Addressing self-selection effects in evaluations of mutual help groups and professional mental health services: An introduction to two-stage sample selection models
| Year of publication: |
1996
|
|---|---|
| Authors: | Humphreys, Keith ; Phibbs, Ciaran S. ; Moos, Rudolf H. |
| Published in: |
Evaluation and Program Planning. - Elsevier, ISSN 0149-7189. - Vol. 19.1996, 4, p. 301-308
|
| Publisher: |
Elsevier |