• Journal of Information Technology Applications and Management
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• 제14권1호
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• pp.21-36
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• 2007

We face with numerous situation of decision making. In this situation, we would make decision through individual's own information, or others' decision making with ignoring private information, Also we would make decision through compromise of private information and others' information. like this, we call situation to imitate information of previous decision maker, with disregarding private own information,'information cascades' Also, anchoring effects are results of insufficient adjustment from an arbitrary value. In this paper, we examined how information cascades effects and anchoring effects would be generated in the people who use IT technique as instant poll of website. And this paper presents alternatives to decrease information cascades effects and anchoring effects. This exercise provides facts anchoring effects occur when voters can see poll result. And this paper shows that more degree of output difference is deepened, and more anchoring effects occur. Also this paper shows that when website gives positive payoff, more anchoring effects occur.

• 한국심리학회지:법
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• 제11권3호
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• pp.329-347
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• 2020

사람들은 불확실한 상황에서 판단을 내릴 때 외부에서 주어진 정보의 영향을 받아 그 정보의 근사치로 판단을 내리는 경향이 있으며 이를 정박효과(anchoring effect)라고 한다. 본 연구에서는 배심원들이 사법적 의사결정을 내릴 때 나타나는 정박효과를 연구 문제로 설정하였다. 사법적 의사결정 상황에서는 검사구형량이 정박점으로 작용하여 최종 판결되는 양형이 검사구형량과 유사해지는 현상이 나타난다. 본 연구는 배심원 자격이 있는 만 20세 이상의 대학생들을 대상으로 진행되었다. 연구 1에서는 범죄사건의 경중과 정박크기에 따른 정박효과의 차이를 검증하였다. 그 결과 중범죄사건에서 경범죄사건에 비해 정박효과가 더 강하게 나타났다. 또한 경범죄사건의 저정박 조건에서 고정박 조건에 비해 정박효과가 더 강하게 나타났다. 연구 2에서는 정서상태에 따라 정박효과가 달라짐을 검증하였다. 그 결과 분노정서를 느낄 때 슬픔정서를 느낄 때보다 정박효과가 강하게 나타났다. 마지막으로 정박효과를 약화시키는 방안에 대한 연구 3에서는, 정박효과의 접근가능성 모델이 활성화되는 것을 방지할 때 정박효과가 유의미하게 감소하는 것으로 나타났다. 본 연구의 결과들은 배심원의 사법적 의사결정과정에서 나타나는 정박효과와 관련된 문제들을 파악하고 해결하는 데 기여할 수 있을 것이다.

• Safety and Health at Work
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• 제15권3호
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• pp.300-309
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• 2024

Background: Risk perception plays a crucial role in workers' unsafe behaviors. However, little research has explored why workers generate biased risk perceptions, namely underestimating or overestimating the risks of unsafe actions. Cognitive biases in risk perception arise from uncertainties about the dangers of unsafe behaviors. As a typical heuristic strategy, the anchoring effect is critical in decision-making under uncertain conditions. Consequently, this study empirically analyzed the influence of anchoring effects on workers' risk perception. Methods: In 2022, a survey was conducted with 1,418 coal mine workers from Shanxi Province, China. The survey instruments assessed workers' risk perception of unsafe behavior, anchoring effects, need for cognition, and safety knowledge. Multivariable linear regression models were employed to analyze the associations among these variables. Results: The findings verified the proposed anchoring effects. Specifically, experimenter-provided high-risk anchors led workers to overestimate unsafe behavior risks, thus reducing their tendency to engage in such behavior. In contrast, experimenter-provided low-risk anchors and accident-injury experiences (self-generated anchors) decreased workers' risk perception, increasing their propensity to engage in unsafe behavior. Additionally, workers' safety knowledge and need for cognition significantly affected anchoring effects. Conclusion: This research enhances workplace safety studies by applying the anchoring effect from psychology to risk perception research. Suggestions for improving risk perception encompass implementing hazard warnings, fostering safety education, and providing training. Furthermore, managers should give special attention to workers with accident-injury experience and promptly correct their accident fluke mentality, thereby improving overall risk awareness.

