Technology has always been closely linked to the ways in which people have lived. Before the development of civilization, humans lived for many millennia with tools and techniques that allowed them to live successfully in a wide variety of environments. From primitive stone implements to fairly sophisticated and specialized tools, prehistoric humans developed technologies that allowed them to increase their control over the natural world. In return, the tools that they used increasingly changed their way of life.
Answer:
The Declaration of Sentiments
Explanation:
Answer:
Positioning stage of courtship.
Explanation:
As the exercise describes, Marco and Kris are most likely at the positioning stage of courtship as this stage shows them close, facing eachother. Marco holding her hand shows how the involvement increased, creating an atmosphere between them that would make others trying to enter it feel like intruders. So what this stage consists of is the increased involvement, a somewhat apropiation of space between the individuals and the keen attention on eachother.
To minimize the extent to which outcome differences between experimental and control conditions can be attributed to placebo effects, researchers make use of double-blind procedure.
Placebo effects also called as dummy treatment are tablets and injections that do not have any physiological significance but it gives a psychological effect to the patient that can have a positive impact on the recovery of the patient.
It is usually given during clinical trial to understand the practical application of drugs. The patient do know whether they have been given the placebo or the real medicine.
Double-blind procedure is a method of clinical trial in which both the doctors and participants are unaware which treatment is given to which candidate in order to minimize the bias from the trials.
To learn more about Placebo effects here
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