• Journal of Families and Better Life
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• v.12 no.2
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• pp.60-67
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• 1994

본 연구는 아동의 자기-효능감을 측정할 수 있는 검사도구를 개발하는데 그 목적을 두고 있다 연구대상자는 554명의 국민학교 5, 6학년 아동들로서, 선행연구를 중심으로 구성 한 문항들에 대한 몇 차례의 예비조사를 통하여 최종 23문항을 선정하였고 척도 구성을 위 한 검증 결과는 다음과 같다. 척도의 문항 양호도 검증을 위한 문항의 반응율과 변별도 분 석결과는 대체로 양호하게 나타났으며 척도의 타당도 검증을 위한 요인분석 결과 본 검사도 구가 세 요인으로 구성되어 있는 것으로 확인되었다. 신뢰도 분석 결과는 Cronbach's a 값 이 .62에서 .79로 나타났다.

• Journal of Educational Research in Mathematics
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• v.14 no.4
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• pp.387-401
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• 2004

The recent international comparative studies such as PISA(Program for International Student Assessment) and TIMSS-R(Third International Mathematics and Science Study-Repeat) provide results of relative mathematics achievement of participating countries. The purpose of this paper is to compare the mathematics results of PISA and TIMSS-R. To make PISA and TIMSS-R results comparable, they were standardized. The close investigation of these standardized results reveals that the two Asian countries(Korea and Japan) and several English speaking countries have the commonality in mathematics achievement. Thus this study looks for patterns and similarities within a group of Asian countries(Korea and Japan) and Western countries(the U.S and Australia) by in-depth analysis of PISA mathematics achievement based on item response theory. As a result, it was noted that Western countries tend to perform well on open constructed items and are likely to perform better when an item involves less formal mathematics. On the other hand, Asian countries perform well when an item involves numeric or algebraic computation related to curriculum-based content, but they are relative poor at an item calls for verbal explanations or interpretations of graphs.

• The Korean Journal of Elementary Counseling
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• v.11 no.2
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• pp.219-235
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• 2012

The purpose of this study was to identify the factors of school happiness of elementary students by implicit theory. For this purpose, 192 items for happiness were constructed based on 76 5th and 6th elementary students' free descriptions. Then 75 items were selected for preliminary factor analysis based on item appropriateness by evaluation of 28 elementary teachers. The happiness inventory composed 136 items was administered to 155 students and 36 items were selected based on exploratory factor analysis results. 4 factors-optimism, positive peer-relationship, self-esteem, consideration, and teacher-relationship-were extracted by principal component analysis. The confirmatory factor analysis indices indicated that 4 factor model of happiness was fit. The reliability(Cronbach's ${\alpha}$) was .996.

• Korean Journal of Cognitive Science
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• v.30 no.3
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• pp.133-156
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• 2019

To investigate how personality test items are understood by participants, their semantic representations were explored by Latent Semantic Analysis, In this thesis, Semantic Similarity Matrix was proposed, which contains cosine similarity of semantic representations between test items and personality traits. The matrix was compared to traditional factor loading matrix. In preliminary study, semantic space was constructed from the passages describing the five traits, collected from 154 undergraduate participants. In study 1, positive correlation was observed between the factor loading matrix of Korean shorten BFI and its semantic similarity matrix. In study 2, short personality test was constructed from semantic similarity matrix, and observed that its factor loading matrix was positively correlated with the semantic similarity matrix as well. In conclusion, the results implies that the factor structure of personality test can be inferred from semantic similarity between the items and factors.

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.608-618
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• 2021

The aim of this study was to verify the feasibility and reliability of the program outcome indirect measurement tool developed for nursing college students in Korean. 396 nursing students from 5 nursing colleges participated in this study, data were collected from November 22 to December 10, 2019. Data analysis was conducted using the IBM Statistics SPSS 21.0 and AMOS 21.0 programs to analyze item analysis, exploratory and confirmatory factor analysis. As a result of the item analysis, all 79 items were selected for factor analysis. In the exploratory factor analysis, five items that were loaded with other factors were deleted. The final factor loading range was from .37 to .86, and the cumulative explanatory variance for 12 factors was 71.71%. No items were deleted as a result of the confirmatory factor analysis, and the final scale was consisted of 74 items. The average score for scale was 3.78 and Cronbach' α was .98. The feasibility and reliability of the program outcome indirect measurement tool have been verified through this study. Therefore it can be used as a more standardized indirect measurement tool for nursing college students.

• Korean Journal of Culture and Social Issue
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• v.20 no.4
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• pp.415-441
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• 2014

The purpose of this study was to examine the cultural characteristics of Korean interpersonal relationships. A total of 45 preliminary items were selected through book and literature review about the characteristics of the Korean or Korean society in study 1. The first survey data were collected from the Korean university students. Through the item analysis and Exploratory Factor Analysis(EFA), 4 factors composed of 32 items were extracted. Four factors were found: 'friendly attitude, harmony, jeong(interpersonal affection), keeping relationship', and using content analysis, 20 items were refined. Study 2 was conducted with the data collected from the Korea adults. As the result of carrying out EFA and Confirmatory Factor Analysis(CFA), the final 17 items were fixed as an affective relationships scale of the Korean. And CFA were implemented to evaluate discriminative validity. Finally, the implications and limitations of this study were discussed.

