TY  - RPRT
TI  - Response productivity: a methodological problem in content analysis studies in psychotherapy.
AU  - G Marsden
AU  - N Kalter
AU  - W A Ericson
PY  - 1974
DO  - 10.1037/h0036256
UR  - https://pubmed.ncbi.nlm.nih.gov/4823558/
ID  - 4823558
ER  -