A researcher studying the effect of a dietary supplement on sleep finds that research participants who take the supplement sleep an average of 7 hours and 25 minutes per night, while participants who were given a placebo pill with no active ingredients in it sleep for an average of 7 hours and 20 minutes. These findings are clearly .

The correct answer is clinically insignificant

In this sense, there was no significant difference between patients who used placebo and those who did not.

Scientifically proven, the placebo effect is centered on the idea that the patient's expectations and beliefs can promote biological changes in favor of curing diseases. There are confirmations of results of improvements in different diseases with the use of inactive drugs or the simulation of a medical procedure.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;