TY  - RPRT
TI  - A note on questionnaire rigidity and extreme response set.
AU  - J C BRENGELMANN
PY  - 1960
DO  - 10.1192/bjp.106.442.187
UR  - https://pubmed.ncbi.nlm.nih.gov/13804178/
ID  - 13804178
ER  -