摘要：

Abstract:

【Purpose/significance】Evaluating the learning outcomes of users under different complexity of learning-related search task

is helpful to provide reference for improving the usability of search system, enhancing users' search experience and evaluating the qual⁃

ity of information service, so as to help users complete knowledge construction and realize knowledge innovation.【Method/process】In

this study, the acquired knowledge, analysis synthesis, knowledge innovation and learning attitude are used as indicators to elevate us⁃

ers' learning outcomes. 31 people are recruited to complete the receptive, critical and creative search tasks at different cognitive levels

in the laboratory. Quantitative analysis was conducted by using questionnaires and self-reports filled out before and after user search,

and proposes a framework of learning outcomes measurement for information search users.【Result/conclusion】There are significant

differences in the three aspects of acquired knowledge, analysis synthesis and knowledge innovation before and after user searching.

The users' acquired knowledge increases, the analytical comprehensive ability and the knowledge innovation ability are enhanced, and

the learning attitude is progressive and positive, becoming self-directed learners.【Innovation/limitation】This paper draws on the re⁃

sults of learning related search and related fields to construct a framework for measuring the learning outcomes of search users, and

clarifies the learning outcomes of different task difficulty. However, the measurement index of learning attitude still needs to be further

expanded and verified to enhance the universality of the conclusion.