Promelute Inc., a pharmaceutical company, conducts a study for its new drug for the treatment of obsessive-compulsive disorder. The researcher is unclear about the results of the study because he is not sure if the improvement observed resulted from the properties of the drug or from the participants' expectations about the effect of the drug. Such an effect is known as a(n) effect.

Placebo effect

Explanation: Placebo effect is the experience of positive outcome due to expectations.

It is a phenomenon where one's brain convince the body that an inactive substance (like diluted sugar, sterile water) taken or consumed can lead to a relief from an ailment or that a sham treatment can lead to a relief from an ailment which in turn truely cause a relief from the ailment, not because of the inactive substance taken or the sham treatment taken but because of how the brain stimulates the body chemically to believe it actually works.

Such effect is known as the placebo effect.

the united states constitution is the supreme law of the united states. the constitution, originally comprising seven articles, delineates the national frame of government. its first three articles embody the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral congress; the executive, consisting of the president; and the judicial, consisting of the supreme court and other federal courts. articles four, five and six embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relationship to the federal government, and the shared process of constitutional amendment. article seven establishes the procedure subsequently used by the thirteen states to ratify it. it is regarded as the oldest written and codified national constitution in force.

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