Carl Westin

3-4 Results 53 were significantly higher for conformal than nonconformal solutions (with average z scores of +.234 and -.234, respectively). Figure 3-7(c) shows that agreement rat- ings showed a borderline-significant interaction trend between complexity and con- formance ( F (l,15) = 3.2, p = .095). Participants tended to show higher agreement with conformal solutions, but this effect was less pronounced under high complexity conditions. 3-4-3 Response time to advisories Response time, from advisory onset to acceptance/rejection, ranged from approxi- mately 0.6 seconds to 14.6 seconds (again, there was a fifteen second maximum). Response time showed a significant main effect of conformance ( F (l,15) = 9.6, p = .007) and a trend for complexity ( F (l,15) = 4.2, p = .059). Overall, response time was on average slower (higher) for nonconformal advisories (5.9 seconds). The boxplot in Figure 3-8(b) show that, on average, participants responded significantly faster to conformal advisories (4.9 seconds). This effect was about the same for both accepted and rejected advisories. Figure 3-8(a) shows that response time was slower (higher) for low versus high complexity conditions (5.7 and 5.1 seconds, re- spectively). Although not significant, Figure 3-8(c) shows that conformal advisories benefited response time (i.e., reduced it) more with increasing complexity. As with agreement ratings, we proceeded to break out response time results based on whether advisories were accepted or rejected. On average, participants were slower to reject (6.9 seconds) than to accept (4.7 seconds). When breaking out conformance, we found that both accepted and rejected conformal advisories (4.4 and 6.0 seconds, respectively) were responded to faster than accepted and rejected nonconformal advisories (5.0 and 7.2 seconds, respectively). 10 8 6 4 2 0 Response time (seconds) CX high CX low (a) Complexity 10 8 6 4 2 0 Response time (seconds) cfY cfN (b) Conformance 7 6.5 5 5.5 5 4.5 4 Response time (seconds) CX high CX low cfY cfN 5.4 4.5 6.1 5.8 (c) Interaction F IGURE 3-8: Response time (seconds), by complexity (a), conformance (b), and their interaction (c).