TY  - JOUR
PY  - 1981//
TI  - On defining at-risk status
JO  - Evaluation and program planning
A1  - Stacy, E. Webb
SP  - 363
EP  - 375
VL  - 4
IS  - 3-4
N2  - You can include many in the at-risk group at the expense of including many not at-risk, or include few at the expense of missing many truly at-risk. The paper discusses the use of prevalence data and the relative costs of these two possibilities to help find the best way to separate at-risk and not-at-risk groups. The implications of the data being distributed normally are discussed, and several examples, including one with a nonnormal distribution, are given.<p /> 
LA  - 
SN  - 0149-7189
UR  - http://dx.doi.org/10.1016/0149-7189(81)90035-5
ID  - ref1
ER  -