Ferrans and Powers Quality of Life Index- Generic Version (QLI-G)
Author of Tool:
Ferrans, C. & Powers, M.
Ferrans, C. & Powers, M. (1985). Quality of Life Index: Development and psychometric properties. Advances in Nursing Science, 8, 15-24.
AAFFIRM Investigators. (2005). Quality of life in atrial fibrillation: The atrial fibrillation follow-up investigation of rhythm management (Affirm) study. American Heart Journal, 149(1), 112-120.
Allen, L., Haririfar, M., Cohen, J., Henderson, M., (2000). Quality of life and locus of control of migraineurs. Clinical Excellence for Nurse Practitioners, 4(1), 41-49.
Primary use / Purpose:
The Ferrans and Powers Quality of Life Index- Generic Version (QLI-G) is a 66-item inventory rated on a 6 point Likert type scale. The questionnaire is split into two parts; the first section contains 33 questions relating to general satisfaction, and the remaining half contains a similar number of questions relating to values (for example: how important is family life to you?).
Quality of life is emerging as an increasingly important construct within the health profession. It has proven to be a valid and reliable marker of patient health and well-being. Ferrans defines quality of life as “a person’s sense of well-being that stems from satisfaction or dissatisfaction with the areas of life that are important to him/her”. The Ferrans and Powers Quality of Life Index- Generic Version (QLI-G) is a valuable tool in measuring this construct with a large number of citations demonstrating its robustness. Slight variations of the scale are available at the instruement website linked below for a range of specific illnesses.
The psychometric properties of Ferrans and Powers Quality of Life Index- Generic Version (QLI-G) are discussed in Ferrans & Powers (1985) as well as on their instrument-dedicated website (linked below).