General

A treatment derived from experiment and observation rather than theory. In practice this term applies to treatments based upon the individual's clinician's experience and judgement.

A statistical measure. The mean (average) change in the measure divided by the standard deviation (a statistical measure of spread) of the change.

The extent to which a treatment improves outcomes under ideal circumstances

(Standardized Effect Size). A simple way to determine the degree of improvement (or otherwise) of a particular therapy after any placebo effect has been accounted for.

The extent to which something actually works. In medicine this is a precise term and relates to the effect size (see below).

Carr's Disease Repercussion Profile is an individualized measure that gives a profile of perceived impairment in 6 domains: functional activities

Broad area of measurement (e.g. physical function).

A disruption of regular or normal functions of health.

A condition that affects an organism and impairs its normal physiological functioning.

The Delphi Process is a means of reaching consensus through structured consultation between a group of people who may have very different perspectives and fields of expertise.