Final answer:
The Pearson's r correlation coefficient of -.81 signifies a strong negative linear relationship between police experience and the use of force, suggesting more experience could result in less use of force.
Step-by-step explanation:
The Pearson’s r correlation coefficient of -.81 indicates a strong negative linear relationship between the years on the police force and the use of force during arrests. The negative sign means that as the number of years on the police force increases, the use of force during arrests tends to decrease.
Given that this coefficient is significantly different from zero and close to -1, it suggests that increases in experience on the force may be associated with a reduction in the use of force by police officers.