득량만 조간대의 퇴적환경

조석희,고영구,윤석태 全南大學校 師範大學 科學敎育硏究所 2002 科學敎育硏究誌 Vol.26 No.1

Considering of depositional environments in Deukryang Bay, total of eighteen gravelly sediments were sampled from the upper intertidal zone in the Bay. The sediments are granule to pebble in mean size, very well to poorly sorted. And, the sediments are nearly symmetrical to fine skewed and plati~ to very lepto~kurtic. However, the sediments are well sorted and nearly symmetrical skewed in whole trend. In addition, interrelationships between each parameter in the sediments are unambiguous except for cases of sorting versus kurtosis and skewness and kurtosis The sediments are mainly composed of quartz and rock fragments. And, feldspars in the sediments are higher relative to another intertidal ones. From the above mentioned results, the bay is maybe assigned to low energy environment influenced by tides and waves.

손해보험회사의 특별계정 의존도와 기업가치

조석희 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.1

본 논문에서는 손해보험회사의 특별계정 의존도가 기업가치와 어떠한 관련성을 가지는지에 대하여 연구하였다. 심태섭 외(2015)에서도 언급하고 있듯이 보험회사의 특별계정은 일반계정과 다른 속성을 가진 계약으로 구성되어 있으므로, 보험회사의 특별계정 의존도에 따라 기업가치가 달라질 가능성이 있다. 이에 본 논문에서는 2011년도부터 2018년도까지 국내 상장 손해보험회사의 분기별 재무제표 자료와 주가자료를 이용하여 특별계정 의존도가 기업가치에 대해 갖는 관계를 분석하였다. 분석결과, 손해보험회사의 특별계정 의존도를 나타내는 변수는 손해보험회사의 기업가치에 대하여 유의적인 음(-)의 관련성을 가지는 것으로 나타났다. 이러한 연구결과는 손해보험회사의 특별계정 의존도가 높고 낮음에 따라 총괄계정 순자산과 순이익이 동일한 상황에서 해당 손해보험회사의 기업가치는 달라질 수 있음을 시사한다고 할 수 있다. 본 연구는 기업가치 극대화 관점에서 특별계정의 운용에 대한 경영적 시사점을 제공함과 아울러 특별계정의 운용성과를 보다 직접적으로 확인할 수 있는 공시제도가 필요할 것임을 시사한다. In this paper, value relevance of the level of dependence on separate accounts in non-life-insurance companies is studied. As noted by Shim et al. (2015), the separate accounts of insurance companies consist of contracts with different attributes from the general accounts, so it is likely that firm value will vary depending on the insurer's dependence on the separate accounts. Thus, in this paper, an empirical analysis has been conducted using quarterly financial data and stock price data from domestic listed non-life-insurance companies from 2011 to 2018. The analysis shows that variables representing the level of dependence on separate accounts have a significant negative relevance to firm value. These results may suggest that changes in the proportion of a non-life-insurer's separate accounts may result in a change to its firm value under the same net assets and net income scales in aggregate accounts. This study provides management implications for the operation of separate accounts from the perspective of maximizing firm value. In addition, this study suggests that disclosure system improvement would be necessary to more directly report the operational performance of the separate accounts.

자녀에 대하여 부모가 갖는 영재성의 개념 및 판별상의 정확도

조석희 한국영재학회 1993 영재교육연구 Vol.2 No.1

Gifted and Talented Education in Korea: Its Problems and Visions

조석희 한국교육개발원 2004 KEDI Journal of Educational Policy Vol.1 No.-

일반학교에서의 영재교육 방법”

