Individuation: the<i>N</i>= 1 revolution

Hancock, Peter A.; Hancock, Gabriella M.; Warm, Joel S.

doi:10.1080/14639220903106387

Cited by 56 publications

(23 citation statements)

References 19 publications

(17 reference statements)

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“…Virzi (1992), R.A (1992), when conducting research into usability, found 80% of problems, including the most severe, are detected with the first 4-5 subjects, illustrating how key insights can be gained with very small samples. Hancock et al (2009) also argue that ideographic case representations are increasingly relevant for the design of humanmachine systems, as advances in technology begin to focus on exploiting individual differences. Supporting these sentiments, this paper describes the results from an intergroup case study of home heating control, focusing in detail on 3 individual case studies taken from a pool of 6.…”

Section: Introductionmentioning

confidence: 99%

Case studies of mental models in home heat control: Searching for feedback, valve, timer and switch theories

Revell

Stanton

2014

Applied Ergonomics

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An intergroup case study was undertaken to determine if: 1) There exist distinct mental models of home heating function, that differ significantly from the actual functioning of UK heating systems; and 2) Mental models of thermostat function can be categorized according to Kempton's (1986) valve and feedback shared theories, and others from the literature. Distinct, inaccurate mental models of the heating system, as well as thermostat devices in isolation, were described. It was possible to categorise thermostat models by Kempton's (1986) feedback shared theory, but other theories proved ambiguous. Alternate control devices could be categorized by Timer (Norman, 2002) and Switch (Peffer et al., 2011) theories. The need to consider the mental models of the heating system in terms of an integrated set of control devices, and to consider user's goals and expectations of the system benefit, was highlighted. The value of discovering shared theories, and understanding user mental models, of home heating, are discussed with reference to their present day relevance for reducing energy consumption.

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Section: Introductionmentioning

confidence: 99%

Case studies of mental models in home heat control: Searching for feedback, valve, timer and switch theories

Revell

Stanton

2014

Applied Ergonomics

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“…Single case studies, while limited by generalizability, have been recognised in the generation of theory, definition of concepts and in capturing the context surrounding phenomena (Darke et al, 1998). Furthermore, Hancock et al (2009) points out the benefits of individual cases in studying human-machine interactions.…”

Section: Application Of the Parrc Model: A Case Study Of Distracted Dmentioning

confidence: 99%

Exploring the mechanisms of distraction from in-vehicle technology: The development of the PARRC model

2016

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“…Several authors have made a cogent case for studying individual differences in personality, motivation, cognitive abilities, and coping strategies in the study of ergonomics problems (Baldwin 2009;Cox-Fuenzalida, Swickert, and Hittner 2004;Cox-Fuenzalida et al 2006;Drury et al 2009;Eysenck 2010;Hancock, Hancock, and Warm 2009;Karwowski 2000;Matthews and Campbell 2009;Szalma 2008;Szalma and Taylor 2011;Szymura 2010;Verhagen 1993). In principle, such knowledge could be used to modify system designs so that individual differences no longer present meaningful variation in performance, to customise designs, and to take advantage of human capabilities and limitations.…”

Section: Introductionmentioning

confidence: 99%

Individual differences in the experience of cognitive workload

Guastello

Shircel

Malon

et al. 2014

Theoretical Issues in Ergonomics Science

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This study investigated the roles of four psychosocial variables -anxiety, conscientiousness, emotional intelligence, and Protestant work ethic -on subjective ratings of cognitive workload as measured by the Task Load Index (TLX) and the further connections between the four variables and TLX ratings of task performance. The four variables represented aspects of an underlying construct of elasticity versus rigidity in response to workload. Participants were 141 undergraduates who performed a vigilance task under different speeded conditions while working on a jigsaw puzzle for 90 minutes. Regression analysis showed that anxiety and emotional intelligence were the two variables most proximally related to TLX ratings. TLX ratings contributed to the prediction of performance on the puzzle, but not the vigilance task. Severity error bias was evident in some of the ratings. Although working in pairs improved performance, it also resulted in higher ratings of temporal demand and perceived performance pressure.

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Individuation: theN= 1 revolution

Cited by 56 publications

References 19 publications

Case studies of mental models in home heat control: Searching for feedback, valve, timer and switch theories

Case studies of mental models in home heat control: Searching for feedback, valve, timer and switch theories

Exploring the mechanisms of distraction from in-vehicle technology: The development of the PARRC model

Individual differences in the experience of cognitive workload

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