The Multiplicative Definition of Interaction

The theory of the multiplicative definition of second order interaction is considered. Necessary and sufficient conditions in terms of the correlations in the marginal two-dimensional distributions are found for the existence of a “perfect” set of probabilities. Some progress is reported on the proof of the uniqueness of the multiplicative set of probabilities for a given set of two-dimensional distributions. The multiplicative property of such sets is preserved under pooling of marginal sets only in trivial cases, and so the multiplicative definition cannot be said to be a straightforward generalization from the definition of no interaction in two-dimensional distributions.     

Social Justice in Career Services: Perspectives of University Career Center Directors

Research indicates that career development practitioners value social justice and desire additional skills to be able to advocate effectively. Many of these practitioners work on college campuses under the supervision of career center directors; however, directors' perspectives on social justice have been missing from the literature. Following the National Career Development Association's mandate to actively practice the professional value of honoring diversity and promoting social justice, we surveyed 11 career center directors regarding advocacy in career services. Results of thematic analysis yielded center directors' insights into both defining and promoting social justice. Participants addressed the roles and responsibilities of career counselors, career center directors, and institutional culture. Implications for practice include the importance of open communication and the need for collaboration inside and outside of the career center. These findings highlight potential areas for future research into best practices for integrating social justice and advocacy in university career services.