Easy to administer (average administration time is between two and twenty minutes).
 

Measures need in three domains:  Daily Living Supports, Health Care Supports, and Behavioral Supports. 
 

Uses a simple five point scale.  View more...
 

Ongoing reliability studies being conducted to insure inter-rater reliability.
 

Training materials available including a video based examiners' curriculum.
 

Accurate need profile information can be used to facilitate state-level planning of the DD Service Delivery system.
 

The authors of the DD-SNAP include a team of psychologists with over 75 years of combined experience in the field of mental retardation.

1997: Initial field test (N = 553)
 

1997-1999:  Two year revision to improve predictive validity.
 

1999:  Second field test conducted, stratified sample (N = 100).
 

1999 field test found to predict "good" or "ideal" support arrays in 70% of individuals.