One possibility is "Lab Assistant"
scientist doctor physicist researcher experimenter
It is called a Sphygmomanometer.
The variable that is being tested or changed by the person conducting the experiment is called the independent variable. This variable is manipulated to observe its impact on the dependent variable, which is the outcome being measured in the experiment.
Most commonly this person is called a "proctor."
There Is Independent Which can Be Changed and Dependent That Cannot Be Changed.
It is called the hyropolific procedure
If the person helps with equipment then they're a roadie, if the person is a fan of the band they are a groupie.
Empiric
The independent variable is the factor changed by the scientists.The dependent variable (think of it like this: it dependson the results of the experiment) is what is measured.
A teacher (also called a schoolteacher) is a person who provides education for students.
By bare wires i presume that you mean wires not in closed in a protective sheath. As an experiment wires will have to be changed around quickly to see what the results of the connection produce. Once an experiment changes status to equipment production the regulations change to safety. The customer has to be protected from electrical shock. In an electrical experiment safety has to be the responsible of the person doing the experiment.
The variable that is being tested or changed by the person conducting the experiment is called the independent variable. It is the factor that is purposely manipulated in order to observe its effect on another variable, known as the dependent variable.