Alternative Hypothesis: (a.k.a. H 1) a statement (about a population parameter) that is contrary to the null hypothesis. Usually this is what a researcher is trying to prove. Confidence Coefficient: ...

It may be common knowledge that p < .05 indicates statistical significance. Psychology students (and others) are often taught that p < .05 means the probability (p) of rejecting the null hypothesis ...

In order to test a hypothesis in traditional (“frequentist”) statistics, you posit an alternative called the “null hypothesis”. The null hypothesis should be chosen so as to represent the default ...