TY - GEN AU - Rapkin,B D AU - Dumont,K A TI - Methods for identifying and assessing groups in health behavioral research SN - 0965-2140 PY - 2001///0201 KW - Group Processes KW - Group Structure KW - Health Behavior KW - Humans KW - Psychometrics KW - Research Design KW - Substance-Related Disorders KW - psychology N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1080/09652140020004304 ER -