2000

Kennet, J., McGuire, L., Willis, S. L., & Schaie, K. W. (2000). Memorability functions in verbal memory: A longitudinal approach. Experimental Aging Research, 26, 121-137.

Maitland, S. B., Intrieri, R. C., Schaie, K. W., & Willis, S. L. (2000). Gender differences and cognitive abilities across the adult life span. Aging, Neuropsychology & Cognition, 7, 1-22.

Schaie, K. W., & Willis, S. L. (2000). A stage theory model of adult cognitive development revisted. In B. Rubinstein, M. Moss, & M. Kleban (Eds.), The many dimensions of aging: Essays in honor of M. Powell Lawton (pp. 173-191). New York: Springer.

Willis, S. L. (2000). Driving competence: The Person x Environment Fit. In K. W. Schaie & M. Pietrucha (Eds). Mobility and Transportation in the elderly (pp. 269-278). New York: Springer.

2001

Jobe, J. B., Smith, K., Tennstedt, S. L., Marsiske, M., Willis, S. L., Rebok, G. W., Morris, J. N., Helmers, K., Leveck, M. D., & Kleinman, K. (2001). ACTIVE: A cognitive intervention trial to promote independence in older adults. Controlled Clinical Trials, 4, 453-479.

Schaie, K. W., Nguyen, H. T., Willis, S. L., Dutta, R., & Yue, G.A. (2001). Environmental factors as a conceptual framework for examining cognitive performance in Chinese adults. International Journal of Behavioral Development, 25, 193-202.

Willis, S. L. (2001). Methodological issues in behavioral intervention research with the elderly. In J. E. Birren & K. W. Schaie (Eds.), Handbook of the psychology of aging (5th ed., pp. 78-108). San Diego, CA: Academic Press.

Willis, S. L., & Margrett, J. A. (2001) Aging and education. In N. J. Smelser & P. B. Baltes (Eds.), The international encyclopedia of the social and behavioral sciences (pp. 299-304). Oxford, UK: Elsevier Science Ltd.

2002

Allen-Burge, R., Welsh, D. L., Willis, S. L., & Schaie, K. W. (2002). The aging personality and self: Diversity and health issues. In R. Tallis, H. Fillit, & J. C. Brocklehurst (Eds.), Geriatric medicine and gerontology (2nd ed., pp. 143 – 153). Edinburgh, UK: Churchill Livingstone.

Ball, K., Berch, D. B., Helmers, K. F., Jobe, J. B., Leveck, M.D., Marsiske, M., Morris, J. N., Rebok, G. W., Smith, D. M., Tennstedt, S. L., Unverzagt, F. W., & Willis, S. L. (2002). Effects of cognitive training interventions with older adults. Journal of the American Medical Association, 288, 2271-2281.

Kramer, A. F. & Willis, S. L. (2002). Enhancing the cognitive vitality of older adults. Current Directions in Psychological Science, 11, 173-177.

Saczynski, J. S., Willis, S. L, & Schaie, K. W. (2002). Strategy use in reasoning training with older adults. Aging, Neuropsychology, and Cognition, 9, 48-60.

2003

Diehl, M., & Willis, S. L. (2003). Everyday competence and everyday problem solving in aging adults: The role of physical and social context. In H. W. Wahl, R. Scheidt, & P. Windley (Eds). Annual Review of Gerontology and geriatrics. Aging in context: Socio-physical environments (Vol. 23, pp. 130-166). New York: Springer.

Kramer, A. F., & Willis, S. L. (2003). Cognitive plasticity and aging. In B. Ross (Ed). The psychology of learning and motivation, (Vol. 43, pp. 267-302). New York: Academic Press.

Margrett, J. A., & Willis, S. L. (2003). Everyday problem solving. In D. Ekerdt, The Macmillan Encyclopedia of Aging. New York: Macmillan.

Willis, S. L. (2003). Programmatic interventions with the older driver: A conceptual framework. In K. W. Schaie, H.-W. Wahl, & H. Mollenkopf (Eds.), Aging in the community: Living arrangements and mobility. (pp. 263-278) New York: Springer.

2004

Caskie, G. I. L., & Willis, S. L. (2004). Congruence of self-reported medications with pharmacy prescription records in low-income older adults. Gerontologist, 44, 176-185.

Caskie, G. I. L., Schaie, K. W., & Willis, S. L. (2004). Relationship of cardiovascular disease to change in cognitive abilities. Gerontologist, 44, 97-98.

Saczynski, J. S., Margrett, J. M., & Willis S. L. (2004). Older adults’ strategic behavior: Effects of individual versus collaborative cognitive training. Educational Gerontology, 30, 587-610.

Schaie, K. W., Willis, S. L., & Caskie, G. I. L., (2004). The Seattle Longitudinal Study: Relationship Between Personality and Cognition. Aging, Neuropsychology and Cognition, 11, 304-324.

Willis, S. L. (2004). Technology and learning in current and future elder cohorts. In R. Pew & S. Van Hemel (Eds.), Technology for adaptive aging. (pp. 209-229). Washington, DC: National Academy Press.

2005

Diehl, M, Marsiske, M. Horgas, A. L., Rosenbert, A., Saczynski, J., Willis, S. L., (2005). The revised observed tasks of daily living: A performance-based assessment of everyday problem solving in older adults, Journal of Applied Gerontology, 24, 211-230.

Kramer, A. & Willis, S. (2005). Enhancing the cognitive vitality of older adults.​ In J. Lerner & A. E. Alberts (Eds.), Developmental Psychology Reader. New York: Prentice Hall.

Schaie, K. W., Boron, J. B., & Willis, S. L., (2005). Everyday competence in older adults. In P. Coleman (Ed.). Cambridge handbook of adult development and aging, (pp. 216-228). Cambridge, UK: Cambridge University Press.

