Introduction to Volume 5, Issue 1

Welcome to the first issue of volume 5 of JUS! This issue marks the beginning of the fifth year since JUS was founded. Many in the usability discipline agree that we need to evolve into a more scientific discipline rather than anecdote-based. Susan Dray, in her invited editorial:” Engaged Scholars, Thoughtful Practitioners: The Interdependence of […] [Read More]

Engaged Scholars, Thoughtful Practitioners: The Interdependence of Academics and Practitioners in User-Centered Design and Usability

Introduction Our field faces threats to its legitimacy that we will have trouble dealing with if we continue to allow a split between academia and practice. Many academics face obstacles in the way of more “relevant” research that would be more meaningful to practitioners, and practitioners tend to see academic research as not relevant to […] [Read More]

When Links Change: How Additions and Deletions of Single Navigation Links Affect User Performance

Abstract This study examined user performance for Web sites in which a critical navigation link may have changed over the course of two visits. These second visits occurred either immediately after the first visit, one week later, or three weeks later. A shortcut link to the information was either consistently present, consistently absent, or varied […] [Read More]

The Combined Walkthrough: Measuring Behavioral, Affective, and Cognitive Information in Usability Testing

Abstract This paper describes an experiment in studying users’ behavior, emotions, and cognitive processes in single usability testing sessions using an experimental method called the combined walkthrough. The users’ behavior was studied using task times and completion rates, and emotions were studied using bipolar scales for experienced valence and arousal. Cognition was studied after each […] [Read More]

How To Specify the Participant Group Size for Usability Studies: A Practitioner’s Guide

Abstract Using secondary literature, this article helps practitioners to specify the participant group size for a usability study. It is also designed to help practitioners understand and articulate the basis, risks, and implications associated with any specification. It is designed to be accessible to the typical practitioner and covers those study scenarios that are common […] [Read More]