The museum that you are studying is the heart of the city of many large tech companies. While not planned, you run your study days following multiple announcements of layoffs at these companies. How would you explain how this event might impact your findings/study? The museum that you are studying is the heart of the city of many large tech companies. While not planned, you run your study days following multiple announcements of layoffs at these companies. How would you explain how this event might impact your findings/study? history effect selection external validity - your ability to generalize maturation