This study was a nonequivalent control group nonsynchronized design. Pregnant women
(n = 232) were assigned to experimental (n = 117) and control (n = 116) groups respectively. The data were
collected from August 2 to 27, 2010. The experimental group received general prenatal care and single 30-
minute session of music therapy, while the control group received only general prenatal care. Anxiety,
stress, and maternal-fetal attachment was assessed using three self-report measures by State scale of the
State-Trait Anxiety Inventory (1976), Pregnant women’s stress scale of Ahn (1984) and Cranley’s (1981)
maternal-fetal attachment scale.