Standardized mean difference
The difference between two estimated means divided by an estimate of the standard deviation.
Clinical utility[edit | edit source]
It is used to combine results from studies using different ways of measuring the same concept, e.g. mental health.
Benefits[edit | edit source]
By expressing the effects as a standardized value, the results can be combined since they have no units.
Other names[edit | edit source]
Standardized mean differences are sometimes referred to as a d index.
Abbreviations[edit | edit source]
Also called SMD.
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