• Journal of Practical Agriculture & Fisheries Research
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• v.23 no.1
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• pp.89-104
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• 2021

Based on the TF-IDF weighted value that evaluates the importance of words that play a key role, the semantic network analysis(SNA) was conducted on the self-introduction letter of freshman at Korea National College of Agriculture and Fisheries(KNCAF) in 2020. The top three words calculated by TF-IDF weights were agriculture, mathematics, study (Q. 1), clubs, plants, friends (Q. 2), friends, clubs, opinions, (Q. 3), mushrooms, insects, and fathers (Q. 4). In the relationship between words, the words with high betweenness centrality are reason, high school, attending (Q. 1), garbage, high school, school (Q. 2), importance, misunderstanding, completion (Q.3), processing, feed, and farmhouse (Q. 4). The words with high degree centrality are high school, inquiry, grades (Q. 1), garbage, cleanup, class time (Q. 2), opinion, meetings, volunteer activities (Q.3), processing, space, and practice (Q. 4). The combination of words with high frequency of simultaneous appearances, that is, high correlation, appeared as 'certification - acquisition', 'problem - solution', 'science - life', and 'misunderstanding - concession'. In cluster analysis, the number of clusters obtained by the height of cluster dendrogram was 2(Q.1), 4(Q.2, 4) and 5(Q. 3). At this time, the cohesion in Cluster was high and the heterogeneity between Clusters was clearly shown.

• Journal of Educational Research in Mathematics
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• v.25 no.3
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• pp.281-302
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• 2015

In the current study, answer sheets from 8007 students in 236 Korean schools were selected and analyzed to examine errors that emerge in the process of solving descriptive questions of the National Educational Achievement Assessment in mathematics. Questions used in the analysis were response assessment covering middle school mathematics topics: "mathematical symbols and equations" and "functions." The behavioral domain of the questions was that of "problem solving and computation," which requires establishing an equation for a word problem and allows the calculation of an answer that meets a certain condition. The analysis results revealed various errors in each stage of each question, from understanding to solving; the study attempts to conjecture causes for these errors and draw pedagogical implications.

• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.17-17
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• 2010

본 연구는 학생들의 과학 경험의 정도를 정량화 하는데 있어 통일된 측정 도구를 제시하는 것이다. 측정 도구를 구성하는 요인들은 선행연구를 통해 학교 안 과학 경험은 일반 활동 경험, 과학 탐구 경험, 실험 기구 경험으로 세분화 되며 학교 밖 과학 경험은 일반 활동 경험, 취미 활동 경험, 현장 견학 경험 6개의 영역으로 구분을 할 수 있었다. 각각의 요인을 구성하는 질문은 NAEP(1987)에서 사용된 과학 경험 검사 도구와 신영준(2000)의 과학 경험 검사 도구의 문항 중 일부를 발췌하고 더불어 과학 경험에 대한 개방적인 설문지를 통하여 1차 검사를 실시하여 얻은 답변 중 빈도가 많은 답변과 중등 교과서의 탐색적 분석을 통해 영역별 10문항씩 6개 영역의 문항을 선정하였다. 사전 설문조사와 선행 연구를 바탕으로 개발한 검사지를 고등학교 1학년 학생 413명을 대상으로 2차 검사를 실시하였다. 개발한 측정 도구의 타당도는 내용타당도와 구인타당도로 검사하였다. 내용타당도는 2명의 현직 중등교사와 2명의 과학교육전문가가 각 문항이 측정하고자 하는 목적에 부합하는지 심사하였고, 구인타당도는 요인분석을 통해 검사하였다. 신뢰도는 Cronbach $\alpha$를 통하여 문항을 분석하였다. 6개의 영역의 요인에 대하여 타당도와 신뢰도 분석 결과 6개 영역으로 구성된 60문항의 측정 도구는 학생들의 과학 경험을 측정하는 도구로서 적절하다는 결론을 내렸다.

• Journal of Gifted/Talented Education
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• v.16 no.1
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• pp.81-100
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• 2006

In this paper, it conducted the following works to develop the selective test for the gifted of information science in elementary schools. First, it presented the discrete mathematical thinking as an essential competence of elementary information science gifted, through theoretical research with many expert's studies, in order to investigate the definition and characteristics of information science gifted. Second, it developed a test to measure the discrete mathematical thinking, according to the results of analysis of discrete mathematical elements, appeared in the 7th national mathematics curriculum, in order to extract the characteristics of selective test for elementary information science gifted. Third, regarding the verification of items in a newly developed test, it adjusted the difficulty and discrimination by conducting 2 sessions of preliminary test, and then finally confirmed that the standards of items in the test, by testifying sufficient level of validity after the application to a main experiment.