• 한국콘텐츠학회논문지
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• 제18권4호
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• pp.77-88
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• 2018

본 연구는 향수광고의 의미고정 수준(저/고/비)에 따른 효과와 그리고 향수에 대한 친숙성(비 친숙/친숙)과 제품유형(감성적/이성적)에 따라 소비자의 반응에 미치는 영향에 대한 어떠한 조절역할을 갖는지를 알아보고자 대학생 219명 대상으로 실험연구를 실시하였다. 그 결과 의미고정 수준에 따른 주 효과는 향수의 유무와 관계없이 의미고정의 수준이 높을수록 광고에 대한 선호도나 구매의도에 대해 더욱 호의적으로 형성하였다. 다음으로 향수광고의 의미고정 수준에 대한 조절효과는 향수의 친숙성과 제품유형 모두 구매의도와 광고 선호도에 모두 차이가 있는 것으로 나타났다. 광고 선호도의 경우 의미고정 수준이 낮은 경우 친 숙집단과 비 친숙집단의 차이는 크지 않았으나, 구매의도의 경우에는 의미고정의 수준이 낮은 경우와 의미고정의 수준이 없을 경우 두 집단 간의 차이는 더욱 큰 것으로 나타났다.

• 한국전기전자재료학회논문지
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• 제12권1호
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• pp.69-74
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• 1999

We have investigated that the high pretilt angle of the NLC, 4-n-pentyl-4-cyanobiphenyl (5CB), was observed on rubbed polythiophene (PTP) surfaces with alkyl chains with more than 10 carbon atoms; it is attributed to the surface-excluded volume effect by the alkyl chain lengths between the LCs and the PTP surfaces. Next, we investigated that the odd-even effect of the polar anchoring strength in 5CB on rubbed PTP surfaces with alkyl chain lengths has been successfully evaluated. The anchoring strength of 5CB for rubbed PTP surfaces with odd-number is weak compared with even-number up to the 6 carbon atoms in the alkyl chain; however, odd-number is strong compared with even-number above 7 carbon atoms. The weak anchoring strength of 5CB is approximately $1\times10^{-3} (J/m^2$) on rubbed PTP surface with 7 carbon atoms; it is relatively strong anchoring strength. Consequently, we conclude that the odd-even effects of the polar anchoring strength in NLCs are strongly related to the characteristics of the polymer and observed clearly for short alkyl chain lengths.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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• pp.515-518
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• 2005

In this paper, we report on our theoretical study on the effect of surface anchoring. Molecular dynamics as well as optical characteristics of PVA cell are computer-simulated with 3D-FEM numerical solver, TechWiz $LCD^{(R)}$. Although simulation parameters are the same except for the consideration of surface anchoring, the simulation reveals that optical transmittance is improved by more than 8% for the weak anchoring case with comparison to the strong anchoring case. Moreover, capacitance between pixel and common electrode is 7% lower for the strong anchoring than that for the weak anchoring. This implies that there exists an appreciable difference between the strong anchoring case and the weak anchoring case. It is very important to take the effect of surface anchoring into account in order to figure out the optical characteristics of an LCD cell more accurately.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 C
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• pp.1453-1455
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• 1996

The odd-even effect of the alkyl chain length of rubbed polyimide Langmuir-Blodgett (LB) surfaces on the extrapolation length of 5CB has been successfully evaluated for the first time by measuring polar anchoring strength. The extrapolation length of 5CB for rubbed PI-LB surfaces with even-numbers is small compared with odd-numbers for alkyl chain lengths of greater than 7 carbons. The extrapolation length of 5CB on rubbed PI-LB surfaces with odd-numbers increases gradually as the temperature increases but tends to diverge near the clearing temperature (Tc=$35.3^{\circ}C$). The extrapolation length diverges because of rapidly decreasing surface order near $T_c$. We suggest that the polar anchoring strength on rubbed PI-LB surfaces with even-number is strong because of relatively high surface ordering caused by more crystalline surfaces. Finally, we conclude that the odd-even effects of the polar anchoring strength in NLCs are strongly related to the character of the polymer and observed clearly for long alkyl chain lengths.

