Final answer:
Galton's approach of measuring intelligence based on reaction times was flawed and limited.
Step-by-step explanation:
The approach used by Galton to measure reaction times in order to determine a person's underlying intelligence was flawed. Intelligence is a complex and multi-faceted construct that cannot be accurately measured through a single variable such as reaction time. Galton's approach did not take into account other important factors that contribute to intelligence, such as problem-solving abilities, reasoning skills, and creativity.
Moreover, intelligence is not solely determined by reaction time. Many other factors, such as genetics, environment, education, and life experiences, also play a significant role in shaping a person's intellectual capabilities.
Therefore, Galton's approach to measuring intelligence based on reaction times is limited and does not provide a comprehensive understanding of a person's intellectual abilities.