@article{ref1,
title="The Model Human Processor and the older adult: Parameter estimation and validation within a mobile phone task",
journal="Journal of experimental psychology: applied",
year="2007",
author="Jastrzembski, Tiffany S. and Charness, Neil",
volume="13",
number="4",
pages="224-248",
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-sub(age) = 20) and older (N = 20; M-sub(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.<p /> <p>Language: en</p>",
language="en",
issn="1076-898X",
doi="10.1037/1076-898X.13.4.224",
url="http://dx.doi.org/10.1037/1076-898X.13.4.224"
}