Differences Across Dependent Variables
PND scores were calculated for two categories of dependent
variables: collateral skills and specific social behaviors. Thirtysix
studies targeted specific social behaviors, and 18 studies
targeted collateral skills. One study measured both types of
dependent variables. Similar intervention, maintenance, and
generalization effects were observed between collateral skills
and specific social behaviors. Interventions targeting collateral
skills produced low to moderate intervention (n = 17;
PND M = 72%, range = 25–100%), maintenance (n = 11;
PND M = 75%, range = 33–100%), and generalization effects
(n = 6; PND M = 53%, range = 25–80%). Interventions targeting
specific social behaviors also produced low to moderate
intervention (n = 36; PND M = 69%, range = 17–97%),
maintenance (n = 15; PND M = 85%, range = 35–100%), and
generalization effects (n = 11; PND M = 56%, range = 16–
84%). The Kruskal-Wallis procedure revealed no statistically
significant differences between dependent variables.