TY - GEN AU - WOLFF,P C AU - BURNSTEIN,D D AU - HAGGARD,D F AU - VAN LOO,J A TI - Group training with active participation: some methodological limitations SN - 0031-5125 PY - 1998///1101 KW - Color Perception Tests KW - Group Processes KW - Humans KW - Vision Tests N1 - Publication Type: Journal Article UR - https://doi.org/10.2466/pms.1963.16.1.179 ER -