Table 1.

Global functional status rating scales.

Scale	Features	Comments
Heinrichs-Carpenter Quality of Life Scale	Assesses multiple functional domains	Exclude negative symptom ratings (Intrapsychic foundations)
Specific levels of functioning	Assesses multiple functional domains	Exclude disruptiveness scale
	Can be used as a questionnaire	Basic self-care has a ceiling effect
Personal and social performance scale	Assesses multiple functional domains	Total score does not allow for examination of individual functional domains
Schizophrenia objective functioning inventory	Multiple functional domains	Not widely used
Multidimensional scale of independent functioning	Multiple functional domains	Instructions may be too complex for some informants