본 연구는 왜 이용자들이 정보탐색에 많은 노력을 기울이지 않는가를 알아보기 위하여 교육심리학분야에서 개발된 정신적 노력에 관한 개념을 웹 검색엔진과 도서관시스템 정보탐색행위에 적용하여 보았다. 실험실 환경에서 학부학생 총 15명을 대상으로 탐색실험을 실시하여, 탐색전 설문조사, 탐색후 설문조사, 탐색후 인터뷰, 생각 소리내어 말하기 (think-aloud), 로그데이터를 통하여 데이터를 수집하였다. 연구결과, 이용자들은 웹 검색엔진을 도서관시스템에 비하여 휠씬 쉽다고 인지하며 스스로 탐색에 대한 높은 자신감을 가지고 있었다. 이러한 이용자성향은 이용자들이 웹 탐색에 도서관탐색때보다 더 적은 노력을 기울이는 것과 깊은 연관성을 가지고 있는 것으로 나타났다. 이용자들의 정신적 노력에 관한 개념은 결과적으로 이용자들의 정보탐색 행위와 경험을 설명하는데 매우 유용한 것으로 밝혀졌다.
The purpose of this study was to explore whether the concept of amount of invested mental effort (AIME) developed in the field of educational psychology can help explain why people put so little effort into online searching. In this experimental study, two information retrieval systems a web search engine and a university library system were used to make a comparison. The data were collected from 15 undergraduate students through background questionnaires, think-aloud protocols, search logs, post-search questionnaires, and post-task interviews. The findings indicate that perception of the webs easy-ness and high levels of self confidence in searching capability led the subjects to put less effort into web searching than they do into library system searching. In addition, the perceived difficulty of search task influenced the extent of mental effort invested. The AIME proved a useful framework for understanding search behavior and user experience for both web search engines and library systems.
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