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2. History and rationale of longitudinal research;Baltes,1979
3. The methods and problems of cluster analysis;Blashfield,1988
4. An investigation of the adequacy of two counseling group development theories using tuckerized growth curves;Brossart;Dissertation Abstracts International,1996
5. Assessing group process: An illustration using tuckerized growth curves;Brossart;Group Dynamics,1998