Final answer:
The provided information does not include a specific retirement date for the psychologist Watson. However, examples of contemporaries such as Einstein and Crick show a trend of continued work until their deaths, offering context but not a direct answer to the question about Watson.
Step-by-step explanation:
The specific retirement of Watson, the psychologist mentioned, is not explicitly detailed in the provided information. However, speaking broadly about prominent figures and retirements in related fields, it can be noted that many significant scientists and thinkers, such as Einstein, Crick, and others, remained active in their respective fields, often until their death. For instance, Einstein continued to work after emigrating to the United States until his death in 1955, engaging not only in scientific work but also in various intellectual and political activities. Similarly, Crick shifted his focus to studying the brain and human consciousness at the age of 60 and pursued this research for the remaining 28 years of his life. While these examples do not explicitly mention Watson's retirement from psychology, they illustrate a pattern of long-term dedication to research and thought leadership by academics and scholars in similar fields.