After reading this chapter, you should be able to:
- Outline Darwin’s theory of natural selection and the historical context in which he developed it.
- Identify and evaluate the contributions Francis Galton made to the development of psychology as an empirical science.
- Explain the importance of psychophysics as a foundation for experimental psychology.
- Discuss the work of the early experimental psychologists Hermann von Helmholtz, Christine Ladd-Franklin, and Hermann Ebbinghaus.