https://www.sciencedaily.com/releases/2019/05/190508134511.htm > Woodhouse, an associate professor of counseling psychology, studied 83 low socioeconomic-status mothers and infants at ages 4.5 months, 7 months, 9 months and 12 months to observe and assess attachment. Infants and mothers in the study were racially and ethnically diverse, and infants were selected for high levels of temperamental irritability. > Her findings are detailed in "Secure Base Provision: A New Approach to Examining Links Between Maternal Caregiving and Infant Attachment," which appears in the journal Child Development, co-authored with Julie R. Scott of Pennsylvania State University, Allison D. Hepsworth of the University of the Maryland School of Social Work, and Jude Cassidy of the University of Maryland.