%0 Journal Article %1 Jastrzembski2007 %A Jastrzembski, Tiffany S. %A Charness, Neil %D 2007 %J Journal of Experimental Psychology %K GOMS olderAdults %N 4 %P 224–248 %T The Model Human Processor and the older adult: Parameter estimation and validation within a mobile phone task. %V 13 %X The authors estimate weighted mean values for nine information processing parameters for older adults using the Card, Moran, and Newell (1983) Model Human Processor model. The authors validate a subset of these parameters by modeling two mobile phone tasks using two different phones and comparing model predictions to a sample of younger (N = 20; M_age = 20) and older (N = 20; M_age = 69) adults. Older adult models fit keystroke-level performance at the aggregate grain of analysis extremely well (R = 0.99) and produced equivalent fits to previously validated younger adult models. Critical path analyses highlighted points of poor design as a function of cognitive workload, hardware/software design, and user characteristics. The findings demonstrate that estimated older adult information processing parameters are valid for modeling purposes, can help designers understand age-related performance using existing interfaces, and may support the development of age-sensitive technologies.

@article{Jastrzembski2007, abstract = {The authors estimate weighted mean values for nine information processing parameters for older adults using the Card, Moran, and Newell (1983) Model Human Processor model. The authors validate a subset of these parameters by modeling two mobile phone tasks using two different phones and comparing model predictions to a sample of younger (N = 20; M_age = 20) and older (N = 20; M_age = 69) adults. Older adult models fit keystroke-level performance at the aggregate grain of analysis extremely well (R = 0.99) and produced equivalent fits to previously validated younger adult models. Critical path analyses highlighted points of poor design as a function of cognitive workload, hardware/software design, and user characteristics. The findings demonstrate that estimated older adult information processing parameters are valid for modeling purposes, can help designers understand age-related performance using existing interfaces, and may support the development of age-sensitive technologies.}, added-at = {2011-09-09T22:49:13.000+0200}, author = {Jastrzembski, Tiffany S. and Charness, Neil}, biburl = {https://www.bibsonomy.org/bibtex/22422ce37af6f13a70b08c6f9c1b6deff/naegle}, interhash = {e15ddb1fc0d757546caa32684036c998}, intrahash = {2422ce37af6f13a70b08c6f9c1b6deff}, journal = {Journal of Experimental Psychology}, keywords = {GOMS olderAdults}, number = 4, pages = {224–248}, timestamp = {2011-10-14T13:28:36.000+0200}, title = {The Model Human Processor and the older adult: Parameter estimation and validation within a mobile phone task.}, volume = 13, year = 2007 }