Appendix A.

Ego-network assessment (sociomatrix measure).

Note. The first names of participants’ listed friends (up to 10) were displayed in the rows and columns of the sociomatrix. In Experiments 1 and 2, participants indicated whether their own friendship nominations were reciprocal by answering “How many of the friends named above see you as a friend?” (all, some, or none). Those answering “some” were prompted to indicate which of their friends saw them as friends.