Table 1.

Selected psychometric data for instruments

Instrument	References	Validity	Reliability
SpS	Reed(1986, 1987)	Criterion-related validity and discriminate validity have been demonstrated	α = 0·90, current α = 0·92
SWBS	Paloutzian and Ellison (1982) Broten (1991) Carson and Green (1992)	SWB factored into RWB and EWB; face validity suggested by examination of item content; SWB scores correlated in predictable ways with other scales	Test-retest reliability coefficients: 0·93(SWB) 0·96 (RWB) 0·86 (EWB) α = 0·89 (SWB), current α = 0·88 α = 0·87 (RWB), current α = 0·88 α = 0·78 (EWB), current α = 0·75
SHI	Highfield (1992)	Content and construct validity based on literature review, expert panel, and factor analysis	α = 0·77, current α = 0·87
MUIS	McCain and Cella (1995) McCain et al. (1996)	Predictive and discriminant validity supported by correlations with stress levels and mood disturbance	α = 0·83, current α = 0·87
DIS	Cella et al. (1996) McCain and Cella (1995) McCain et al. (1996) McCain et al. (1998) Peterman et al. (1997)	Predictive and discriminant validity supported by correlations with quality of life, mood disturbance and uncertainty	Stress: α = 0·83, current α = 0·85 Coping: α = 0·80−0·87, current α = 0·77−0·86
SPS	Kelly et al. (1993)	Trends (NS) for increased SPS after interventions	Not reported, current α = 0·90
IES	Antoni et al. (1991) Ironson et al. (1990) Perry et al. (1992) McCain et al. (1996)	Increased IES after HIV and diagnosis; increased IES related to increased HIV symptoms; decreased IES after intervention	Not reported Not reported α = 0·85−0·86, current α = 0·92
FAHI	Cella et al. (1996) Peterman et al. (1997) McCain et al. (1996)	FAHI sensitive to stage of illness; increased emotional dimension after intervention	α = 0·85−0·86 α = 0·92 α = 0·91, current α = 0·92