Final answer:
Braithwaite and Baxter (2006) identified the contradiction of Openness vs. Secrecy as a key communication challenge in step-families.
Step-by-step explanation:
Braithwaite and Baxter (2006) explored the dynamics of communication in step-families and identified various contradictions experienced by family members. One of the key contradictions they found was the tension between Openness vs. Secrecy. This refers to the struggle of balancing the need for open communication and the tendency or need to keep certain things hidden within the step-family structure. In particular, family members might feel the need to be open and build trust, while at the same time, there might be aspects of their lives or feelings that they wish to keep private.