It is called experimenter bias
experimenter bias refers to the cognitive bias that held by researchers that might cause them to subconsciously influence the outcome of the experiment.
The most likelt cause of this bias is a situation where experimenters held a certain belief or expectation for the outcome of the experiment.
Answer: This is a " WORD-FOR-WORD PLAGIARISM".
Explanation: Word-for-word plagiarism is a type of plagiarism were someone copies another person's work word-for-word, without acknowledging the source it is been copied from.
The student has copied the original source word-for-word without acknowledging the source. The word been copied is "where variables are measured separately and then a mathematical model is chosen to portray the relationship among the variables". Which is the same in both version.
Though the student has used it in a different form to describe and define a different context from the main source. It is still plagiarism, because the student has copied it from the main source without acknowledgement
<span>The law of conservation of energy states that energy can change from one form into another, but it cannot be created or destroyed. Or the general definition is: The totalenergy of an isolated system remains constant over time. ... A device that demonstrates the Law of Conservation of Mechanical Energy and Momentum.</span>
