The modified Telephone Interview for Cognitive Status (mTICS) is a commonly used screening tool for categorizing mental status of older adults. Recently, prediction equations have been developed to estimate performance on an in-person memory composite based on the mTICS; however, these equations need validation. The current study compared predicted memory functioning based on these equations with observed memory functioning in 101 community-dwelling older adults. Observed and predicted memory composites were comparable for 2 of 6 equations (mTICS total score and immediate recall item), indicating that these equations adequately predict observed memory scores. The predicted memory composite based on the total score was also most highly correlated with the observed memory composite. These results further validate the mTICS, as well as some of the prediction equations, and continue to point out this measure as an efficient tool for screening of cognitive functioning in later life.