An image of a cross (a horizontal line bisected by a vertical line) can be found in cultures, nations, religions, and other groups around the world. Carl Jung would take this as evidence that the cross is __________.

After their marriage, Patrick and Mary Anne agreed to participate in a research project that investigated differences in the level of marital satisfaction over time. Every five years they had to complete a survey that indicated their marital satisfaction

Patrick and Mary Anne are participants in a ________ a. single-blind study. b. double-blind study. c. longitudinal study. d. cross-sectional study.

Ethologists believe that an infant has a sensitive period during which it is optimal to develop an

attachment relationship with caregivers. What is this sensitive period? a. ages birth to five years b. ages birth to six months c. ages birth to one year d. ages birth to two years