• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.1
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• pp.33-46
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• 2005

First, the author reviewed the relationship between human brain development and cognitive functions such as attention, perception, memory, and language. And then Luria's neurodevelopmental theory and its application on the Neuropsychological test battery for children were reviewed. Finally, various assessment tools to evaluate attention, intellectual function, visual-perception, visual-motor coordination, and executive function were examined.

• Journal of the Korean School Mathematics Society
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• v.9 no.3
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• pp.287-308
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• 2006

In this study, an instrument of mathematical problem solving ability test was considered, and the difference between gifted and regular students in the ability were investigated by the test. The instrument consists of 10 items, and verified its quality due to reliability, validity and discrimination. Participants were 168 regular students and 150 gifted from seventh grade. As a result, not only problem solving but also problem finding and problem posing could be the characteristics of the giftedness.

• Horticultural Science & Technology
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• v.30 no.3
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• pp.308-324
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• 2012

The aim of this study is to develop and construct the elements of a new evaluation tool to assess the effectiveness of a horticultural therapy. Delphi method was applied to classify the realms of evaluation and specify their components and constituting items. Delphi process was performed through three rounds and 24 professionals attended all the rounds as panel members. Some of the items were revised or removed according to the results of such tests as content validity ratio, agreement rate, convergency and stability of each item. On the contrary, a few new items were added by accepting the opinions of the professional panels. Previous to the Delphi, the realms of evaluation were classified into physical, cognitional, psycho-emotional and social ones on the basis of literature review, professionals' consultation and in-depth interview with practitioners. At the first round, 112 items constituting four realms were reviewed. The numbers of items to be reviewed were reduced to 107 at the second round and to 102 at the third round. As a result, 98 items in 4 realms were decided as proper evaluation points of horticultural therapy. The compositions of the four respective realms are as follows: 5 components and 27 items in physical realm; 4 components and 25 items in cognitional realm; 2 components and 24 items in psycho-emotional realm; and 4 components and 22 items in social realm. These realms, components and specific items derived from this study constitute indices to evaluate the effectiveness of horticultural therapy. In addition, they might be utilized as good guidelines for planning horticultural therapy programs.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.511-518
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• 2020

The purpose of this study is to emphasize the importance of the safety and health ability to safely protect body in a risky situation in infancy, but due to the lack of a valid test tool for measuring infant safety knowledge, measure the safety and health knowledge of infants. In order to achieve the purpose of the study, opinions of education experts and early childhood education experts were collected, and suitable factors for measuring safety and health knowledge of children aged 3-5 years were extracted. The measurement questions developed based on this were surveyed on 186 children aged 3-5 years old to verify the relevance of the question composition and the reliability of the contents. In the distribution of the item response, values of 0.8 or less were deleted, and items with a correlation of r<.40 or less were also deleted, and the reliability test showed more than .70. After exploratory factor analysis, it was developed into 23 questions in 3 areas. The total score of safety and health knowledge for the final question and the degree of correlation were above .80. The tool for measuring child safety and health knowledge developed in this study was confirmed to be appropriate for item discrimination, item reliability, and content validity, and thus will be used as basic data for measuring child safety and health knowledge. After the early childhood safety and health education program is implemented, Further research should verify the effectiveness of the early childhood safety and health program.

• Journal of The Korean Association For Science Education
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• v.28 no.2
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• pp.139-149
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• 2008

The purpose of this study is to develop a valid and reliable instrument for measuring scientific problem-finding ability for the scientifically-gifted student. On the basis of an operational definition of scientific problem-finding ability, this instrument consists of five sections(appropriateness, flexibility, originality, elaboration, and valuation) which are designed for measuring the ability of the scientifically-gifted. This instrument was checked the validity of content and evaluation criteria by the five experienced specialists in science education, and then was administered to 38 students of science high school. Because the validity of content and evaluation criteria, construct validity, inter-rater reliability, item difficulty, and item discrimination are suitable for the criteria of good test, this developed instrument in this study is considered valid and reliable.

