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A Diffusion Model Analysis of the Effects of Aging on Sentence Memory

Kordella, Bethany C.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1238100645

Abstract Details

2009, Master of Arts, Ohio State University, Psychology.
Many studies examining the effects of aging on memory and sentence processing rely on a single dependent variable to generate their conclusions: either accuracy or response time. The conclusions derived from analysis of a single variable often stand in direct opposition to one another, with studies using response time frequently finding universal cognitive deficits and studies using accuracy finding task-dependent deficits. The diffusion model (Ratcliff, 1978) provides a method to analyze both variables in an integrated manner in order to meaningfully separate components of processing. These components of processing can then be compared across age groups to determine where and if age-related deficits exist. We apply the diffusion model to data from three experiments with young and older adults using sentences as the stimuli. Relative to young adults, older adults show improved memory for facts in general knowledge, comparable recognition memory, and a deficit in source memory for sentences. The importance of analyzing both response time and accuracy data is discussed.
Gail McKoon, PhD (Advisor)
Roger Ratcliff, PhD (Committee Member)
Simon Dennis, PhD (Committee Member)
85 p.
Psychology
diffuson model; aging; recognition; source; sentence processing

Recommended Citations

Citations

  • Kordella, B. C. (2009). A Diffusion Model Analysis of the Effects of Aging on Sentence Memory [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1238100645

    APA Style (7th edition)

  • Kordella, Bethany. A Diffusion Model Analysis of the Effects of Aging on Sentence Memory. 2009. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1238100645.

    MLA Style (8th edition)

  • Kordella, Bethany. "A Diffusion Model Analysis of the Effects of Aging on Sentence Memory." Master's thesis, Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1238100645

    Chicago Manual of Style (17th edition)

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© 2009, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.