Sandy sue was participating in an experiment in which she was given a pill that was supposed to cause her to get drowsy. five minutes after taking the pill, sandy sue reported that she felt drowsy and wanted to lie down. the pill was actually made of sugar and had no ingredients to cause drowsiness. how do you explain sandy sue's drowsy feeling?
a. experimenter effectb. placebo effectc. subject biasd. treatment effect

Placebo effect

Explanation:

In medical research, Placebo effect refers to the change in individual's condition that is caused by the individual's own belief rather than  the treatment or drugs given by the individuals.

So, here are the sequence of events that might explain the case mentioned above :

1. Sandy sue is given a pill.

2. The pill is only made by sugar and no ingredients to cause drowsiness.

3. But, the researchers told Sandy that the pill cause drowsiness.

4. Because she perceived the researchers as someone that know more about these things than her, she trick herself into believing that the drugs actually have that effect. The belief is so strong to the point where her body start mimicking the effect that she expected to has. Which is why she reported that she felt drowsy and wanted to lie down five minute after.