IBM computer usability satisfaction questionnaires: Psychometric evaluation and instructions for use

Lewis, James R.

doi:10.1080/10447319509526110

Cited by 1,905 publications

(1,311 citation statements)

References 12 publications

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“…The formative online evaluation included a usability questionnaire [22] basing on Lewis [23] work: "IBM Computer Usability Satisfaction Questionnaires: Psychometric Evaluation and Instructions for Use." The questionnaire consisted of nineteen statements, to be marked between 1 (strongly disagree) and 6 (strongly agree) and has been completed by fifteen participants, focusing on their personal opinion, feelings and satisfaction with the Focus-Metaphor interface prototype.…”

Section: Online Evaluationmentioning

confidence: 99%

The Focus-Metaphor Approach: A Novel Concept for the Design of Adaptive and User-Centric Interfaces

Laqua

Brna

2005

Human-Computer Interaction - INTERACT 2005

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Abstract. The Focus-Metaphor Approach is a novel concept for the design of adaptive and user-centric virtual environments which seeks to use a form of associativity to adapt the interface to the user whilst keeping one primary focus element and many secondary and peripheral focus elements. In this paper, the underlying theory is presented and differentiated from related research. The proposed solution has been implemented as a prototype and tested for usability issues using an online evaluation and in-laboratory eye-tracking to find some evidence that time spent off-communication is reduced. The results are reported briefly, implications considered and the areas for further work are pointed out.

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Section: Online Evaluationmentioning

confidence: 99%

The Focus-Metaphor Approach: A Novel Concept for the Design of Adaptive and User-Centric Interfaces

Laqua

Brna

2005

Human-Computer Interaction - INTERACT 2005

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“…There was not a statistically significant increase in any individual scenarios with an overall p=0.13 for time in task and p=0. 35 for the time in tool from the ANOVA, as displayed in ▶ Figure 2A and ▶ Figure 2B, respectively.…”

Section: Efficiencymentioning

confidence: 99%

“…Sessions were designed to take about 30 minutes, but participants could use more time if needed. After completing the scenarios, participants completed the validated 19-item Computer System Usability Questionnaire (CSUQ) which assesses user satisfaction with the system usability on a seven point Likert type scale from strongly disagree to strongly agree [35]. …”

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confidence: 99%

Iterative Development and Evaluation of a Pharmacogenomic-Guided Clinical Decision Support System for Warfarin Dosing

Melton¹,

Zillich²,

Saleem³

et al. 2016

Appl Clin Inform

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SummaryObjective: Pharmacogenomic-guided dosing has the potential to improve patient outcomes but its implementation has been met with clinical challenges. Our objective was to develop and evaluate a clinical decision support system (CDSS) for pharmacogenomic-guided warfarin dosing designed for physicians and pharmacists. Methods: Twelve physicians and pharmacists completed 6 prescribing tasks using simulated patient scenarios in two iterations (development and validation phases) of a newly developed pharmacogenomic-driven CDSS prototype. For each scenario, usability was measured via efficiency, recorded as time to task completion, and participants' perceived satisfaction which were compared using Kruskal-Wallis and Mann Whitney U tests, respectively. Debrief interviews were conducted and qualitatively analyzed. Usability findings from the first (i.e. development) iteration were incorporated into the CDSS design for the second (i.e. validation) iteration. Results: During the CDSS validation iteration, participants took more time to complete tasks with a median (IQR) of 183 (124-247) seconds versus 101 (73.5-197) seconds in the development iteration (p=0.01). This increase in time on task was due to the increase in time spent in the CDSS corresponding to several design changes. Efficiency differences that were observed between pharmacists and physicians in the development iteration were eliminated in the validation iteration. The increased use of the CDSS corresponded to a greater acceptance of CDSS recommended doses in the validation iteration (4% in the first iteration vs. 37.5% in the second iteration, p<0.001). Overall satisfaction did not change statistically between the iterations but the qualitative analysis revealed greater trust in the second prototype. Conclusions: A pharmacogenomic-guided CDSS has been developed using warfarin as the test drug. The final CDSS prototype was trusted by prescribers and significantly increased the time using the tool and acceptance of the recommended doses. This study is an important step toward incorporating pharmacogenomics into CDSS design for clinical testing. Research ArticleBL Background And SignificancePersonalized medicine is an emerging field with the fundamental objective to predict a patient's response in order to individualize drug therapy for improved medication effectiveness and safety. Pharmacogenomic-guided drug therapy is at the forefront of personalized medicine with over 150 United States Food and Drug Administration (FDA) approved drug labels incorporating pharmacogenomic information.[1] Nonetheless, the translation of pharmacogenomic testing into routine clinical practice has been slow due to several obstacles towards its implementation [2][3][4]. Currently, the routine use of clinical pharmacogenomics is limited to centers with resources to overcome these obstacles [5][6][7][8][9].A major obstacle in the implementation of clinical pharmacogenomics is the rapid pace that science has identified genetic polymorphisms that can predict drug response. Th...

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“…Perceived usability was measured by means of a German translation of the well-established Post-Study System Usability Questionnaire (PSSUQ; Lewis, 1995). The PSSUQ has been widely applied for usability testing in laboratory settings.…”

Section: Subjective Usability Evaluationmentioning

confidence: 99%

The influence of socio-cultural background and product value in usability testing

Sonderegger

Sauer

2013

Applied Ergonomics

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This article examines the influence of socio-cultural background and product value on different outcomes of usability tests. A study was conducted in two different socio-cultural regions, Switzerland and East Germany, which differed in a number of aspects (e.g. economic power, price sensitivity and culture). Product value (high vs. low) was varied by manipulating the price of the product. Sixty-four test participants were asked to carry out five typical user tasks in the context of coffee machine usage, measuring performance, perceived usability, and emotion. The results showed that in Switzerland, high-value products were rated higher in usability than low-value products whereas in East Germany, high-value products were evaluated lower in usability. A similar interaction effect of socio-cultural background and product value was observed for user emotion. Implications are that the outcomes of usability tests do not allow for a simple transfer across cultures and that the mediating influence of perceived product value needs to be taken into consideration.

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IBM computer usability satisfaction questionnaires: Psychometric evaluation and instructions for use

Cited by 1,905 publications

References 12 publications

The Focus-Metaphor Approach: A Novel Concept for the Design of Adaptive and User-Centric Interfaces

The Focus-Metaphor Approach: A Novel Concept for the Design of Adaptive and User-Centric Interfaces

Iterative Development and Evaluation of a Pharmacogenomic-Guided Clinical Decision Support System for Warfarin Dosing

The influence of socio-cultural background and product value in usability testing

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