視障學生行動觸控設備使用態度影響模式探究：以知覺有用性、知覺易用性為中介變項

Study on Attitude toward Mobile Devices in Students with Visual Impairments: Perceived Usefulness and Perceived Ease of Use as Mediating Variables

10.6251/BEP.201809_50(1).0005

李昕寧(Hsing-Ning Lee)；鄭永福(Yung-Fu Cheng)；張千惠(Chien-Huey Sophie Chang)；吳榮根(Jung-Gen Wu)

行動觸控設備 ； 知覺有用性 ； 知覺易用性 ； 視障學生 ； 態度 ； Mobile device ； Perceived usefulness ； Perceived ease of use ； Students with visual impairments

教育心理學報

50卷1期（2018 / 09 / 01）

107 - 129

繁體中文

本研究旨在探究視覺障礙學生對行動觸控設備使用態度的影響模式，了解社會支持、擁有資源及使用能力對態度的認知、情感及行為意向三個成分之影響力，並探討知覺有用性、知覺易用性的中介效果。本研究以國中以上曾使用過行動觸控設備之視障學生144人為對象，採用項目分析及驗證性因素分析驗證各變項量表之品質及信、效度，再以結構方程模式進行資料分析與模式驗證。研究發現，社會支持對知覺有用性及知覺易用性均有正向影響力，進而影響對行動觸控設備的態度。擁有資源對知覺易用性有直接影響效果，並藉由使用能力對知覺易用性產生間接影響，再進一步影響使用態度。知覺易用性對於態度的認知、情感及行為意向三個面向均有正向影響力，而知覺有用性則僅對認知及行為意向有顯著影響，對情感面向之影響則未達顯著水準。依上述結果，本研究對如何促進視覺障礙學生行動觸控設備使用態度提出具體建議。

The purpose of this study was to explore the effect of various factors on the attitude toward mobile device of students with visual impairments (VI) in Taiwan. This study also explored the mediating effect of perceived usefulness (PU) and perceived ease of use (PEOU) and verified the structural model of social support, resource possession, and abilities and attitudes regarding the use of mobile devices. We redesigned the attitude scale in accordance with the suggestions of other studies to comprise three sections: cognition, affect, and conation. We investigated 144 students with VI above junior high school who had ever used mobile devices. Reliability and validity were examined using item analysis and confirmatory factor analysis. The results revealed that social support had a positive effect on PU and PEOU and an indirect effect on attitude toward mobile devices, mediated by PU and PEOU. Possession of resources and knowledge had a positive effect on PEOU and an indirect effect on PEOU, mediated by abilities for mobile device use, and consequently exhibited a relationship with attitude. PEOU had a positive effect on cognition, affect, and conation. Nevertheless, PU exhibited a significant relationship only with cognition and conation. Therefore, the findings of this study provide some suggestions for improving the attitude of VI students toward mobile devices. First, the researchers suggest the perceived ease of use (PEOU) be considered primarily when developing mobile devices, digital tools or applications, in order to accommodate the needs of users with visual impairments and to motivate their acceptance of those digital equipments. Secondly, family members, teachers, relatives and friends can provide more social support to encourage frequent use of digital mobile devices in people with visual impairments. Finally, the researchers will strongly recommend the government to provide sufficient mobile devices with related trainings for applying these devices, which will definitely help promote their attitude toward mobile devices.

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