Null Hypothesis Significance Testing - SAGE Research Methods
Research Methods | Validity (Statistics) | Null Hypothesis
the opposite of the research hypothesis. The null hypothesis states that any effects observed after treatment (or associated with a predictor variable) are due to chance alone. Statistically, the question that is being answered is "If these samples came from the same population with regard to the outcome, how likely is the obtained result?"
Some Basic Null Hypothesis Tests | Research Methods …
A null hypothesis (H0) exists when a researcher believes there is no relationship between the two variables, or there is a lack of information to state a scientific hypothesis. This is something to attempt to disprove or discredit.