• Korean Journal of Child Studies
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• v.26 no.1
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• pp.279-297
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• 2005

The purpose of this preliminary study was to test the validity and reliability Sexual Development Assessment Scale for Adolescents. Subjects were 579 middle school and 504 high school students in Seoul and Gyeonggido. Statistical analyses were by factor analyses, Cronbach's ${\alpha}$, $x^2$ value and Cramer's V. Construct validity was composed with 10 factors on sexual Development Assessment Scale for middle school students and 12 factors for high school students. Reliability of each subscale was high and the item discrimination, $x^2$ value and Cramer's V were also meaningful.

• Journal of the Society of Naval Architects of Korea
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• v.41 no.5
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• pp.48-54
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• 2004

The present study investigates the fire development characteristics on a Ro-Ro ferry vehicle using the modified FDS code considering droplet break-up. Numerical simulations are compared with model-scale tests for validation of field model. The predicted results such as smoke layer temperature and oxygen concentration are in good agreement with model-scale tests. Also, it is shown that water spray systems are very effective to control the fire development on a vehicle deck. These numerical simulations using a field model may be helpful in accomplishing the fire safety for marine vehicle.

• Journal of the Korean institute of surface engineering
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• v.55 no.6
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• pp.383-389
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• 2022

Natural(outdoor) and accelerated(artificial) weathering tests were performed to investigate their influence on polycarbonate. The polycarbonate materials were prepared of various formulations divided into three batches, with existing, development materials1, development materials2, containing mixture of UV additives. Weathering tests were carried out as outdoor weathering(Seosan, South Korea) and accelerated weathering(xenon-arc), and the results analysis were evaluated based on yellow-index(YI), scanning electron microscope(SEM/EDS), energy dispersive x-ray spectroscopy(XRD), and gel permeation chromatography(GPC). Among the three materials, processing method development materials1 with UV stabilizer was excellent in weathering. This study can provide basic data for standardization of development and performance evaluation on livestock barn roof.

• International Journal of Advanced Culture Technology
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• v.11 no.4
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• pp.163-168
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• 2023

The purpose of the study was to examine the mediating effect of early childhood teachers' professional development in the relationship between intrapersonal intelligence and teacher-child interactions. We conducted a cross-sectional study with 324 early childhood teachers working at kindergartens and child-care centers in South Korea. The empirical data using survey questionnaires were collected by administering the Adult Introspective Intelligence Scale, the Professional Development Scale for Early Childhood Teachers, and the Teacher-child Interactions Scale. SPSS and Hayes' PROCESS macro weres utilized. The results showed the statistically positive correlations between the major variable and the mediating effect of early childhood teachers' professional development in the relationship between intrapersonal intelligence and teacher-child interactions.

• Journal of the Korean Institute of Landscape Architecture
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• v.22 no.2
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• pp.25-38
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• 1994

Service quality is defined as the perceived difference between performed service and expected service. In this paper, theme park service quality is conceptualized in relation to consumer's total satisfaction on theme park visitation. A 20-item scale was constructed to measure Theme Park Service Quality. The following four steps were employed in developing the service quality measure: 1)identification of service quality dimensions, 2)development of scales from a set of items describing the dimensions, 3)empirical verification of the scale's construct validity which refers to dimensionality, convergent validity, and nomological validity, and 4)confirmation of the utility. The scale was found to be an empirically valid and reliable evaluation tool for service quality enhancement. In addition, the scale would be an useful criterion for market segmentation and positioning.

• Korean Journal of Child Studies
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• v.24 no.5
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• pp.105-118
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• 2003

Construction of the Prosocial Behavior Scale for young children(PBSYC) was based on document research and interviews with kindergarten teachers and child development specialists. After 200 kindergarten teachers evaluated the 42 items of the PBSYC, factor analysis was conducted; items were categorized into seven factors: leadership, helping, communication, concern, proximity, sharing and empathy. As factors showed high correlation. The prosocial behavior of 306 4 to 5 year old children was measured with the PBSYC and compared with the Babock, Hartle & Lamme(l995) scale. The resulting correlation between the 2 scales was .764. Further tests indicate that the PBSYC is a valid and reliable scale for the measurement of prosocial behavior in young children.

• Journal of the Korean Institute of Educational Facilities
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• v.24 no.3
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• pp.15-21
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• 2017

The purpose of this study was to develop satisfaction scale of school toilet that was completed repair work and examine its validity. In order to develop general and scientific satisfaction scale, the data was collected and analyzed targeting 3,694 participants from seventy schools which were elementary, middle, and high schools participating in improvement projects of school toilet in 2015 and 2016. Satisfaction scale of seventeen items was developed by using exploratory factor analysis and confirmatory factor analysis. Total Cronbach's ${\alpha}$ of seventeen items resulted in .950. Factor loading indicated over 0.6. Factor explanation of each item showed that was relatively high. This scale can be used to research unit school satisfaction and utilized for further research. The implication of this study was a reliable and valid instrument for measuring the satisfaction of school toilet.

• Journal of Fisheries and Marine Sciences Education
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• v.18 no.1
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• pp.49-57
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• 2006

The purpose of this study was to develop and validate of mentoring-function scale for college students. This research collected preliminary data from 219 college students' responses for item and scale quality analyses, and collected 289 college students' for item and scale quality analyses. Data were analyzed to obtain item quality, reliability, and validity analysis. The results of this study were as follows; The mentoring-function scale was defined by 4 factors. The 4 factors were 'psycho-soical', 'career-development', 'role-modeling', 'friendship'. Criterion-related validity evidence was obtained from the correlation analysis as the criterion measures.

• Journal of Family Resource Management and Policy Review
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• v.7 no.1
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• pp.23-39
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• 2003

The purpose of this study is to develop the life scale of the middle aged homemakers. The life scale are composed of spouse relation 8 items, child education relation 7 items, home economy relation 4 items, homework relation 3 items, selfish health relation 6 items, parent relation 3 items, and interest and social activity relation 4 items. The reliability coefficient of the development scale was Cronbach'α =.83 and the correlations of each demesne was high. For the better future life in this study, the middle aged homemakers are needed the improvement of conjugal relations, the child education, the health, the interest, and the enlargement of social relations. This life scale can help to evaluate their middle age, and to the planning of energetic healthful future, and useful to understanding characteristic and the developmental task of middle aged homemakers.

• Korean Journal of Human Ecology
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• v.9 no.4
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• pp.405-419
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• 2000

The purpose of this study was to develop a Korean infant-toddler developmental scale and to examine the demographic variables and infant-toddler development. The subjects were 167 mothers who have infant and toddler from 1 to 36 months of age in Seoul, Daejeon, Chungju, Yeasan, and llsan in Korea. The subscales consisted of language development, social and emotional development, physical development, and cognitive development. The significant variables which are influenced the infant-toddler development were age of infant-toddler and age of father.