A study concludes that “the intervention resulted in a statistically significant reduction in hospital readmissions (p

Question

A study concludes that “the intervention resulted in a statistically significant reduction in hospital readmissions (p < 0.01)." What does this mean?

Accepted Answer

The observed reduction is unlikely to be due to chance.

Answer

The reduction is clinically important.

Answer

The study has perfect internal validity.

Answer

The intervention caused every patient to avoid readmission.

A study concludes that “the intervention resulted in a statistically significant reduction in hospital readmissions (p < 0.01)." What does this mean?