ABSTRACT

Effective teaching of concepts related to human computer interaction (HCI) requires introduction of the core paradigms as well as the design and evaluation methodologies to the learners. In this paper, we investigate the learning effectiveness of a tool-mediated learning activity to support instruction of established human performance models, namely the Keystroke Level Model (KLM) and Fitts’ law, and their application in web form design practice. The tool, named Keystroke Level Model Form Analyser (KLM-FA), supports learning through exploration by providing step-by-step tracing of the KLM modelling for any web form filling task. KLM-FA can be used in modelling exercises of either online or offline web forms according to different interaction strategies or users’ characteristics. Three pretest-posttest studies involving 52 students in total enrolled in computer science curricula with different education delivery methods (campus-based, blended learning, distance learning) and levels (undergraduate, postgraduate) provide evidence for the effectiveness of the proposed learning activity. In all three studies, it was found that the KLM-FA activity had a significant positive effect on students’ learning gain. In addition, students rated their perceived educational experience and KLM-FA usability as rather high. Content analysis of students’ comments also found that KLM-FA is an educationally valuable and usable tool.

摘要

与人机交互 (HCI) 相关的概念的有效教学需要向学习者介绍核心范式以及设计和评估方法。在本文中，我们研究了工具介导的学习活动的学习效果，以支持已建立的人类表现模型的教学，即击键水平模型 (KLM) 和菲茨定律，以及它们在 Web 表单设计实践中的应用。该工具名为 Keystroke Level Model Form Analyzer (KLM-FA)，通过为任何 Web 表单填写任务提供 KLM 建模的逐步跟踪来支持通过探索学习。KLM-FA 可以根据不同的交互策略或用户特征用于在线或离线 Web 表单的建模练习。三项前后测研究共涉及 52 名计算机科学课程的学生，他们采用不同的教育方式（基于校园、混合学习、远程学习）和水平（本科生、研究生），为所提议的学习活动的有效性提供了证据。在所有三项研究中，都发现 KLM-FA 活动对学生的学习收获有显着的积极影响。此外，学生认为他们的教育体验和 KLM-FA 可用性相当高。对学生评论的内容分析还发现，KLM-FA 是一种具有教育价值和实用性的工具。研究生）为所提议的学习活动的有效性提供证据。在所有三项研究中，都发现 KLM-FA 活动对学生的学习收获有显着的积极影响。此外，学生认为他们的教育体验和 KLM-FA 可用性相当高。对学生评论的内容分析还发现，KLM-FA 是一种具有教育价值和实用性的工具。研究生）为所提议的学习活动的有效性提供证据。在所有三项研究中，都发现 KLM-FA 活动对学生的学习收获有显着的积极影响。此外，学生认为他们的教育体验和 KLM-FA 可用性相当高。对学生评论的内容分析还发现，KLM-FA 是一种具有教育价值和实用性的工具。