We can't watch them and actually get a fully natural or accurate result.Īnd this is what's called the observer effect. We can't actually observe somebody without changing them in some way. Now, we're not measuring small particles within psychology, but the same is still generally true. I can't figure out the momentum without changing the position or moving it out of the way. Because when I look at it, it stops the movement or it redirects it in some way the way I'm looking at it changes it and vice versa. So in other words, I can't look at the position of a particle without affecting how it's moving. When we're examining quantum particles, which are really small, small particles we talk about, we found that you can't actually measure one aspect of these tiny particles without affecting another one. And this is something that was developed with quantum physics, which sounds difficult, but it makes a lot of sense. To some of you and this is called the Heisenberg Uncertainty Principle. To illustrate a bit of this, I'm going to talk about another scientific concept that might be familiar. And so that's what we're going to talk about for today. But there are still some issues that we have to deal with, with observers and their effects on research. So the idea is that the results are more accurate, because they reflect normal behaviors of people in the world. So as we said before, one are the strengths of non-experimental methods of research, like observations, case studies, or clinical studies, is that they look at people within a natural setting.
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