Schaie, K. W., Caskie, G. I. L., Revell, A. J., & Willis, S. L. , Kszniak, A. J. & Teri, L. (2005). Extending neuropsychological assessments into the Primary Mental Ability Space. Aging, Neuropsychology and Cognition, 12, 245-277.

Schaie, K. W., Willis, S. L., & Pennak, S. (2005). A historical framework for cohort differences in intelligence. Research in Human Development 2, 43-67

Willis, S. L., & Schaie, K. W. (2005). Cognitive trajectories in midlife and cognitive functioning. In S. L. Willis & M. Martin (Eds.), Middle adulthood: A lifespan perspective. Thousand Oaks: Sage Publications.

2006

Allaire, J., & Willis, S. L. (2006). Everyday activities as a predictor of cognitive and mortality. Aging, Neuropsychology and Cognition, 13, 207-224.

Caskie, G. I. L., & Willis, S. L. (2006). Research design and methodological issues for adulte development and learing. In C. Hoare (Ed.), Handbook of adult development and learning (pp. 52-70). New York: Oxford University Press.

Caskie, G. I. L., Willis, S. L., Zanjani, F. & Schaie, K. W. (2006). Congruence of medication information from a brown bag data collection and pharmacy records: Findings from the Seattle Longitudinal Study. Experimental Aging Research. 32, 79-103.

Margrett, J. A., & Willis, S. L. (2006). In-Home cognitive training with older married couples: Individual versus collaborative learning. Aging, Neuropsychology and Cognition, 13, 173-195.

Willis, S. L., (2006). Technology and learning in current and future generations of elders. Generations 30, 44-48.

Willis, S. L., & Schaie, K. W. (2006). A co-constructionist view of the third age: The case of cognition. In P. Wink & J. James (Eds). Annual Review of Gerontology and Geriatrics (Vol. 26, pp. 131-152). New York: Springer Publishing Co.

Willis, S. L. & Schaie, K. W. (2006). Cognitive functioning among in the baby boomers: Longitudinal and cohort effects. In S. K. Whitbourne & S. L. Willis (Eds.), The Baby Boomers (pp. 205-234). New York: Erlbaum.

Willis, S. L., Tennstedt, S.L., Marsiske, M., Ball, K., Elias, J., Koepke, K. M., Morris, J.N., Rebok, G. Unverzagt, F. W., Stoddard, A. M., & Wright, E. (2006). Long terms effects of cognitive training on everyday functional outcomes in older adults. Journal of the American Medical Association, 296, 2805-2814.

Zanjani, F. I. K., Schaie, K. W., & Willis, S. L. (2006). Age group and health status effects on health behavior change. Preventive Medicine, 32, 36-46.

2007

Blaskewicz-Boron, Turiano, N. A., J., Willis, S. L., & Schaie, K. W. (2007). Effects of cognitive training on change in accuracy in inductive reasoning ability. Journals of Gerontology: Psychological Sciences, 62, 179-186.

Blaskewicz-Boron, J., Willis, S. L., & Schaie, K. W. (2007). Cognitve training gain as a predicor of mental status. Journals of Gerontology: Psychological Sciences, 62, 45-52.

Unverzagt, F. W., Kasten, L., Johnson, K. E., Rebok, G. W., Marsiske, M., Koepke, K. M., Elias, J. F. Morris, J N., Willis, S. L., Ball, K., Rexroth, D. F. Smith, D. M., Wolinsky, F. D., &, Tenstedt, S. L. (2007). Effect of memory impairment on training outcomes in ACTIVE. Journal of the International Neuropsychological Society, 13, 953-960.

2008

Ayotte, B, Margrett, J. M., Willis, S. L., & Caskie G. I. L. (2008). The relationship between prescription drug usage and cognitive performance in later life. Journal of Aging and Mental Health, 31, 970-121.

Willis, S. L., & Boron, J. (2008). Midlife cognition: The association of personalit with cognition and risk of cognitive impairment. In S, Hofer & D. Alwin (Eds.), Handbook of cognitive aging: Inerdisciplinary perspectives (pp. 647-661). Thousand Oaks, CA: Sage.

2009

Cardi, M., Munk, N., Zanjani, F., Kruger, T., Schaie, K. W., & Willis, S. L. (2009). Health behavior risk factors across age as predictors of cardiovascular disease diagnosis. Journal of Aging and Health, 21, 759-775 (NIHMSID # 185763).

Revell, A. J., Caskie, G. I . L., Willis, S. L., & Schaie, K. W. (2009). Factor structure and invariance of the Quality-of lifein Alzheimer’s Disease (QoL-Ad) Scale. Experimental Aging Research, 35, 250-267.

Siegler, I. C., Poon, L. W., Madden, D. J., Dilworth-Anderson, P., Schaie, K. W., Willis, S. L., & Martin, P. (2009). Psychological aspects of normal aging. In D. G. Blazer & D. Steffens (Eds.), Handbook of geriatric psychiatry (4th ed., pp. 437-156). Arlington, VA: American Psychiatric Publishing.

Willis, S. L. & Schaie, K. W. (2009). Cognitive training and plasticity: Theoretical perspective and methodological consequences.​ Restorative Neurology and Neuroscience, 27, 1-15.

Willis, S. L., Schaie, K. W., & Martin, M. (2009). Cognitive plasticity. In V. L. Bengtson, M. Silverstein, N. Putney, & D. Gans. Handbook of theories of aging (2nd ed., pp. 295-322). New York: Springer Publishing Co.

Yu, F., Ryan L. H., Schaie, K. W., Willis. S. L., & Kolanowski A. (2009). Factors associated with cognition in adults: the Seattle Longitudinal Study. Research in Nursing & Health, 32, 540-550.