The null hypothesis would be that where there is no statistical relationship exists when the psychologist compares the three behavior treatments with a diagnosis of anxiety.
A psychologist is a professional doctor who treats patients with mental illnesses. The mental illnesses can be anxiety, dementia, alzymier, depression, and many more.
When a clinical psychologist makes a comparison between behavior treatments of their patients in respect of an anxiety diagnosis, then if he/she finds that there exists no interconnection between the two variables. This means that the psychologist has applied the theory of null hypothesis.
Therefore, while making a comparison between two variables by a psychologist, the null hypothesis would be that there should be no interlinkage between them.
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