None of the above it was founded in 1847
We know that electrons are negatively charged, so we need to explain why electrons are orbiting the atom in the first place. The only logical explanation for this is by saying that there is a positive charge in the atom somewhere that attracts the negatively charged electrons to the atom.
<em>Answer:</em>
<em>observer effect </em><em> </em>
<em>Explanation:</em>
<em>In psychology, </em><em>the observer effect is described as a phenomenon in which there's a possibility that a specific act or behavior of observation might affect the different properties of the thing (what) is being observed. Therefore, it can reflect effects depending on an entirely different nature utilizing a specific mechanism and context.</em>
<em>In other words,</em><em> it refers to the act of observation that can influence a particular phenomenon that is being observed.</em>
<em><u>The correct answer is observer effect.</u></em>
Goal setting theory is an influential and practical theory and there's a strong evidence that setting goals help to improve: measured performance.
<h3>What is a goal?</h3>
A goal is simply an outcome statement and strategic objectives that defines what an individual or team hopes to successfully achieve in the future, usually over a specific period of time.
Basically, a goal refers to a futuristic idea or desired result that an individual or team envision, plan and commit to accomplish over a specific period of time.
In conclusion, we can deduce there's a strong evidence that setting goals help to improve measured performance of an individual or team.
Read more on goals here: brainly.com/question/24693533
