Please answer the following question: Read the bio below and try to give details on tracy l. cross 's:    - influences     - field     - workplaces       - birth date     - name     - nationality     - birth place     - alma mater     Bio: tracy l. cross -lrb- born june 25 , 1958 , in tennessee , united states -rrb- is an educational psychologist , the jody and layton smith professor of psychology and gifted education at the college of william and mary . he has previously been the george and frances ball distinguished professor of psychology and gifted studies ball state university -lrb- 2000-2009 -rrb- , the founder and executive director of both the center for gifted studies and talent development -lrb- 2003-2009 -rrb- , and the institute for research on the psychology of gifted students -lrb- 2007-2009 -rrb- . over thirty years , he made important contributions to the field of gifted education , including the development of the school-based conception of giftedness , the information management model , and the continuum of visibility , and was also influential in applying social-cognitive theory and stigma theory to gifted children .
A:
- influences is erving goffman ,- field is psychology , gifted education- workplaces is college of william and mary , ball state university- birth date is 25 june 1958- name is tracy cross- nationality is american- birth place is tennessee , united states- alma mater is university of tennessee , knoxville