Christopher Grace serves as the director of the Biola University Center for Marriage and Relationships and as a professor at Rosemead School of Psychology. Dr. Grace earned his M.S. and Ph.D. in experimental social psychology from Colorado State University. Since 1988, he has taught psychology and served in many administrative roles at Biola. Dr. Grace and his wife, Alisa, frequently speak at conferences, churches, and universities on marriage and relationships. With professional training and practical experience from nearly 30 years of marriage, they have counseled thousands of couples, sharing foundational and practical insights on enhancing intimacy. 

Tim Muehlhoff is a professor of communication at Biola University, where he teaches classes in family communication, interpersonal communication, gender and conflict resolution. He completed a Ph.D. in communication theory at the University of North Carolina at Chapel Hill, where his dissertation focused on helping couples move past marital gridlock— difficult issues in marriage that won’t go away despite time and effort. Dr. Muehlhoff has authored several books, including I Beg to Differ and Marriage Forecasting. For nearly 20 years, Dr. Muehlhoff and his wife, Noreen, have been frequent speakers at FamilyLife marriage conferences. 

Alisa Grace serves as a consultant to the Biola University Center for Marriage and Relationships and also co-teaches a course on Christian perspectives on marriage and relationships. She earned a degree in communications from Biola University, and previously served as director of women’s ministries at Redemption Hill Church — Whittier Hills, director of public relations at Far East Broadcasting Co., and director of internal communications and events at Biola University. While she speaks regularly on topics such as dating, marriage and love, she also loves to mentor younger women and newly married couples, and provide marital counseling.

Biola University's Center for Marriage and Relationships (CMR) is a trusted resource that combines the timeless, cross-cultural wisdom of Scripture with relevant and timely perspectives from scholarly research. Featuring practical resources such as an online blog and a podcast, the CMR exists to build and sustain healthy relationships and marriages in the church and broader culture.