Controls, null hypotheses, experiment terms

Can you go over experiment terms like positive/negative controls, null/alternate hypothesis, chi square, etc.?

yeah can we go over recognizing controls in an experiment

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Ya especially null hypothesis and what’s statistically significant and what’s not

Here’s an overview for the kinds of controls:
A positive control group is where you are trying to replicate your known results. A negative control group is so that nothing will happen. Both of these can be helpful to compare the results found throughout the experiment. A negative control can help clarify whether the independent and dependent variable have a correlation to each other, and a positive control group can help with comparison of results.
A null hypothesis is similar to a negative control: it is hypothesizing that nothing will happen. Conducting a chi-square will help clarify whether the independent variable does actually impact the dependent variable.
I hope this helps!

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