• 인지과학
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• 제33권1호
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• pp.77-93
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• 2022

선행 연구들에서는 그럴듯한 기준점이 극단적 기준점보다 더 큰 기준점 효과를 야기하는 반면, 주어진 문항과 관련된 개인의 지식수준이 높으면 기준점 효과가 작아진다고 보고하고 있다. 하지만 제시되는 기준점이 그럴듯한지 여부와 주어진 문항 자체의 난이도가 기준점 효과에 미치는 영향을 함께 살펴본 연구는 없었다. 따라서 본 연구에서는 기준점의 극단성과 문항의 난이도가 기준점 효과에 미치는 영향을 살펴보았으며, 이에 더해 응답 확신도와 기준점 효과의 관계도 살펴보았다. 이를 위하여 예비 연구를 통해 쉬운 문항과 어려운 문항, 그럴듯한 기준점과 극단적인 기준점을 선정하였다. 본 실험은 '표준 기준점 실험 절차' 에 따라 진행되었다. 연구 결과, 기준점의 극단성과 문항의 난이도는 각각 기준점 효과에 영향을 미쳤으며 문항의 난이도는 응답 확신도에도 또한 영향을 미쳤다. 구체적으로, 그럴듯한 기준점을 제시했을 때와 어려운 문항을 제시했을 때에 기준점 효과가 크게 나타났다. 또한 자신의 수행에 대한 확신이 낮을수록 극단적인 기준점이 제시되었을 때 기준점의 영향을 크게 받았다. 이러한 결과는 기준점이 그럴듯한지와 문항의 난이도에 따라 기준점 효과의 크기와 확신 정도, 그리고 기준점 효과와 확신도 사이의 상관관계가 다르게 나타난다는 것을 보여준다. 본 연구의 결과는 기준점의 특성이나 개인의 상태에 따라 기준점 효과가 달라진다고 제안하는 기준점 효과에 관한 태도 변화 관점을 뒷받침한다.

• 한국전기전자재료학회논문지
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• 제11권12호
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• pp.1128-1132
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• 1998

We have investigated the relationship between the polar anchoring energy and the surface order parameter in nematic liquid crystal (NLC), 4-n-pentyl-4-cyanobiphenyl (5CB), on the two kinds of the weakly rubbed polyimide (PI) surfaces. The observed polar anchoring energy of 5CB is approximately 2${\times}10^{-4}(J/m^2$) and then increases with increasing the rubbing strength (RS) on weakly rubbed surface (RS=57mm) with side chain at $30^{\circ}C$; same results are obtained on weakly rubbed PI surface without side chain. The surface order parameter of 5CB on rubbed PI surfaces increases with increasing the RS at a weak rubbing region. The surface order parameter of 5CB is strongly related to the characteristics of PI material. Consequently, we suggest that the polar anchoring energy of NLC is strongly attributed to the surface order parameter on rubbed PI surfaces.

• Geomechanics and Engineering
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• 제19권6호
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• pp.485-498
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• 2019

Pre-tensioned rock bolts can be classified into fully anchored, lengthening anchored and point anchored bolts based on the bond length of the resin or cement mortar inside the borehole. Bolts in varying anchoring methods may significantly affect the supporting effect of surrounding rock around a tunnel. However, thus far, the theoretical basis of selecting a proper anchoring method has not been thoroughly investigated. Based on this problem, 16 schemes were designed while incorporating the effects of anchoring length, pretension, bolt length, and spacing, and a systematic numerical experiment was performed in this paper. The distribution characteristics of the stress field in the surrounding rock, which corresponded to various anchoring scenarios, were obtained. Furthermore, an analytical approach for computing the active and passive strengthening index of the anchored surrounding rock is presented. A new fully anchoring method with pretension and matching technology are also provided. Then, an isolated loading model of the anchored surrounding rock was constructed. The physical simulation test for the bearing capacity of the model was performed with three schemes. Finally, the strengthening mechanism of varying anchoring methods was validated. The research findings in this paper may provide theoretical guidelines for the design and construction of bolting support in tunnels.