In 1970, installations were Anne Arundel Associate Chapter at Anne Arundel Community College, Arnold, Maryland; Alpha Theta Chapter at Asbury University, Wilmore, Kentucky; Illinois Central Associate Chapter at Illinois Central College, East Peoria, Illinois; Alpha Iota Chapter at Wisconsin State University, LaCrosse, Wisconsin; Alpha Kappa Chapter at Indiana State University, Evansville, Indiana; and Alpha Lambda Chapter at Suffolk University Boston, Massachusetts.

The spring of 1971 included installations of Alpha Mu Chapter at Immaculata College, Immaculata, Pennsylvania; Alpha Nu Chapter at Oglethorpe College, Atlanta, Georgia; and Alpha Xi Chapter at Clinch Valley College of the University of Virginia, Wise, Virginia; while Alpha Omicron Chapter was installed at Baptist College at Charleston, Charleston, South Carolina, in the fall.

Constitution revision voted at the 1971 convention included abolishment of associate membership and inclusion of graduate membership. The active membership requirements were changed so that associate chapters would be able to elect active members.

During 1972, Alpha Pi Chapter was installed at Trevecca Nazarene College, Nashville, Tennessee; Alpha Rho Chapter was installed at Stonehill College, North Easton, Massachusetts; and Alpha Sigma Chapter was installed at Dakota Wesleyan University, Mitchell, South Dakota.

Alpha Tau Chapter was installed at Annhurst College, Woodstock, Connecticut, in the fall of 1973.

Alpha Upsilon Chapter at Union University, Jackson, Tennessee, and Alpha Phi Chapter at Marist College, Poughkeepsie, New York were installed in 1975.

Alpha Chi Chapter at Eastern College, St. Davids, Pennsylvania; Alpha Psi Chapter at Hillsdale College, Hillsdale, Michigan, and Alpha Omega Chapter at Saint Mary-of-the-Woods, Saint Mary-of-the Woods, Indiana were installed in 1976.

Beta Alpha Chapter at Lyndon State College, Lyndonville, Vermont, was installed in 1977.

Beta Beta Chapter at George Fox College, Newberg, Oregon, and Beta Gamma Chapter at Columbia College, Columbia, Missouri were both installed in April of 1978.

Beta Epsilon Chapter was installed at Beaver College, Glenside, Pennsylvania, in March of 1979.