• 말소리와 음성과학
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• 제8권3호
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• pp.79-90
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• 2016

The purpose of this study was to investigate the effects of stuttering severity on articulation rate measured from different types of utterances in preschool children who stutter. Participants were 40 boys who stutter (CWS) and age-matched 10 boys who do not stutter (CWNS). CWS were sub-grouped based on the severity of their stuttering: 15 mild, 13 moderate, and 12 severe. Utterances were categorized as "overall utterance" including all utterances that children spoke and "fluent utterance" which did not contain any disfluencies. Utterances containing abnormal disfluencies were categorized as "SLD utterance" for CWS. The results revealed no significant difference among groups in any type of utterance. There were significant positive correlations in articulation rates between utterance types. Stuttering severity was not a factor for characterizing the articulation rate of each type of utterance. Also, current findings suggest that articulation rate may not predict speech motor control ability in preschool CWS.

• 아동학회지
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• 제22권2호
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• pp.149-166
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• 2001

This study examined the effects of parenting behaviors, marital conflict and sibling relations on aggression with a sample of 301 6th graders (161 boys and 140 girls) living in P city. The subjects answered questionnaires regarding parenting behaviors, including sub-scales of physical punishment and psychological control, marital conflict, and sibling relations. Aggression was rated by peers. The results indicated that boys showed higher overt aggression than girls; children were aggressive when parents frequently used physical punishment and psychological control; the more children were exposed to marital conflict, the more aggressive they were, with particularly high correlations for girls; and the less positive and the more negative the sibling relations, the higher the aggression shown by children. Among the variables, parent's behaviors were the most highly correlated with aggression in both boys and girls.

• 아동학회지
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• 제28권5호
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• pp.143-159
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• 2007

This study examined the relation between the quality of constructive play and convergent and divergent problem solving. The subjects were 48 five-year-old children. Unit blocks were used to test the quality level of constructive play; a 40 piece puzzle and pattern blocks were used to test convergent problem solving; the pattern blocks also were used to test divergent problem solving. Children's block play was videotaped and pictures were taken of constructions made by children. Data were analyzed by correlation and stepwise multiple regression. Results showed statistically significant correlations between the quality of constructive play and convergent and divergent problem solving. Among the sub variables of constructive play, social play patterns affected convergent problem solving; diversity affected divergent problem solving.

• Asian-Australasian Journal of Animal Sciences
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• 제12권6호
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• pp.846-849
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• 1999

Angus postweaning daily gain (PWDG) were analyzed to investigate heterogeneous variance by sex. A set of data (16,239 records) was divided into six sub-data sets according to level of environment. REML estimation was conducted by a multitrait model, where PWDG in each sex was treated as a separate trait. Estimates showed diversity among environmental levels, where the heritability for heifers was high in good environment but low in poor environment. The bull's estimates varied among environmental levels. The largest heterogeneity of phenotypic variance between sexes was estimated in a data set of the poor environment level. The genetic correlations between the heifer's PWDG and the bull's PWDG were high in the good environment and low in the poor environment (-0.17). The results suggest existence of genotype by sex interaction in the poor environment.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2005년도 학술발표논문집
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• pp.278-283
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• 2005

In this study, following works have been carried out : division of Nakdong River Basin into 25 sub basins, development of a technique to evaluate spatial distribution of rainfall and analysis of rainfall data of 169 stations, selection of control points, and selection of a hydrologic model(SSARR). Analysis results were found that total volume of discharges at every control points have errors in a reasonable range, and the correlations between observed and calculated daily runoff discharges at every control points were well coincided.

• 아동학회지
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• 제26권1호
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• pp.217-228
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• 2005

The present study explored relationships between self-esteem, general self-efficacy and creative personality. The responses of 113 university students on self-esteem, general self-efficacy, and creative personality scales were collected and analyzed by Cronbach a tests, Pearson correlations and multiple regression analysis. The results showed that, first, there were significant positive relationships between self-esteem, general self-efficacy and creative personality. Second, the effects of self-esteem on creative personality were mediated by general self-efficacy. Finally, multiple regression analysis demonstrated that self-regulation and self-confidence among the sub-factors of general self-efficacy were good predictors of the creative personality. From these results we conclude that it is important to improve general self-efficacy in order to develop creative personality.

• 아동학회지
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• 제18권1호
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• pp.163-175
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• 1997

This study examined sex and grade difference in perceived peer relations and the relationship between children's social competence and perceived peer relations. The subjects were 365 children and their mothers. Instruments were the Children's Social Competence Questionnaire (Lee, 1993) and the modified version the of Social Network of Relationships Inventory (Han, 1996). Data were analysed by F-test, Pearson's correlations, and multiple regression analysis. Perceived peer relations differed by sex and grade in some sub-domains. The social support, intimacy, and companionship of perceived peer relations were positively associated with social competence. The social support of perceived peer relations was the most influential factor affecting children's social competence.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.465-470
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• 2007

In order to investigate the stochastic behavior of Mindlin plate under imperfection in the material and geometrical parameters, a stochastic finite element formulation is proposed. The effects of inter-correlations between random parameters on the response variability are also observed. The contribution from the random Poisson ratio is taken into account adopting a stochastic decomposition scheme. which expands the constitutive matrix into an infinite series of sub-matrices. In order to demonstrate the adequacy of the proposed scheme, a square plate with simple and fixed support is taken as an example, and the results are compared with those given in previous research in the literature as well as with the results of Monte Carlo analysis.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1997년도 추계학술발표회논문집(1)
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• pp.522-527
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• 1997

A total of 386 critical flow data points from 19 runs of 27 runs in the Marviken Test were selected and compared with the predictions by the correlations based on the critical flow scaling parameters. The results show that the critical mass flux in the very large diameter pipe can be also characterized by two scaling parameters such as discharge coefficient and dimensionless subcooling( $C_{d, ref}$ and $\Delta$ $T^{*}$$_{sub}$). The agreement between the measured data and the predictions are excellent.t.ons are excellent.t.

• 말소리와 음성과학
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• 제9권2호
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• pp.53-59
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• 2017

The present study examined if individual listeners' perceptual variations were associated with their cognitive characteristics indexed by the Autistic Spectrum Quotient (AQ). This study first investigated the perception of the lexical pitch accent contrast in the Kyungsang Korean currently undergoing a sound change, and then tested if listeners' perceptual variations were correlated with their AQ scores. Eighteen Kyungsang listeners in their 20s participated in the perception experiment where they identified two contrastive accent words for auditory stimuli systematically varying F0 scaling and timing properties; the participants then completed the AQ questionnaire. In the results, the acoustic parameters reporting reduced phonetic differences across accent contrasts for younger Kyungsang generation played a reliable role in perceiving the HH word from HL, suggesting the discrepancy between the perception and the production in the context of sound change. This study also observed that individuals' perceptual variations were negatively correlated with their AQ sub scores. The present findings suggested that the sound change might appear differently between production and perception with a different time course, and deviant percepts could be explained by individuals' cognitive measure.