When they first started dating, Norma and Nathan didn't share much about themselves with one another, but as their relationship developed, they began to talk more about personal issues and reveal more about themselves. Their behavior is most consistent with the predictions of

Question

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Social penetration theory explains how relationships progress toward intimacy through the gradual sharing of personal information, which matches the description of Norma and Nathan's evolving relationship.

When They First Started Dating, Norma and Nathan Didn't Share