Reviewing and extending the five-user assumption: A grounded procedure for interaction evaluation

" © ACM, 2013. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in ACM Transactions on Computer-Human Interaction (TOCHI), {VOL 20, ISS 5, (November 2013)} http://doi.acm.org/10.1145/2506210 "The debate concerning how many participants represents a sufficient number for interaction testing is well-established and long-running, with prominent contributions arguing that five users provide a good benchmark when seeking to discover interaction problems. We argue that adoption of five users in this context is often done with little understanding of the basis for, or implications of, the decision. We present an analysis of relevant research to clarify the meaning of the five-user assumption and to examine the way in which the original research that suggested it has been applied. This includes its blind adoption and application in some studies, and complaints about its inadequacies in others. We argue that the five-user assumption is often misunderstood, not only in the field of Human-Computer Interaction, but also in fields such as medical device design, or in business and information applications. The analysis that we present allows us to define a systematic approach for monitoring the sample discovery likelihood, in formative and summative evaluations, and for gathering information in order to make critical decisions during the interaction testing, while respecting the aim of the evaluation and allotted budget. This approach – which we call the ‘Grounded Procedure’ – is introduced and its value argued.The MATCH programme (EPSRC Grants: EP/F063822/1 EP/G012393/1

The Electronic Health Record Scorecard: A Measure of Utilization and Communication Skills

As the adoption rate of electronic health records (EHRs) in the United States continues to grow, both providers and patients will need to adapt to the reality of a third actor being present during the visit encounter. The purpose of this project is to provide insight on “best” practice patterns for effective communication and efficient use of the EHR in the clinical practice setting. Through the development of a comprehensive scorecard, this project assessed current status of EHR use and communication skills among health care providers in various clinical practice settings. Anticipated benefits of this project are increased comfortability in interfacing with the EHR and increased satisfaction on the part of the provider as well as the patient. Serving as a benchmark, this assessment has the potential to help guide future health information technology development, training, and education for both students and health care providers

Helpful factors and outcomes in person-centered therapy with clients who experience psychotic processes: therapists' perspectives

This qualitative study explores person-centered practitioners' perceptions of what is helpful in their work with clients who experience psychotic processes and the impact that they believe this practice has on their clients. In-depth interviews with twenty British person-centered practitioners focused on how they worked with clients who experienced psychotic process, what they perceived as helpful, and how they believed these practices helped their clients. Analyses used a grounded theory approach. In addition to standard person-centered therapy, practices with this client group often incorporated pre-therapy and other elements acquired through advanced training. Emerging themes in perceived useful practice included "getting beyond labels and illness" and "working with particular care and attention." Results suggest the importance of specific therapeutic conditions, especially unconditional positive regard. The perceived therapeutic change most often described was increased social adjustment. Some clients were also perceived by therapists as showing lessened risk of harm to self or others and improvement in self awareness, mood, resilience and other areas

User-centered visual analysis using a hybrid reasoning architecture for intensive care units

One problem pertaining to Intensive Care Unit information systems is that, in some cases, a very dense display of data can result. To ensure the overview and readability of the increasing volumes of data, some special features are required (e.g., data prioritization, clustering, and selection mechanisms) with the application of analytical methods (e.g., temporal data abstraction, principal component analysis, and detection of events). This paper addresses the problem of improving the integration of the visual and analytical methods applied to medical monitoring systems. We present a knowledge- and machine learning-based approach to support the knowledge discovery process with appropriate analytical and visual methods. Its potential benefit to the development of user interfaces for intelligent monitors that can assist with the detection and explanation of new, potentially threatening medical events. The proposed hybrid reasoning architecture provides an interactive graphical user interface to adjust the parameters of the analytical methods based on the users' task at hand. The action sequences performed on the graphical user interface by the user are consolidated in a dynamic knowledge base with specific hybrid reasoning that integrates symbolic and connectionist approaches. These sequences of expert knowledge acquisition can be very efficient for making easier knowledge emergence during a similar experience and positively impact the monitoring of critical situations. The provided graphical user interface incorporating a user-centered visual analysis is exploited to facilitate the natural and effective representation of clinical information for patient care

Healing conversations: Developing a practical framework for clinical communication between Aboriginal communities and healthcare practitioners

In recognition of the ongoing health disparities experienced by Aboriginal and Torres Strait Islander peoples (hereafter Aboriginal), this scoping review explores the role and impact of the clinical communication process on Aboriginal healthcare provision. A medical education lens is applied, looking at the utility of a tailored clinical communication framework to assist health practitioners work more effectively with Aboriginal peoples and communities. The initial framework, building on existing communication guides, proposes four domains: content, process, relational and environmental. It places emphasis on critical self-reflection of the health practitioner’s own cultural identity and will be guided by collective Aboriginal world-views in select Australian settings. Using a two-eyed seeing approach the framework will be developed and tested in health professional education. The aim of this research journey is to enable health practitioners to have more effective healthcare conversations with Aboriginal peoples, working toward more socially just and equitable healthcare interactions and outcome

Enterprise Experience into the Integration of Human-Centered Design and Kanban

he integration of Human-Centered Design (HCD) and Agile Software Development (ASD) promises the development of competitive products comprising a good User Experience (UX). This study has investigated the integration of HCD and Kanban with the aim to gain industrial experiences in a real world context. A case study showed that requirements flow into the development process in a structured manner by adding a design board. To this end, the transparency concerning recurring requirements increased. We contribute to the body of knowledge of software development by providing practical insights into Human-Centered Agile Development (HCAD). On one hand, it is shown that the integration of HCD and Kanban leads to a product with a good UX and makes the development process more human-centered. On the other hand, we conclude that a cross-functional collaboration speeds up product development.Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2015-71938-RED

Development of a Randomised Controlled Trial of Counselling for Depression

Many members of the UK counselling community feel that their profession and practice is under threat, particularly within NHS settings. This can be attributed, primarily, to the near-complete absence of recommendations for counselling in clinical guidelines, as a consequence of the relative lack of randomised controlled trial (RCT) evidence in support of this therapy. Expert opinion suggests that this need for RCT evidence is likely to continue for the foreseeable future. In recent years, BACP has led the development of Counselling for Depression (CfD), a systematic, person-centred experiential treatment for depression, based on evidenced humanistic competences. The development of this intervention and its roll out into some Improving Access to Psychological Therapies (IAPT) services gives the counselling community one of its best opportunities, yet, to develop a body of RCT evidence in support of counselling. Expert opinion leans towards two specific strategies for trialling CfD: first, a relatively short-term comparison of CfD against waiting list in IAPT settings; second, a more extended trial comparing the effectiveness of CfD against CBT. It is recommended that BACP set up a CfD RCT Task Force to take forward these projects, possibly through the development of pilot trials; and to look at ways of developing a more RCT-friendly culture within the counselling community