fatigue lives than HMA concretes, even though the same PG binders were used for HMA and WMA. This result indicates that the WMA concretes have stronger resistance against fatigue cracking than HMA at the low temperature, and this result is in contrast to the high-temperature performance test.