• The Journal of Korean Association of Computer Education
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• v.10 no.6
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• pp.29-38
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• 2007

The purpose of this study is developing of Korean scale for measuring elementary school pupil's online game addiction tendency by scientific development process. The pilot test was conducted in three times, and the items analysis, reliability analysis, and factor analysis was conducted at every test, so the inquiries for main survey composed of 30 inquiry items was decided. Some referential variables was included in the inquiries for main survey such as inquiry items for testing the actual using conditions and attitude of online game, the aggressive behavior scale, the impulsive behavior scale, the solitude scale, and the self-control scale. 2,584 fifth and sixth grade students in elementary school participated in main survey. For main survey results, items analysis and reliability analysis was conducted and validity was verified by exploratory factor analysis and correlation analysis. Finally, the final inquiry items composed of 7 factors, 30 items and the grouping criterion were developed through the standardization process.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.1
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• pp.221-229
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• 2015

This paper looks into the measurement of modeling ability in different fields like science, mathematics, operations research and management science and emulates the ideas to system analysis and design where modeling is a very useful skill. An assessment tool was designed to measure the graphical modeling ability in systems analysis and design. It was administered to 92 students and submitted to 10 MIS experts and tested statistically for its reliability and validity.

• Journal of The Korean Association For Science Education
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• v.18 no.3
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• pp.313-325
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• 1998

The purpose of this study was to develop for PLEIS(Psychological Learning Environment Instrument generated by science teachers). The procedure of validations' PLEIS is also examined. Samples of 1.274 for this study were selected from the secondary school students. It was conducted as a procedure development of the instrument with teachers' perception survey, students' perception response survey. second pilot for the measurement instrument. Findings indicate as the follows. (1) PLEIS was formed 3rd construct dimension, 9th subcategory. (2) the instrument consisting of 45-items' scale were used for psychological learning environment. (3) all item-type were applied 5-Likert Scale. (4) internal consistency of Cronbach ${\alpha}$ was 0.93.

• Journal of Korean Home Economics Education Association
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• v.29 no.1
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• pp.35-56
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• 2017

The purposes of this study were to develop an instrument to examine the latent domains to measure H-PCK and verify the reliability and validity of the instrument. To accomplish these purposes, instrument item development, content validity, pilot study, and main study were conducted. The results were as follows. First, based on a review of extant literature, 29 items for H-PCK were developed. Seven items were deleted from the original instrument after determining content validity by 10 in-service Home Economics teachers, which resulted in the 22 items of 3 domains(Knowledge of perspective on Home Economics Education(KP), Knowledge of Home Economics curriculum(KC), Knowledge of Home Economics instructional strategies(KI)). Second, data were collected from 137 Home Economics teachers via mail survey for pilot study to establish reliabilities for each individual domain and across the domains based on Cronbach's ${\alpha}$ and item-total correlation. The result showed good reliabilities in the cut-off value of .7 and .5 for Cronbach's ${\alpha}$ and for item-total correlation respectively. Third, the main study was performed with 220 Home Economics teachers via e-mail survey and the reliability and validity tests were conducted. The reliability test results showed good reliabilities. The model for confirmatory factor analysis(CFA) provided a good fit to the data (e.g., CFI=.92, RMSEA=.06, SRMR=.05) to evaluate construct validity. The three domains of KP, KC, and KI demonstrated the acceptable convergent and discriminant validities in each individual domain and over domains. Thus, the instrument in this study may be utilized to measure H-PCK. Finally, criterion-related validity was performed to examine the extent to which the three domains are related to teacher efficacy with Pearson correlation (${\rho}$). It was relatively highly correlated at ${\rho}=.7$. In addition, the higher H-PCK the Home Economics teachers had, the higher teacher efficacy they had. The final instrument consisting of 22 items from 3 domains were determined through the entire procedure.

• Journal of the Korean School Mathematics Society
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• v.23 no.1
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• pp.67-88
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• 2020

This study analyzed the characteristics of prospective teachers' Horizon Content Knowledge(HCK) related to understandings of an inverse function symbol. This study aimed to deduce implications of developing HCK in terms of the means which would enhance mathematics teachers' professional development. In order to achieve the aim, this study identified features of HCK by examining the previous literature on HCK, which has conformed Ball & Bass(2009) and exploring the research in AMT, including Zazkis & Leikin(2010) which has emphasized cultivating AMT through university mathematics education. In addition, a questionnaire was developed regarding the features of HCK and taken by 57 prospective teachers. By analyzing the data obtained from the written responses the participants presented, this study delineated the specific characteristics of the teachers' HCK with regard to an inverse function symbol. Additionally, several issues in the teacher education for improving HCK were discussed, and the results of this research could inspire designing and implementing a teacher education program relevant to HCK.