| Actor |
a respondent in one of the Add Health saturation schools |
| SABM |
stochastic actor-based model |
| Ego |
the actor whose network and behavior choices are being modeled |
| Alter |
an actor who is named as a friend by the ego |
| Degree |
the total number of alters an ego has named |
| Reciprocated tie |
tie for which the alter also names the ego as a friend; synonymous with mutual tie |
| Transitive triplets |
triplet whereby one of the ego’s alters names a second of the ego’s alters as a friend; “friend of a friend” who is named by the ego as a friend |
| Identical attribute |
indicates that both the ego and the alter have the same attribute value; a measure of homophily for discrete attributes (sex, grade, and race-ethnicity) |
| Similar attribute |
the standardized absolute difference between the ego’s and the alter’s attribute; a raw (uncentered) value of 1 indicates perfect similarity; used as a measure of homophily for continuous attributes and behaviors |
| Average similarity |
the value of similar behaviors, averaged across all of the ego’s alters; average similarity is used as a measure of peer influence or assimilation |
| Peer influence |
the effect of alters’ behavior on ego’s behavior |
| Social influences |
synonym for peer influence |
