Mindfulness

A mental disorder, also referred to as a mental illness,[6] a mental health condition,[7] or a psychiatric disability,[2] is a behavioral or mental pattern that causes significant distress or impairment of personal functioning.[8] A mental disorder is also characterized by a clinically significant disturbance in an individual's cognition, emotional regulation, or behavior, often in a social context.[9][10] Such disturbances may occur as single episodes, may be persistent, or may be relapsing–remitting. There are many different types of mental disorders, with signs and symptoms that vary widely between specific disorders.[10][11] A mental disorder is one aspect of mental health.

The causes of mental disorders are often unclear. Theories incorporate findings from a range of fields. Disorders may be associated with particular regions or functions of the brain. Disorders are usually diagnosed or assessed by a mental health professional, such as a clinical psychologist, psychiatrist, psychiatric nurse, or clinical social worker, using…

Statistical significance

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Main article: statistical significance

Statistical significance is used in hypothesis testing, whereby the null hypothesis (that there is no relationship between variables) is tested.[2] A level of significance is selected (most commonly α = 0.05 or 0.01), which signifies the probability of incorrectly rejecting a true null hypothesis.[2] If there is a significant difference between two groups at α = 0.05, it means that there is only a 5% probability of obtaining the observed results under the assumption that the difference is entirely due to chance (i.e., the null hypothesis is true); it gives no indication of the magnitude or clinical importance of the difference.[3] When statistically significant results are achieved, they favor rejection of the null hypothesis, but they do not prove that the null hypothesis is false. Likewise, non-significant results do not prove that the null hypothesis is true; they also give no evidence of…