Some patients who are given a sugar pill to treat headaches feel much better this is an example of: D: control affect A: placebo effect B: randomization effect c: experimental effect

Placebo affect

Explanation:

This is an example of a placebo effect. A placebo is something that seems to be a "real" medical treatment but the truth, it isn't. It could be a pill, an injection, or some other kind of "fake" treatment. What all placebos have in common is that they do not encompass an active substance meant to affect health.

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.

answer; in stage 6; morality of individual principles and conscience;