Professor of Statistics Liam O’Brien has coauthored a paper, “Assessing Older Adult Wellness: An Assessment of the Psychometric Properties of the Lifestyle Survey,” recently published in the Journal of Nursing Measurement. “The purpose of this study is to examine the validity and reliability of the Lifestyle Survey instrument,” according to the study’s abstract. The researchers concluded that “with refinement, the Lifestyle Survey is a valid and reliable measure of wellness among community-dwelling older adults.”