The Knowledge of Memory Aging Questionnaire (KMAQ) measures laypersons' knowledge of normal memory changes and pathological memory deficits in adulthood. In Experiment 1, undergraduate and graduate social work students and social work practitioners completed the KMAQ. Social workers and graduate students were more accurate on the pathological than normal memory aging items, but undergraduate students' knowledge did not differ by question type. Experiment 2 was a conceptual replication where the same pattern of outcomes was obtained using a more heterogeneous sample to increase the ecological validity of the findings. Results confirmed that nonmedical and medical staff at an assisted living facility and health care professionals were more accurate on the pathological than normal memory aging items. Community college and university students' accuracy was similar across question type. Implications for research and the design of education programs to increase awareness of normal and pathological memory deficits in late life are considered. (Contains 4 tables and 2 figures.)