조석희 한국영재학회 1996 영재교육연구 Vol.6 No.1

과학영재 판별도구의 개발 및 타당화 연구 : 과학적 사고기능검사를 중심으로

조석희 한국초등교육학회 1990 초등교육연구 Vol.4 No.1

This study aimed to develop and standardize testing instruments to be used for the identification of scientifically gifted students of Grade 5 and 6 in school fields. The instruments will be used as a base for providing appropriate instruction and educational materials for the identified scientifically gifted strudents. I. Theoretical background The scientifically gifted are defined as "those who are, compared to his / her age group, at the upper 85% ile in all and above 98% ile in any one of the following psychological traits : mathematical reasoning and verbal reasoning ability, creativity, and task commitment. In addition, they should show strong interest and positive attitude toward science and scientific activities." Multi-stage identification procedure model was adopted, where indentification proceeds from the first stage of parents and teacher recommendation, to the second stage of group testing with various psychological testing, and to the third stage of individual performance test by professionals. Test developed in this study is a group test to be used at the second stage : Scientific Thinking and Research Skills Test(STRST). The test is developed in such a way that they could function as a norm-referenced test and criterion-referenced test at the same time. II. Procedures used to develop identification instruments Scientific Thinking and Research Skills Test is composed of two subtests : Science process skills test and logical thinking test. Based on the results of reliability and validity estimated through pilot testing, the two subtests were revised and their reliabilities and validities were reestimated from 1988 to 1989. In addition, mean, median, standard deviation, range by grade, and skewness were also examined. For norm interpretation, grade equivalents, and percentile ranks by grade for the gifted and the randomsampled groups were also produced separately. Revised version of two subtests were administered to 278 gifted students who participated in 1988, 240 newly sampled gifted students in G5 and G6, and 4,829 random sampled students in G5 to G9 in 1989. III. Results The revised subtests of science process skills test and logical thinking test have 40 and 21 items respectively. Several major findings observed in the process of analyzing reliabilities and validities of the STRST by norm-referenced and criterion-referenced approaches were as follows : First, internal consistency coefficients for each subtest estimated by Cronbach α and Kuder-Richardson 21 formula ranged from .71 to .78 and .61 to .66 respectively ; Second, generalizability coefficients estimated by norm-reference approach ranged from .71 to .78. By criterion-referenced approach, the estimated generalizability coefficients ranged from .65 to .70 ; Third, test-retest coefficients ranged from .71 to .79 ; Fourth, reliability coefficients calculated by Swaminathan-Hambleton-Algina's method ranged from .47 to .68 ; Fifth, predictive validity, and concurrent validity and inter correlations between the two subtests were estimated. STRST explained 8% to 23% of the variance of academic achievement measured one year after the STRST was first implemented. Concurrent validity estimated by Pearson's correlation with science aptitude test(1985) ranged from 0.06 to 0.26 and another by Novick's P ranged from .59 to .85. Intercorrelations between the two subtests ranged from .38 to .61 and showed that the two subtests are somewhat independent from each other and at the same time measure some common traits. IV. Conclusion and suggestions for use Most of the reliability and validity coefficients were evaluated to be high enough for the test to be used for identifying scientifically gifted students in Grade 5 and Grade 6. Considering the homogeneity of the students participated in the study, the validity and reliability are high enough to be utilized in the process of identifying scientifically gifted students. For better usage, STRST should be used first for students who are already recommended by teachers and the top 50% among them should be screened on the basis of the testing results. After then, the project type problem solving test should be used at the final stage to identify those who would be placed into the special education program.

Preference for Challenging Tasks: The Critical Factor on Late Academic Achievement and Creative Problem Solving Ability

조석희,안도희,한석실 한국교육개발원 2005 KEDI Journal of Educational Policy Vol.2 No.2

Purpose of this study was to find out factors which may affect later academic achievements and creative problem solving ability. Two studies were carried out: One is to find out critical factors on later achievement among their intellectual and affective characteristics and family processes during their childhood; The other is to find out critical factor on creative problem solving among several affective characteristics. The first study was conducted with 60 young adults identified as prodigies at the age of 3-5 and 56 of their parents. Stepwise regression analyses were carried out with academic achievement, IQ, self-concept, achievement motivation, belief in their intellectual abilities, general self-efficacy and family processes. It was found that the preference for challenging tasks was the only factor highly correlated with academic achievement. The second study was conducted with 232 upper elementary school students and 77 gifted upper elementary school students. The study was to verify the path model among creative problem solving ability, motivation, beliefs about intellectual abilities, and preference for creative problem solving and challenging tasks. It was found that the intrinsic motivation, preference for creative problem solving and for challenging tasks directly affect the creative problem solving ability. It was also found that incremental beliefs about intellectual ability indirectly affect the creative problem solving ability through preference for creative problem solving, and intrinsic motivation. The results imply that providing children with positive experiences of working with challenging tasks are necessary to have children to achieve higher in their later years and to be creative in problem solving.

우리 나라의 영재 교육

조석희 대한사립학교장회(구 대한사립중고등학교장회) 1997 私學 Vol.79 No.-

Effects of the enrichment program for the economically disadvantaged gifted on their aspirations and satisfaction with the program

조석희,이미순 한국교육개발원 2006 KEDI Journal of Educational Policy Vol.3 No.2

Enrichment program developed by KEDI has been provided to the gifted, economically disadvantaged gifted, and non-gifted grade 4 and 7 students for 3 months. The aspiration level of the economically disadvantaged gifted has been enhanced after 3 months of implementation. The gifted and the economically disadvantaged gifted in Grade 4 were more satisfied and benefited more from the enrichment program than those in Grade 7 were. The results show that the earlier intervention programs were provided, the more positive the effects of the intervention program were. It seems necessary to identify the gifted and economically disadvantaged gifted as early as possible in order to maximize the program effects for enhancing their aspiration and benefits from the program.

획일교육의 허점과 영재교육

조석희 한국지역사회연구소 2001 지역사회 Vol.38 No.-