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Variable selection via a penalized likelihood approach has been used for generalized linear models, and corresponding estimates enjoy an oracle property (Fan and Li, 2001). In this talk, I will discuss the problem of variable selection for the proportional odds model, which is an alternative to Cox's proportional hazard model and fits better in many(More)
Purpose This study evaluates how proposition density can differentiate between persons with aphasia (PWA) and individuals in a control group, as well as among subtypes of aphasia, on the basis of procedural discourse and personal narratives collected from large samples of participants. Method Participants were 195 PWA and 168 individuals in a control(More)
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