RT Article T1 Direct measurement of psychotherapeutic outcomes:: Experimental construction and validation of a brief scale JF Psychological test and assessment modeling VO 52 IS 1 SP 29 OP 47 A1 Krampen, Günter 1950-2023 LA English YR 2010 UL https://krimdok.uni-tuebingen.de/Record/1628554924 K1 Verhaltensänderung K1 Psychotherapieforschung K1 Therapieerfolg